Commit Graph

185 Commits

Author SHA1 Message Date
localai-org-maint-bot
8f9184fbb2 feat(cli): support systemd socket activation (#11169)
* feat(cli): support systemd socket activation

Serve the API from a single stream listener inherited through the systemd activation protocol while retaining the existing address bind path when no listener is provided. Validate activation metadata, preserve the public-bind safety check, and document an on-demand systemd setup.

Assisted-by: Codex:gpt-5

* fix(cli): satisfy listener cleanup lint

Make the best-effort close explicit so errcheck accepts the deferred systemd listener cleanup.

Assisted-by: Codex:gpt-5 [golangci-lint]

---------

Co-authored-by: localai-org-maint-bot <306269227+localai-org-maint-bot@users.noreply.github.com>
2026-07-29 01:44:24 +00:00
mudler's LocalAI [bot]
6584db992f fix(nodes): never schedule a model onto a node that cannot store it (#11054)
* fix(nodes): never schedule a model onto a node that cannot store it

A worker whose models filesystem was 100% full kept advertising
`status: healthy`, stayed a scheduling candidate, was picked to host a
70 GB video model, accepted the staging request, transferred ~17 GB and
only then failed:

  staging .../whisper-large-v3/model.fp32-00001-of-00002.safetensors:
    upload to node b7bacbf4-... failed with status 500:
    writing file: /models/longcat-video-avatar-1.5/...: no space left on device

The node was at 937G/937G/0-avail. Total elapsed before the truth
surfaced: 16 minutes, for a decision that could never have succeeded.

The worker health signal only ever proved liveness. `/readyz`
(WorkerReadiness/NATSReadiness) checks the NATS link; `status: healthy`
in the registry is driven by heartbeat recency. Node capacity carried
VRAM and RAM but no disk figure at all, and the router compared model
size against VRAM only — nothing anywhere looked at free space on the
filesystem that staging actually writes to.

Report it, then use it:

- Workers now measure the filesystem backing their MODELS directory
  (not `/` -- staged weights land in the models path, and that mount is
  very often separate) and report `total_disk`/`available_disk` on
  registration and on every heartbeat. Free disk moves faster than VRAM
  under staging traffic, so the per-heartbeat refresh matters.
- The SmartRouter drops nodes that cannot store the model before it
  picks one. The requirement comes from `modelPayloadBytes` -- the same
  local paths `stageModelFiles` uploads, already computed for the
  size-derived load budget -- plus a 5% / 1 GiB margin, rather than a
  fixed percentage of the node's disk. A percentage threshold would take
  a small-but-usable node out of rotation for models it could hold, and
  on a homogeneous cluster would strand every node at once.
- When no node fits, scheduling fails immediately with an error naming
  the requirement and each node's free space, instead of picking one and
  discovering it mid-transfer.

Two deliberate non-changes. Low disk does not mark a node `unhealthy`:
the check is per model, so a node too small for one model stays a valid
target for smaller ones. And `total_disk == 0` means "does not report
disk" (pre-upgrade worker, or a failed stat), not "full" -- such nodes
pass through untouched so a rolling upgrade never empties the candidate
pool. A genuinely full node is distinguishable: non-zero total, zero
available. Registry read failures are logged and scheduling continues
unfiltered; a database hiccup must not wedge a cluster.

Free space is surfaced on the node detail page next to VRAM, since the
incident's signature was a node that looked entirely healthy.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

* feat(nodes): make the disk-headroom check operator-controllable

The admission check added in the previous commit had no off switch. A
scheduler-side veto with no escape hatch is a liability: our size
estimate can be wrong (deduplicating or compressing filesystems, a
backend that fetches its own weights rather than loading the staged
copy), and an operator who hits that has no way out but a downgrade.

Add one knob with two surfaces that share a single source of truth:

- `--distributed-disk-headroom-check` / `LOCALAI_DISTRIBUTED_DISK_HEADROOM_CHECK`
  (default true), following the `--distributed-prefix-cache` pattern for
  a default-on distributed feature.
- `distributed_disk_headroom_check` in the runtime-settings registry, so
  it can be flipped without a restart from `POST /api/settings` and from
  Settings -> Distributed in the WebUI.

Both write `DistributedConfig.DiskHeadroomDisabled`, and the SmartRouter
reads that member LIVE on every scheduling decision through a closure
over the application config rather than a value snapshotted at
construction. Env/CLI sets the boot value, the runtime setting overrides
it live, last write wins, and there is exactly one member to read.
Snapshotting would have made the runtime toggle a no-op until restart.

Disabled means WARN, not SKIP. Selection goes back to ignoring free disk
-- byte for byte the pre-check behaviour -- but the check still runs, and
when it would have rejected every node it says so, naming the knob that
suppressed it. Going quiet when switched off would reproduce the exact
condition that made the original incident expensive: a cluster doing
something that could not work and saying nothing. Disabling is also
logged once at startup. Warning only on the total-rejection case keeps
it actionable rather than chatty on a heterogeneous cluster.

Also fixes a false positive in the check itself: shared-models mode
(LOCALAI_DISTRIBUTED_SHARED_MODELS) stages nothing at all -- every node
already mounts this models directory at this path -- so demanding the
full checkpoint size of free space per node would have rejected a
cluster that needs no new bytes. The check is skipped there entirely.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-23 00:03:21 +02:00
mudler's LocalAI [bot]
ff299df453 perf(http): gzip responses, cache hashed assets, bound the trace endpoints (#11056)
Three measured HTTP-layer regressions on a live deployment, fixed together
because they all shape the bytes on the wire.

1. No compression. The server sent no Content-Encoding regardless of what
   the client asked for, confirmed with curl straight at 127.0.0.1:8080 so
   it was not an ingress artefact. Adds gzip middleware, on by default and
   configurable via LOCALAI_DISABLE_HTTP_COMPRESSION and
   LOCALAI_HTTP_COMPRESSION_MIN_LENGTH (default 1024 bytes so tiny bodies
   are not wastefully wrapped). Streaming routes are skipped explicitly:
   an SSE Accept header, a WebSocket upgrade, and the completion / SSE /
   log-tail path prefixes, because whether a completion request streams is
   decided by the request body, which the middleware runs too early to see.
   Already-compressed formats (woff2, png, mp4, ...) are skipped too; gzip
   made those marginally larger. Measured over the embedded React build:
   JS+CSS 2815 KB raw to 808 KB gzipped (3.48x).

2. No cache headers on content-hashed assets. Vite hashes the filenames,
   so a given /assets/ URL can never change content, yet they shipped with
   no Cache-Control, ETag or Last-Modified, and the browser re-fetched the
   whole bundle on every navigation with no conditional request available.
   /assets/* now carries public, max-age=31536000, immutable. index.html
   stays no-cache so a deploy is picked up, and the unhashed locale JSONs
   get a short TTL rather than the immutable one.

3. Unbounded trace endpoints. /api/traces returned 21,033,606 bytes in
   4.65s and /api/backend-traces 3,471,682 bytes in 1.50s, and the admin
   UI polls both every few seconds. The ring buffer holds up to 1024
   entries, each embedding full input_text payloads. Both list endpoints
   now take limit / offset / full, default to 50 entries, and strip the
   heavy fields (request and response bodies plus headers for API traces,
   body and data for backend traces) unless full=true. Every trace gets a
   process-lifetime ID and GET /api/traces/{id} and
   /api/backend-traces/{id} serve the full record, which is what the UI
   fetches when a row is expanded. The list body stays a JSON array;
   paging metadata rides in X-Total-Count, X-Trace-Offset and
   X-Trace-Limit. Reproducing the live shape in a test, the polled payload
   goes from 21,131,097 bytes to 7,201 bytes.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-22 22:51:25 +02:00
mudler's LocalAI [bot]
01fca9c9b2 fix(distributed): scale the remote model-load deadline with checkpoint size (#11030)
The gRPC deadline for the remote LoadModel call was a fixed 5m. It starts
only after the backend install and file staging have completed, so it
covers the worker's checkpoint read and pipeline init alone - work whose
duration is proportional to the bytes on disk. A fixed value is therefore
a model-size cliff, not a timeout.

Measured in production: a 70 GB video checkpoint (longcat-video-avatar-1.5)
on an NVIDIA Jetson Thor worker failed reproducibly with
"rpc error: code = DeadlineExceeded" after 953.5s of wall clock. Backend
install plus staging consumed ~11m, then LoadModel got its 5m and expired.
The load never had a chance, and the operator saw only a generic
DeadlineExceeded with no hint that a config value was the cause.

Raising the constant does not fix this. It moves the cliff to the next
larger model - the cluster has to support 600 GB checkpoints - and it makes
a genuinely wedged SMALL model hang for the whole inflated duration before
anyone notices, which is a real regression in failure latency.

So derive the budget from the checkpoint size instead:

    budget = 5m + 20s/GiB, capped at 6h

2 GiB -> 5m40s, 70 GiB -> 28m20s, 600 GiB -> 3h25m. The per-GiB rate is
deliberately pessimistic (~54 MB/s of weight read) because the errors are
not symmetric: too long costs only failure latency on a load that was going
to fail anyway, too short is a guaranteed false failure on a healthy load.

The size is measured from the frontend's local model files, over the same
path set stageModelFiles uploads. When those files are not present locally -
a backend handed a bare HuggingFace repo id fetches its own weights on the
worker - there is nothing to measure and the budget stays at today's 5m.

An explicit LOCALAI_NATS_MODEL_LOAD_TIMEOUT still wins outright, in both
directions: a shorter override is honoured, so an operator who wants fast
failure is not silently extended by the heuristic.

The cold-load hold needed widening to match. It extends on staging progress,
but LoadModel reports none, so once the last byte lands the hold expires a
stall window later and would cancel a load still well inside its own budget.
scheduleAndLoad now extends the hold by the load budget plus the staging
margin as it enters the load phase; ModelLoadCeilingFor stays the hold's
starting budget rather than its maximum.

Finally, a deadline that does expire now names the budget, the checkpoint
size it was derived from, and the knob that overrides it, instead of
surfacing a bare "context deadline exceeded".


Assisted-by: Claude Code:claude-opus-4-8[1m] [Read] [Edit] [Bash]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-22 09:30:23 +02:00
mudler's LocalAI [bot]
83a0f16a21 feat(gallery): let one gallery entry offer several builds of the same model (#10943)
* feat(system): expose raw detected capability for model meta resolution

Model meta gallery entries express hardware fallback through candidate
ordering rather than a capability map, so they need the undecorated
detected capability string without Capability's default/cpu fallback
chain.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(system): drop duplicate capability accessor, cover DetectedCapability

ReportedCapability was added with a body identical to the existing
DetectedCapability. Keep one accessor and move the specs onto it, since
DetectedCapability had no direct coverage of its no-fallback behavior.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): parse IEC binary size suffixes (KiB..PiB)

ParseSizeString accepted only SI suffixes, so a "20GiB" floor was rejected
outright. Model and VRAM sizes are conventionally quoted in IEC units, and
silently reading GiB as GB would understate a floor by about 7%.

Purely additive: these inputs previously returned an unknown-suffix error.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add Candidate type for meta model entries

Candidate is one option in a meta entry's ordered variant list. It names a
concrete gallery entry and declares when that entry suits the host.

EffectiveMinVRAM resolves the VRAM floor, letting an authored min_vram win
over a nightly-inferred one. An unparseable floor errors instead of being
treated as absent: swallowing a typo would turn a constrained candidate into
an unconstrained one and select a too-large variant rather than fail loudly.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add hardware-aware model variant resolver

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): allow gallery model entries to declare variant candidates

A gallery entry with a non-empty candidates list is a meta entry: it names
an ordered list of concrete entries and resolves to the first one the host
can satisfy, instead of describing model files directly.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): resolve meta model entries to hardware-appropriate variants at install

Meta gallery entries carry an ordered candidate list; at install time the
first candidate the host satisfies is resolved and its payload installed
under the meta's name, so the model keeps a stable name regardless of which
variant backs it. The resolution is recorded in the installed gallery
config so a reinstall honors a prior pin and operators can see the backing
variant.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): key meta pin recall on the installed name and detach resolved entries

Six review findings on the meta-entry install path.

Pin recall was keyed on the gallery entry name while applyModel writes the
record under the install name (req.Name when supplied), so a meta installed
under a custom name with a pin lost that pin on reinstall and was silently
re-resolved onto a different variant, possibly swapping its backend. Compute
the install name with applyModel's own precedence before the recall.

ResolveMetaModel returned a shallow struct copy, so the resolved entry's
Overrides aliased the gallery entry's map and the install path's in-place
mergo merge wrote the caller's request into the shared catalog. Detach
Overrides, ConfigFile, AdditionalFiles, URLs and Tags. Not exploitable today
only because this path re-unmarshals the gallery per call, which is a
property nobody should have to rely on.

Also: overlay the meta's name onto the persisted config for meta installs so
the gallery file no longer records the variant's name; move the pinned-VRAM
warning below the variant validation so a pin naming a nonexistent entry does
not warn about VRAM before failing for an unrelated reason; and stop seeding
config.URLs in the config_file branch, which duplicated every declared URL.

Add seven network-free specs driving InstallModelFromGallery with a meta
entry: variant payload wins over the meta's legacy url fallback, the
resolution record round-trips to disk, a pin is recorded and honored on
reinstall including under a custom install name, and the resolved entry does
not alias the gallery's maps.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): deep-copy meta overrides and make two specs functional

ResolveMetaModel detached the resolved entry's Overrides and ConfigFile with
maps.Clone, which only copies the top level. Gallery overrides are nested in
practice (parameters.model is near-universal) and the install path merges the
caller's request with mergo.WithOverride, which recurses into nested maps and
overwrites them in place, so the gallery entry's own inner maps were still
reachable and still got rewritten by the last caller to install.

Copy both maps all the way down instead, recursing through the container shapes
a YAML decoder produces. ConfigFile is not mutated on the install path today,
but it carries the same kind of nested payload and leaving it shallowly cloned
would invite the bug back.

Also fix two specs that passed whether or not their target fix was present:

- "does not write the caller's overrides back into the gallery entry" re-read
  the catalog from disk, which re-unmarshals fresh structs and so cannot
  observe in-memory aliasing. It now asserts against the in-memory gallery
  entry and drives the real mergo merge.
- "round-trips the resolution record to disk under the meta's name" asserted a
  name that is already correct in the config_file branch. It now drives the url
  branch via a file:// fixture, where the meta-name overlay actually applies.

Both were verified red by reverting their fix.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(gallery): lint meta model entry invariants in index.yaml

Adds Ginkgo specs that parse the shipped gallery/index.yaml and enforce
the invariants that keep meta entries safe: a legacy url fallback equal
to the final candidate's url, references only to existing non-meta
entries, a min_vram floor on every candidate but the last-resort one,
a capability drawn only from the vocabulary the system can report, and
descending VRAM floors within a capability group.

The capability check is the only compensating control for a typo there.
Candidate matching is a case-sensitive exact comparison against
SystemState.DetectedCapability(), so an unknown value never matches and
falls through silently instead of erroring. The vocabulary therefore
mirrors the raw return set of getSystemCapabilities(), which notably
excludes "cpu": that is a fallback key inside Capability(capMap) on the
meta backend path, never a reported capability. A CPU-only host reports
"default".

These pass vacuously until the pilot meta entry lands; the guard is
intentionally in place before the thing it guards.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(gallery): close coverage gaps in the meta entry lint

The ordering invariant grouped candidates by capability and asserted floors
descend within a group. A candidate with an EMPTY capability matches every
host, so it does not belong in its own group: it dominates every later
candidate whose floor is at or above its own, across capability groups.
Track a running minimum floor over the unconditional candidates instead,
which subsumes the old same-group check for the empty capability.

Every spec skipped non-meta entries, so with zero meta entries in the index
all five bodies were no-ops. Aligning GalleryModel.IsMeta() with
GalleryBackend.IsMeta(), whose semantics are deliberately opposite, would
have made all of them pass while checking nothing. Extract each invariant
into a helper over a slice of entries returning the violations it finds, and
cover those helpers with synthetic fixtures so the logic stays tested at zero
meta entries. The index-driven specs are now a thin application of already
proven logic.

Also assert the index parses non-empty, report every violation in one run
rather than aborting on the first, and parse the index once for the suite.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* ci(gallery): add nightly denormalization of meta model candidates

Fills the read-only backend, quantization and inferred_min_vram fields on
meta gallery candidates and opens a PR, modeled on the existing
checksum_checker job. Computing these needs network access, so it happens
nightly rather than at install time.

An authored min_vram is never modified: a human who measured a real load
knows more than a pre-download estimate does.

The index is rewritten via yaml.Node rather than a document round-trip. A
full round-trip reflows all ~26k lines of gallery/index.yaml, which would
bury the computed values and make the nightly PR unreviewable. The rewrite
touches only the three derived keys, so authored styling survives and a run
that computes nothing leaves the file untouched.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ci): keep the gallery denormalize diff reviewable and self-healing

The nightly denormalization job edits YAML nodes instead of round-tripping
structs so its PR stays small enough for a human to review, but the write
path undid that: yaml.Marshal re-encoded the node tree at yaml.v3's default
4-space indent and dropped the leading document marker, reflowing roughly
6000 lines around the handful of real changes. Encode through
yaml.NewEncoder at the index's authored 2-space indent and restore the
header. A write that changes three fields now changes three lines.

Stale inferred_min_vram values were also never cleared. Both skip paths
(an authored min_vram is present, or the candidate is the last resort)
returned before touching the field, so a candidate that gained a floor or
became the last resort after a reorder kept an inferred value that
EffectiveMinVRAM reported as a real constraint, failing the meta lint with
no way for the job to self-heal. Clear the field before both skips.

The workflow discarded a whole night's work on any single failure: the
program exits 1 when a candidate cannot be estimated, which aborted the job
before the PR step, so one unreachable candidate blocked every other
refresh indefinitely. Capture the status, open the PR with what was
computed, mark the PR body as partial, and fail the run afterwards so the
problem still surfaces.

Also preserve the index's existing file mode instead of forcing 0644, and
drop the redundant //go:build ignore tag, since Go already skips dot
directories and the sibling modelslist.go carries no tag.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): add nanbeige4.1-3b meta entry with hardware-resolved variants

Adds the first real meta entry to the gallery index. It resolves to the
Q8_0 build on hosts with at least 6GiB of VRAM and to the Q4_K_M build
everywhere else, installing either payload under the stable name
nanbeige4.1-3b.

The entry carries a url equal to its final candidate's url. LocalAI
releases that predate candidates support parse the index non-strictly
and drop the key silently, so without that url they would list the entry
and install nothing. A regression spec parses the index the way those
releases do and asserts every meta entry stays installable for them.

Also teaches core/schema/gallery-model.schema.json about candidates. The
schema sets additionalProperties: false at the top level, so an author
following CONTRIBUTING.md and adding the yaml-language-server comment
would otherwise get a validation error on this entry.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): make candidate entries complete, installable entries

Reworks hardware-resolved gallery variants after a design pivot. There is no
longer a separate "meta" entry kind. A gallery entry is a normal, complete
entry that may additionally carry candidates:, a list of hardware-gated
upgrades over itself, and the entry is itself the last-resort candidate.

The previous design relied on a bare url: as the fallback for LocalAI releases
that predate candidates support. That fallback is empty in practice: none of
the 80 gallery/*.yaml files carry a top-level files:, and 1216 of 1281 index
entries carry their payload in the index entry itself, so a url alone yields a
config template with nothing to download. Since every released LocalAI reads
gallery/index.yaml live from master, merging a payload-less entry would have
shown every existing user a model that installs to a broken state. Making the
entry its own base candidate removes the problem at the root: old clients drop
the candidates key and install the entry exactly as they do today.

Resolution order is now explicit pin, then capability plus VRAM over the
declared upgrades, then the entry itself. The entry ALWAYS installs: when its
own min_vram or capability is unmet the installer warns and installs it
anyway, because there is nothing below it and refusing would make the gallery
behave worse the newer the client is. A pin naming the entry's own name is
valid and is how an operator declines an upgrade.

IsMeta() becomes HasCandidates(), ResolveMetaModel becomes ResolveVariant, and
the persisted meta_name record key becomes entry_name. GalleryBackend.IsMeta()
is a separate concept and is untouched.

The lint drops the three rules the pivot makes wrong (url equality with the
final candidate, no inline payload, unconstrained final candidate) and gains
one: the entry's own floor must sit strictly below every candidate's, since a
base that outranks a candidate makes that candidate unreachable.

The pilot entry is now the existing nanbeige4.1-3b-q4, which gains a 2GiB
floor of its own and a single 6GiB upgrade to nanbeige4.1-3b-q8, replacing the
separate nanbeige4.1-3b entry added in d0d441bb4.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): select model variants by hardware fit, not authored order

Gallery entries could already carry a list of alternatives, but selection was
an authored, ordered, first-match policy: every candidate declared a
`capability` string and the VRAM floors had to descend in a hand-tuned order.
That pushed hardware knowledge onto whoever edits the gallery and made ordering
load-bearing, so a reordered list silently changed what users installed.

None of it was necessary. SystemState.IsBackendCompatible already derives
hardware support from a backend name alone: it knows MLX and metal are
Darwin-only, CUDA is NVIDIA-only, ROCm AMD-only, SYCL Intel-only. Selection can
read that instead of asking authors to restate it.

Authoring is now just a list of names:

    - name: qwen3.6-27b
      min_memory: 4GiB
      variants:
        - model: qwen3.6-27b-mlx-8bit
        - model: qwen3.6-27b-gguf-q8
          min_memory: 28GiB

and all the intelligence moved into the selector. Given a host it drops the
variants whose backend cannot run here, drops those whose known memory
requirement exceeds what the host has, and takes the LARGEST of what is left,
because a bigger footprint is a higher quality quantization of the same model.
A variant of unknown size is kept, since nothing proves it does not fit, but it
ranks last so a proven fit always beats a guess. An explicit pin still wins
outright, and if nothing survives the entry installs its own payload: the base
always installs, this never refuses.

Available memory is VRAM when a GPU was detected and system RAM otherwise, read
through xsysinfo so a cgroup limit is honored and a container gets its own
limit rather than the node's RAM.

Capability disappears entirely, from the types, the schema and the lint. VRAM
and RAM collapse into one `min_memory`, because a model's footprint is roughly
the same wherever it lives and one figure is compared against whichever applies.
The lint rules about ordering, the capability vocabulary and floor
relationships are deleted with the hazards they described; what remains is that
every variant names an entry that exists and does not itself declare variants,
plus that any memory figure actually parses.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* gallery: size model variants with a live probe, drop the nightly denormalizer

Selection needs each variant's size to decide whether it fits and to rank
largest-first. That figure was written into the index by a nightly job, which
made the gallery carry a derived value that could drift from the entry it was
derived from. Derive it at install time instead.

pkg/vram already sizes a model without downloading it, and the gallery UI
already uses it: a remote GGUF header range-fetch, then an HTTP HEAD for the
content length, then any declared size:. It caches its results, so reuse it
rather than writing a second probing path.

A probe failure must never fail an install, so an unprobeable variant is
treated as unknown: it survives the memory filter, because nothing proves it
does not fit, and it ranks last, so a known-good fit always beats a guess. If
every probe fails, selection still terminates on the base entry.

The probe is injected through ResolveEnv rather than called directly, for the
same reason the backend compatibility check is: specs pin an exact size, or an
exact failure, without reaching the network.

With that in place three things are dead weight and go:

- The nightly job and the fields it populated. Variant.Backend was redundant
  because the backend is resolved live from the referenced entry during
  selection, and Quantization was display-only that nothing read.
- min_memory on the base entry. The base always installs and its floor could
  only warn, so it could not change any outcome.
- The lint rules and schema entries for both.

min_memory on individual variants stays, as the override for when the probed
size is wrong. An authored figure now suppresses the probe entirely rather
than merely outranking it, so it costs no round trip.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): expose model variants for selection over API, CLI and MCP

A gallery entry may carry `variants:`, alternative builds of the same model.
Selection already worked at install time, but nothing could see what an entry
offered or ask for a specific build, so the feature was undrivable.

Listing: `GET /api/models` now reports `variants` and `auto_variant` for the
entries that declare variants. Each variant carries its resolved backend, its
measured size and whether it fits this host. `auto_variant` is what installing
without a choice would pick right now.

The new gallery.DescribeVariants runs the same variantOptions + SelectVariant
pass the installer runs, so the reported default cannot drift from what
installing actually does, and HostResolveEnv is extracted so both derive the
host and share pkg/vram's probe cache from one place.

Performance: an entry that declares no variants returns early without touching
the probe, so the ~1280 ordinary entries cost exactly what they cost before.

Selection: `variant` is accepted on POST /models/apply, as a query param on
POST /api/models/install/:id, on the gallery apply file/string request, as
`local-ai models install --variant`, and as a parameter on the install_model
MCP tool (both the httpapi and inproc clients). Empty means auto-select.

An unknown variant name now fails the install naming what was requested. This
closes a real hole: an entry declaring no variants short-circuits before
selection runs, so a requested variant was previously dropped silently and the
install reported success.

startup.InstallModels ends in a variadic model list, so install options could
not be appended to it; InstallModelsWithOptions is added alongside and
InstallModels delegates to it. No caller signature changed.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): drop the redundant variant min_memory field

Variant.MinMemory was an authored override for when the live probe misreads
a variant's footprint. It duplicated an existing field: probeEntryMemory
already passes the entry's declared size: into EstimateModelMultiContext,
whose cascade prefers that declared size over its own guesswork. Correcting
size: on the referenced entry fixes the figure for every consumer rather
than only for variant selection, so min_memory shadowed the right answer.

A variant is now nothing but a name. Its effective size is exactly the probe
result, and an unknown stays unknown: it survives the filter and ranks last.

EffectiveMemory loses its error return along with the field. The authored
string was the only thing that could fail to parse, so the error had no
remaining source and was propagating dead nil-checks through SelectVariant,
DescribeVariants and the pin warning.

Selection behaviour is unchanged. The specs covering probe-derived sizing,
ranking, filtering, the unknown-size path, pin recall, entry/variant
metadata split and deep-copy isolation all survive; the three install specs
that needed a definite size now declare it through the referenced entry's
own size:, which exercises the documented escape hatch directly.

gallery/index.yaml is untouched: no entry ever carried the key.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): rank the entry's own build against its variants

Variant selection pulled the declaring entry's own payload, the base, out
of the candidate set and consulted it only once every declared variant had
been rejected. Two real failures followed.

A variant whose size the probe cannot determine deliberately survives the
memory filter, because nothing proves it does not fit. As the only survivor
it then won outright on any host, however small: a 2GiB machine installed an
unmeasured variant in preference to the 4GiB build the entry itself ships,
with no warning. 241 of the 1280 current index entries carry no files and no
size, which is exactly that shape.

"Largest wins" also broke whenever the base was the largest. An author
writing a Q8 entry that offers a Q4 downgrade for small hosts, a natural
shape that nothing in the lint, schema or docs discourages, had the Q4
installed on every large host instead.

Make the base an ordinary participant. It is still exempt from both filters,
so selection always terminates on something installable, but it is now
ranked against the variants: a proven fit first and largest, then the base,
then any variant whose size nothing could measure. Both failures disappear
together. The base is probed for its size accordingly, which it was not
before, because an unsized base would lose every contest to an unmeasurable
variant.

FellBackToBase is kept but narrowed to "no declared variant survived",
rather than "the base was chosen", since the base now also wins on merit and
that is not worth warning about.

A recalled variant pin also became a permanent install failure. A pin the
caller supplies on this request must stay fatal, but one recalled from
._gallery_<name>.yaml can be invalidated by any later gallery edit, and
failing on it turned one rename into a model that could never be reinstalled
or upgraded again short of deleting a dotfile the user has never heard of.
A stale recalled pin is now dropped with a warning naming it, and selection
runs as if it had never been recorded.

Also drop the last textual reference to two abandoned designs from the
DetectedCapability comment, correct the documented variants JSON example,
which showed a memory_bytes of 0 that omitempty makes impossible, and remove
an em dash from the install skill.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): budget variant memory from RAM when a GPU reports no VRAM

Variant selection read its memory budget from VRAM whenever a GPU
capability was detected, and from system RAM only when none was. Apple
Silicon satisfies the first branch and fails the premise: arm64 macs report
the metal capability unconditionally, without probing anything, while
TotalAvailableVRAM has no discrete VRAM pool to find and returns zero. The
budget therefore came out as zero on every Mac.

Zero drops every variant carrying a known size, so the base build was
installed on all of them however much memory the machine had. The feature
was inert on the platform, and silently: falling back to the base is a
legitimate outcome, so nothing looked wrong.

Take VRAM only when it is actually a number, and fall back to RAM
otherwise. On a unified-memory host RAM is not an approximation of the
budget, it is the budget, since the GPU shares it. A discrete GPU whose
VRAM could not be read also lands on RAM, which overstates what the card
holds but understates nothing the host has; the previous zero understated
both.

An unreadable RAM figure still yields zero and still installs the base, so
a genuinely unknown host is not talked into a larger download.

This is what turned tests-apple red: "installs a fitting variant's payload
under the entry's own name" asserts on selection, and the runner resolved
to the base because its budget was zero. The added specs pin the branch
directly rather than relying on a macOS runner to notice again.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): add a model variant picker to the models gallery

PR #10943 shipped the server side: a gallery entry may declare `variants:`,
`GET /api/models` attaches `variants` and `auto_variant` to declaring
entries, and `POST /api/models/install/:id` accepts a `variant` query
parameter. Nothing in the UI consumed any of it, so the feature was not
reachable from the browser. This wires it up.

modelsApi.install takes an optional second argument and appends an encoded
`?variant=` only when one is given, so every existing call site keeps
sending exactly the request it sent before.

On the models table, an entry that declares variants gets a split button.
The primary Install still installs the auto-selected build, because auto is
the default and the point of the feature; the chevron opens a menu for a
deliberate override. It follows the Backends.jsx precedent: one shared
Popover re-anchored per row, rendering .action-menu items, which brings
Escape, outside-click and focus return along with it. An entry that
declares no variants renders exactly as it did before.

A variant that does not fit is dimmed but stays selectable, since the server
honors an explicit choice with a warning rather than refusing it.

memory_bytes is omitempty on the wire, so an absent key means the size is
unknown and never zero. A single helper guards both the menu and the detail
row, because formatBytes would otherwise render a falsy value as "0 B",
which reads as "needs nothing".

The expanded detail row gains a Variants section listing each build's
backend, size, whether it fits, which is the entry's own build, and which
one auto-selection would pick, built from the existing DetailRow helper and
.badge classes.

Eight Playwright specs cover the picker, including that plain Install sends
no variant parameter and that choosing one sends it. One pre-existing
assertion was scoped with .first(): the Variants section legitimately adds
more llama-cpp badges to the detail row, which tripped strict mode.

UI line coverage 49.42% -> 49.36% against a 40.0 baseline and 0.8pp
tolerance; branch coverage rose 72.04% -> 72.66%.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): describe model variants from a companion endpoint

Variant description probes each referenced entry's weight files over the
network: an HTTP HEAD plus a ranged GET, serial, five seconds per probe
with no aggregate deadline. Running it inline in GET /api/models made one
listing cost (entries x variants) round trips. The Manage page fetches
with items=9999, so at 200 declaring entries that is ~1000 serial probes,
minutes of a blocked handler and gigabytes of range traffic for a single
page load. Only one entry declares variants today, but the feature exists
so that many will.

Follow the precedent already set for VRAM estimates. The listing now
reports only has_variants, a length check on loaded metadata that touches
nothing, and GET /api/models/variants/:id returns the description for one
entry, mirroring estimate/:id in route shape, auth and error handling.
DescribeVariants itself is unchanged; only its caller moved.

The picker fetches lazily at the two points where a user asks to see
variants, opening the split-button menu and expanding the detail row, and
caches per entry for the page session. An entry declaring no variants
issues no request at all.

A spec counts real HTTP hits on the weight files, so it goes red if
description becomes reachable from the listing path again through any
caller.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): filter the model gallery to entries that declare variants

The gallery is heading towards showing parent entries and hiding the
individual builds they reference, so a user sees one row per model
rather than six quantizations of it.

Adoption is a single entry today, so defaulting to that would leave a
one-row gallery. This ships the migration-phase inverse instead: the
default is untouched, and a toggle narrows the list to only the entries
that declare variants. It previews the end state and changes nothing
until someone asks for it.

The filter is server-side, next to term/tag/backend/capability and above
the pagination arithmetic. The listing paginates at 9 items, so
narrowing on the client would leave totalPages and availableModels
describing the unfiltered set and hand the user empty pages. It selects
on HasVariants(), which reads already-loaded metadata, so it issues no
variant probes.

The parameter is named has_variants after the listing field it selects
on, and is compared against "true" like the other boolean query params
(all_users, save_checkpoint), so has_variants=false reads as absent.
With it omitted the response is byte-for-byte what it was before.

The control is the shared Toggle component, matching the fitsFilter
toggle already on this page: same wrapper class, same icon and label
shape, same localStorage persistence. Unlike fitsFilter it resets to
page 1 on change, which a server-side filter has to do.

Stacking the toggle with a tag or backend filter easily yields nothing
while one entry declares variants, so the empty state now names the
variants filter as the cause rather than leaving a user to conclude the
gallery is broken.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ui): render gallery model descriptions as Markdown

Gallery descriptions are Markdown, but the React UI dumped them raw, so a
model whose description opens with an ATX heading showed a literal
"# Qwen3.6-27B [](https://chat.qwen.ai)" in the list.

Full-description areas now render through renderMarkdown (marked +
DOMPurify), matching how Backends.jsx and the Manage detail panels already
handle the same content:

  - Models.jsx expanded detail row
  - VoiceLibrary.jsx voice detail header

The truncated one-line previews must not render block Markdown: a leading
"#" would become an <h1> and wreck the row height and rhythm. They get a new
stripMarkdown() helper instead, which reduces Markdown to a single line of
readable plain text. It is used for the cell text and for the title tooltip,
since a tooltip full of "[](url)" is no better than a cell full of it:

  - Models.jsx gallery table description cell
  - Manage.jsx model and backend resource-row descriptions

stripMarkdown walks marked's lexer output rather than running regexes over
the source, so what it strips is by construction what renderMarkdown would
have rendered, and it needs no new dependency. Output lands in JSX text
nodes, so React escapes it; no new dangerouslySetInnerHTML beyond the two
full-description sites, both of which run DOMPurify.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(ui): strip Markdown from the backends table description cell

Commit b35d630cf fixed this for gallery models but left the Backends admin
page with the same asymmetry: its detail panel renders the description
through renderMarkdown, while the collapsed table row dumped the raw gallery
string into both the cell body and the title tooltip.

That is user-visible. 40 of the 949 entries in backend/index.yaml carry
Markdown - insightface uses inline code backticks, others use lists and
links - and backend descriptions also contain embedded newlines, so the
one-line cell showed literal syntax.

The cell now runs stripMarkdown over the description once and uses the
result for the text and the title, matching Models.jsx and the
ResourceRowDesc component in Manage.jsx. The '-' placeholder is preserved,
and now also fires when a description reduces to nothing after stripping.
The detail panel is untouched and no new dangerouslySetInnerHTML is
introduced: stripMarkdown output lands in a JSX text node, so React escapes
it.

Three Playwright specs cover it: a description with a heading, inline code
and a link renders as clean text with no literal syntax and no block
element in the cell, the title tooltip carries the same stripped text, and
a backend without a description still shows the placeholder.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* ui(models): polish the variant detail view and scope rendered Markdown

The gallery detail pane rendered every field through the same two-column
label/value row, including the description. Multi-paragraph prose in a value
cell ran eight rows tall at the top of the pane on a ~1200px measure, breaking
the grid's rhythm exactly where the eye enters. Move it into its own full-width
block above the table, capped at a 68ch measure, keeping the label.

Rendered Markdown had no scoped typography anywhere in the app, so a
description opening with `#` inherited the browser default 2em inside a 13px
surface while a `##` further down was indistinguishable from body text. Add a
reusable .markdown-body block mapping h1-h6, paragraphs, lists, links, code,
blockquotes, images and tables onto the existing type scale, and apply it to
every renderMarkdown() consumer: the models detail, the backends detail, both
Manage details and the voice library detail.

Rebalance the variants list so the name leads. Backend and size drop from
badge/secondary weight to muted metadata; the FITS badge goes entirely, since
it was true of nearly every row and so said nothing, while the variant that
does not fit keeps a warning badge and a dimmed name. AUTO-SELECTED stays
marked because it answers what a plain Install produces. Rows share the
parent's grid tracks via subgrid so name, backend, size and status line up
down the list instead of raggedly following name length.

Finally, make each variant row actionable. It looked like a list of choices
but was inert text, with per-variant install hidden behind the split-button
chevron elsewhere; each row is now a button onto the existing
handleInstall(modelId, variant) path, with hover, keyboard focus and a
disabled state while an install is in flight.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): collapse the listing to one row per model

The listing supported has_variants=true, which narrowed to entries that
DECLARE variants. With adoption at three entries that showed three rows,
which is useless; it was always a placeholder.

Replace it with the view that is actually useful: the deduplicated
gallery. Show every entry installable in its own right and nothing twice,
which means the parents plus every entry nobody references, and hide only
the builds another entry already offers as a variant, since those are
reachable through their parent.

The parameter is renamed to collapse_variants accordingly: the filter is
no longer a predicate on a row's own metadata but a view over the whole
gallery. Default stays off, so the response with the parameter absent is
unchanged.

VariantReferencedIDs never reports an entry that declares variants of its
own, so parents are always visible. That guarantees every hidden entry
has a visible entry offering it, and no chain can strand a row. Variant
resolution already refuses to install such a reference, but the listing
has to stay coherent in the presence of a gallery that has one rather
than silently swallowing entries. Self-references and dangling references
hide nothing.

The referenced set is computed over the whole gallery rather than over
what the other filters left, so an entry is hidden because a parent
offers it and never because of what the user searched for. The pass is
over metadata already in memory: it resolves nothing over the network and
triggers no variant description or size probe, so the listing's zero-probe
contract still holds.

The UI toggle keeps its behaviour (persistence, page reset, clear
filters) and becomes "One row per model", which says what the user gets.
Its localStorage key moves too, since the stored value meant a different
filter.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): show the collapsed model listing by default

The gallery listing is what a user reaches for to answer "what can I
install". Answering that with several rows for the same model, one per
build, makes the reader do the deduplication the collapsed view already
does, so the collapsed view is the one to land on.

The UI now asks for collapse_variants=true unless the toggle says
otherwise. The server default is deliberately untouched: a request with
the parameter absent still returns the full listing, because other API
clients depend on that response and collapsing it under them would be a
breaking change. Opting out omits the parameter rather than sending
false, so it asks for exactly the listing everyone else gets.

The stored preference changes vocabulary from '1'/'0' to 'on'/'off'. The
previous build wrote it from an effect that runs on mount, so a stored
'0' recorded that the page had been opened rather than that anyone chose
the expanded view, and honouring it would pin every earlier visitor to a
default they never picked. Only the new vocabulary counts as a choice;
a legacy '1' meant the collapsed view and is what the new default gives
anyway, so no earlier deliberate choice is lost.

Collapsing being the default also changes what the empty state may say
about it. An opted-into filter can be named as the cause of an empty
result; a default cannot, so the filters keep the top line and the
collapsed view drops to a hint below it, shown only once filters are
narrowing the set. For the same reason "Clear filters" now restores the
collapsed default instead of switching it off, and the toggle alone no
longer counts as a filter worth offering to clear.

The label stays "One row per model": it describes the view the user is
looking at rather than an action, so it reads the same whether it is
opted into or out of.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* gallery: group alternative builds of the same weights under variants

Sweep the gallery for entries that are alternative builds of the same
weights (different quantization, precision, or runtime format) and declare
them as variants of a single parent row, so the listing offers one row per
model instead of one row per quantization and the installer picks the
largest build that this host can actually run.

41 families over 95 entries, turning 54 entries into variants.

The parent is the bare-named entry wherever one exists, so nothing changes
about what any existing entry installs. Ranking already selects the largest
fitting build regardless of which entry is nominally the parent, so the
parent only decides the pathological case where nothing fits. For the ten
families that have no bare-named entry, the smallest build is the parent,
since that is the one that has to install when nothing fits.

Grouping was verified against the actual model filenames rather than the
entry names alone. Different parameter sizes, languages, finetunes, and
products that merely share a name prefix are left as separate rows: the
qwen3.6 APEX and pi-tune finetunes, the DFlash and MTP speculative-decoding
pairings, English-only versus multilingual Whisper, the QAT versus non-QAT
Gemma 4 weights, and the abliterated FLUX build are all distinct models.

Six parents define YAML anchors that other entries pull in with a merge key,
which would have handed their variants to every merging child. For the two
depth-anything anchors that would have made fourteen unrelated entries
advertise the base model's builds as their own. All 26 merging children
therefore carry an explicit empty variants list, which overrides the merged
key and is equivalent to the key being absent.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): rank model variants by host backend preference

Variant auto-selection filtered candidates by whether their backend can
run on the host, then ranked the survivors by size alone. The backend
never influenced the choice beyond that gate, so a Mac offered both an
MLX build and a llama.cpp build kept neither filtered and installed
whichever was larger, leaving the native accelerated runtime unused. The
same held for CUDA against CPU on NVIDIA and ROCm against Vulkan on AMD.

Rank by the host's backend preference between the fit tier and size: fit
stays a filter, preference decides among the builds the host can equally
hold, and size still separates builds on equally preferred runtimes.

The preference data stays in one declarative table in pkg/system, now
read by a prefix lookup instead of a switch, so adding a capability or
reordering one host's runtimes is a one-line edit and the gallery's
ranking code carries no per-backend branching. MLX joins the metal rule
ahead of metal itself, which is inert for the existing alias-resolution
consumer because no alias group holds a candidate named for mlx.

An unrecognised backend, an unrecognised capability and an absent
preference list all collapse to the previous size-only ordering rather
than erroring or dropping candidates.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): rank variants by engine name, not backend build tag

Variant auto-selection ranked candidates with
SystemState.BackendPreferenceTokens, but that function and the variant
ranker speak different vocabularies.

BackendPreferenceTokens returns BUILD TAGS ("cuda", "rocm", "sycl",
"vulkan", "metal", "cpu"). It exists to match installed backend build
directory names like "llama-cpp-cuda-12" during alias resolution in
ListSystemBackends. Variant ranking instead matches a gallery entry's
`backend:` value, which is an ENGINE NAME: "llama-cpp", "vllm",
"vllm-omni", "sglang", "mlx" and the rest. No engine name in
gallery/index.yaml contains "cuda", "rocm", "sycl" or "vulkan".

preferenceRank matches by substring, so on an NVIDIA host the tokens
[cuda, vulkan, cpu] matched neither "llama-cpp" nor "vllm", every
candidate scored identically and size alone decided. The NVIDIA, AMD,
Intel, darwin-x86 and vulkan rules were all inert. Only metal appeared
to work, and only because the token "mlx" happens to equal an engine
name. The mismatch does not error, it silently deletes the feature.

Separate the two vocabularies. backendBuildTagPreferenceRules keeps the
build tags and its original output for every capability, including
metal, whose "mlx" token is removed again; its alias-resolution consumer
is byte-identical to before. engineNamePreferenceRules is new, holds
engine names, and is read by the new EnginePreferenceTokens, which
HostResolveEnv wires into the renamed ResolveEnv.EnginePreference. Both
tables sit adjacent under one block comment naming each vocabulary and
each consumer, and share one lookup helper so their semantics cannot
drift.

On NVIDIA the order is vLLM, then SGLang, then llama-cpp: vLLM is the
throughput engine and a model published with a vLLM build is published
that way because that build is the one worth running. AMD and Intel get
the same order, since rocm and intel builds of both serving engines
ship. Metal prefers mlx over llama-cpp. Vulkan prefers llama-cpp, the
only LLM engine with a Vulkan build. darwin-x86 and unknown
capabilities are deliberately absent rather than guessed at, degrading
to the size-only ordering that predates preference.

preferenceRank stays generic and names no engine and no capability, so
adding a runtime remains a one-line table edit.

Specs pin the NVIDIA and metal rules through the live table and the real
HostResolveEnv wiring, so emptying the engine table or wiring the build
tag source back in both go red. A regression table asserts
BackendPreferenceTokens' original output per capability, and mirrored
locks assert neither table carries the other's vocabulary.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs: record that variant selection ranks by engine before size

A gallery entry can now declare variants, and selection ranks the builds a
host can run by engine preference before size. Nothing told a contributor
adding a backend that engineNamePreferenceRules exists, so a new engine would
silently rank below every known one and lose to whatever build happened to be
larger on hosts where it should have won.

Document the step where a backend is added, warn against the sibling
backendBuildTagPreferenceRules table (build tags, not engine names: the wrong
table matches nothing, scores every candidate equally and disables the
preference without erroring), and index it from AGENTS.md.

Fix the authoring and user docs, which still claimed the largest surviving
build wins. An author grouping builds under one entry has to be able to
predict what a user gets, and size alone no longer decides it.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(cli,mcp): describe variant auto-selection as preference before size

The CLI flag help and the install_model tool schema both still said
auto-selection takes the largest build that runs. Ranking now puts engine
preference ahead of size, so on NVIDIA a vLLM build wins over a larger
llama.cpp one. An assistant reading the old schema would tell users the
wrong thing.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): prefer llama.cpp over GPU serving engines on hosts with no GPU

engineNamePreferenceRules had no row for the "default" capability, which
getSystemCapabilities() returns both when no GPU is detected and when a GPU
is present but under the 4 GiB VRAM floor. A missing row yields an empty
preference list, which preferenceRank reads as "score everything equally",
collapsing variant selection to size alone.

That would be harmless if the hardware filter dropped GPU serving engines on
such a host, but it does not. IsBackendCompatible derives support from the
engine NAME, and "vllm" and "sglang" contain none of the darwin, cuda, rocm
or sycl tokens it keys on, so they fall through to its closing "return true".
A vLLM variant therefore survives on a CPU-only box and wins whenever its
build is the larger of the two on offer: the machine installs vLLM in
preference to llama.cpp.

darwin-x86 had the identical hole. It was documented as a deliberate omission
because nothing accelerates on an Intel Mac, which is true about acceleration
and wrong about consequence: with every engine tied, download size decides.

Add rows for both putting llama-cpp first. The GPU engines are enumerated
behind it rather than left unmatched: an unmatched engine already ranks below
every listed one, so llama.cpp would win either way, but unmatched engines
also tie with each other and let size decide among them. Naming them fixes
that order. MLX is left off the darwin-x86 row on purpose so it ranks last,
since IsBackendCompatible admits darwin-tokened engines on that capability
even though MLX needs Apple silicon.

Preference orders survivors and never filters, so a model published only as a
vLLM build is still installed on a host with no GPU; there is a spec for it.

Surveyed every other value getSystemCapabilities() can return. nvidia, amd,
intel and vulkan have rows; the l4t and cuda-refined values reach the nvidia
row by prefix; "apple" and "" cannot reach the vendor fallthrough because the
darwin and no-GPU branches return earlier. default and darwin-x86 were the
only live holes.

BackendPreferenceTokens and its build-tag table are untouched, and
preferenceRank stays generic, naming no engine and no capability.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* gallery: prefer speculative-decoding builds when they fit

Rank serving features between engine preference and size, so a host that can
hold a DFlash or MTP build of a model's weights installs it instead of the
plain build. Both answer faster for the same output, so whenever one survives
the filters there is no reason to take the plain build.

Precedence is now fit, then engine, then serving feature, then size. Engine
outranks the feature deliberately: a serving feature makes the right engine
faster, it does not make a wrong engine right, so a plain vLLM build still
beats a DFlash llama.cpp build on NVIDIA. Fit outranks both, and a drafter
pairing is strictly larger than the plain build, so the existing size filter
drops it on a host too small for it before this axis is consulted.

The order lives in a third preference table in pkg/system, alongside the build
tag and engine name tables. It is the odd one of the three: not keyed by
capability, because no hardware prefers a plain build over an equivalent
faster one, and matched against whole segments of a gallery ENTRY NAME rather
than as a substring of a backend value. Nothing on a gallery entry declares a
serving feature, and tags are not a usable substitute: gemma-4-e2b-it:sglang-mtp
carries an mtp tag while ornith-1.0-9b-mtp and qwen3.6-27b-nvfp4-mtp carry
none. Entry names are author-supplied free text, unlike the closed engine
vocabulary, so a short marker can turn up inside an unrelated word and whole
segment matching is what keeps smtp-assistant from ranking as an MTP build.
The block comment over the tables now documents all three together and states
what each is matched against; the ranking code names no feature, so adding one
stays a one-line edit to the table.

29c49203b rejected these entries as serving configurations rather than
alternative builds of the same weights. The definition is now "alternative ways
to serve the same model", which includes them, so regroup 14 entries under 12
parents. Judged by the files each entry points at: the qwen3.6, qwen3.5, qwen3
and deepseek pairings are the base GGUF plus a drafter, the gemma-4 QAT MTP
entries are the same QAT weights at a different quantization plus an MTP
drafter, and the two sglang MTP entries describe themselves as the same model
served with speculative decoding. Left separate: qwen3.6-27b-mtp-pi-tune, a
finetune with its own weights, and every entry whose base model LocalAI does
not ship as its own row, which is the whole Qwopus line plus gemmable-4-12b-mtp,
mimo-7b-mtp:sglang and qwen3.5-4b-dflash.

None of the twelve parents defines a YAML anchor, so no variants key can leak
through a merge key and no empty override was needed this time. The index was
edited by line insertion only.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test: check env restore errors in capability and variant specs

errcheck flagged ten unchecked os.Setenv and os.Unsetenv returns in the
specs added while the pre-commit hook was being skipped. Restoring an env
var is exactly the place a silent failure leaks state into the next spec,
so assert on it rather than suppressing the linter.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): make the mtp tag authoritative for serving-feature ranking

Variant auto-selection ranks survivors by fit, then engine, then serving
feature, then size. The serving-feature lookup read only whole alphanumeric
segments of a variant's entry name, because tags were inconsistent: every
dflash entry carried a dflash tag, but only 7 of 20 MTP entries carried an
mtp tag.

Tag the 13 untagged MTP entries, then teach the lookup to read tags as well
as names. A tag is now the authoritative signal and is compared whole and
case-insensitively, which is safe precisely because a tag is a deliberate
declaration rather than free text: there is no word-inside-a-word failure
mode, so the segment splitting the name half needs is unnecessary there.

The name check stays as a fallback rather than being replaced. Switching to
tags only would have regressed the six already-grouped entries on the day it
shipped, and would depend on tagging discipline that does not exist yet.

The lookup still names no feature, so adding one remains a one-line edit to
servingFeaturePreferenceTokens.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): make a declared tag the sole serving-feature signal

Variant auto-selection ranks survivors by fit, then engine, then serving
feature, then size. The serving-feature lookup recognised a speculative build
by either a declared tag or a whole segment of its entry name. Drop the name
half: a tag is now the only signal.

A name is author-supplied free text and a naming convention is not a contract,
so reading a marker out of one infers a capability nobody declared. The gallery
already had the failure in it: the four NVFP4 entries name MTP-bearing weights
while setting no option that enables speculative decoding, and being live
variants they were winning the feature axis without answering any faster.

overrides.options was considered as the replacement and rejected. It carries
spec_type:draft-mtp / spec_type:draft-dflash, which is what actually turns the
feature on, but that spelling is llama.cpp's config vocabulary: ds4 spells the
same feature mtp_path and sglang spells it speculative_algorithm in a
referenced config. Keying a cross-backend ranking decision on one backend's
option syntax would rank the other backends' builds as plain. Options are the
curation-time check instead, and never reach the selection logic.

With no fallback left, tag correctness is load bearing, so audit every entry
against the rule "tagged when the entry configures that feature, in whatever
vocabulary its backend uses". Three entries configure MTP untagged and gain the
tag (hy3, glm-5.2, qwythos-9b-claude-mythos-5-1m, all spec_type:draft-mtp with
no marker in their names). Four carry the tag while configuring nothing and
lose it: qwen3.6-27b-nvfp4-mtp, qwen3.6-35b-a3b-nvfp4-mtp,
qwopus3.6-27b-coder-mtp-nvfp4 and qwopus3.6-27b-v2-mtp-nvfp4, whose only option
is use_jinja:true. The dflash side was checked independently rather than assumed
consistent: all five dflash entries declare spec_type:draft-dflash and all five
are tagged, so it needed no edits.

Four entries keep a tag that a literal spec_type-only reading would strip,
because they configure MTP through a different backend: deepseek-v4-flash-q2-mtp
via ds4's mtp_path/mtp_draft, and the three sglang entries via
speculative_algorithm in their referenced configs. Stripping those would
contradict the reason spec_type was rejected as the signal and would demote four
genuinely faster builds to plain.

The index was edited by line insertion and deletion only, never round-tripped
through a serializer. A resolved-tag diff across all 1272 named entries, taken
after merge keys are applied, shows exactly these 7 changing and no entry
gaining or losing a tag through an anchor.

The two specs that pinned the name fallback are inverted rather than deleted,
since a name silently promoting a build is the regression worth guarding. The
whole-token guard survives on the tag path, where smtp must still not match mtp.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): make deepseek-v4-flash variant targets installable

Clicking install on deepseek-v4-flash failed with "invalid gallery model".
The parent entry is fine, but all four entries it was grouped with declared
neither url: nor config_file:, and applyModel needs one of the two to have
anything to build a config from. They carry urls: (plural), the informational
HuggingFace link list, which is a different field. None of the four was ever
independently installable, so grouping them routed a previously-working
install into a broken entry.

Give each the url: the parent already resolves through. virtual.yaml is a
no-op base, and applyModel passes overrides to InstallModel separately from
the fetched config, so backend: ds4, the parameters and the ssd/mtp options
all still land exactly as authored. This is the same pattern the parent and
many other GGUF entries in the index already use.

Add the lint rule that should have caught this. checkVariantReferences only
proved a target exists and is not itself a parent, which is structural
validity: an entry can exist, declare no variants, and still be
uninstallable. checkVariantTargetsInstallable mirrors applyModel's
precondition instead, and names the parent, the target and the missing
fields, because whoever hits it is reading a gallery entry and has no reason
to know applyModel exists.

The two index-driven resolution specs live in their own Ordered container:
an Ordered container stops at its first failure, so sharing one with the lint
rules let a lint breach skip them silently.

Nine further entries gallery-wide have the same defect and are unrelated to
variants, so they are broken installs that predate this branch. They are left
alone here rather than buried in a regression fix, and widening the rule to
cover every entry is deferred with them so the gate can ratchet up in one
step instead of needing a skip list.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(gallery): install entries with no url or config_file on an empty base

applyModel had three branches: fetch a base config from url:, build one from
an inline config_file:, or fail with "invalid gallery model". An entry
declaring neither is now installed on an empty base config, with overrides:
and files: supplying everything.

This is what the ~345 entries pointing at gallery/virtual.yaml were already
getting. That stub is five lines carrying name, description and license.
description and license are overwritten from the gallery entry immediately
after the fetch, and the name never reaches disk because InstallModel prefers
the install name. Crucially applyModel passes model.Overrides to InstallModel
as a separate argument rather than merging it into the fetched config, so
nothing an author writes depends on that base existing. The fetch bought a
round trip to GitHub and nothing else.

That makes f4ef80173 the wrong fix, so it is unwound. The four url: lines it
added to the deepseek-v4-flash variants are reverted: they are a pointless
network fetch now, and the family installs without them.

Relaxing the branch would hide a real authoring mistake, so a payload rule
replaces the base-config rule. An entry with no url, no config_file, no
overrides and no files installs nothing and would leave an empty model
directory while reporting success, so it is refused by name. The caller's
request counts toward the payload, because its overrides and files are merged
into the install exactly as the entry's own are. urls: (plural) is the
informational link list and does not count, which is what the four entries
that shipped broken had and why they were still uninstallable.

checkVariantTargetsInstallable asserted every variant target declares a url:
or a config_file:, which is no longer true and would now reject correct
authoring. checkEntriesInstallSomething pins what survives instead, and covers
every entry rather than only variant targets: the hazard is a half-written
stanza and a parent can be one as easily as a target. The old rule was scoped
to targets precisely because nine unrelated entries would have failed a
gallery-wide version; those nine are valid now, so the deferred ratchet
happens here in one step. 1280 entries, zero violations.

Those nine (aurore-reveil_koto-small-7b-it, lfm2-1.2b, the six liquidai_lfm2
entries and deepseek-v4-pro-q2-ssd) become installable for free. Each carries
overrides: and files:, and one of them is driven through the real install path
in a spec.

The no-fetch spec is paired rather than bare: an assertion that nothing was
fetched proves nothing unless something could have been, so a control runs the
same fixture with a url: pointing at a base config that is not there and
asserts the install fails. Only then does the identical fixture without the
url passing mean the read was skipped.

Follow-up, deliberately not here: the ~345 entries still naming virtual.yaml
can drop their url:. That is 345 index edits with their own risk, and mixing
them in would bury this change.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* ui(models): let search bypass the variant collapse, drop the toggle

The models page collapsed the gallery to one row per model by default and
offered a toggle to see every individual build. Because the collapse composed
with the search term, a build another entry offers as a variant could not be
found by typing its name, so the toggle was the only way to reach those builds
in the UI. A user who typed a name they knew existed got "no models found",
which reads as "that model does not exist".

Collapse is for browsing; search is for finding. An explicit search term now
bypasses the collapse in the listing handler, so a name lookup returns matching
entries whether or not a parent offers them. The term is trimmed once at the
top of the handler, so whitespace is neither a search nor a bypass; previously
an untrimmed blank term also narrowed the listing to whatever contained a
space. Tag and backend deliberately do not bypass: they refine a listing the
user is still reading rather than name an entry already known to exist.

That makes the toggle redundant, so it goes, along with its i18n strings in all
six locales, its localStorage persistence, its participation in "Clear filters"
and the empty-state hint telling users to turn it off. The hint was doubly
stale: it pointed at a control that no longer exists, and it was untrue exactly
when a user has a search term, since searching now sees every build. The page
always requests the collapsed listing.

The stored preference key is left inert rather than cleaned up: nothing reads
it, so a user who had the toggle off simply gets the collapsed view.

collapse_variants stays on the API, off by default, because other clients want
either view and the UI dropping its control is no reason to remove a working
parameter.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): give the models gallery filter form a deliberate structure

The filter area had accreted controls into one undifferentiated flow. The
"Fits in GPU" toggle and the backend select were direct children of
.filter-bar, the same wrapping container as the 18 taxonomy chips, so their
position was decided by how many chips happened to wrap at the current width
rather than by any layout intent. At narrow widths they were pushed past the
right edge of that container's horizontal scroll and became unreachable
entirely.

Restructure into three bands inside the house .filter-bar-group wrapper that
components/FilterBar.jsx already uses on Backends and the System tabs:

  1. query scope: search plus the backend select
  2. taxonomy: the chip row, alone, free to wrap
  3. refinements: fits-in-GPU and context size, under a hairline rule

The backend select leads the chips rather than trailing them because picking a
backend disables the use cases that backend cannot serve, so it gates the row
below it. Fits-in-GPU and context size share a band because they are one
control group: the context size is the length the VRAM estimate is computed at,
and that estimate is what the fits filter tests against.

Chips had no visible keyboard focus indicator. The global focus ring is wrapped
in :where(), so it carries the specificity of a bare :focus-visible, ties with
.filter-btn and loses on source order, leaving focused chips showing their
resting drop shadow. Restate the ring where it outranks both resting and hover.

Also: aria-pressed on the chips, a real label association and aria-valuetext on
the context slider (it steps over an index, so it announced "2"), disabled chip
styling moved off inline styles, a prefers-reduced-motion block for the chip
transition, and the hard-coded English "Context:" moved into all seven locales.

No behaviour change: same filters, same state, same requests. Page reset on
change, localStorage persistence and "Clear filters" verified unchanged.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): let the models recommendations panel fade into the background

The "Recommended for your hardware" strip rendered at full height on every
visit regardless of how many models were already installed, costing 186px at
1600px wide (287px at 1100px, where its cards wrapped to two rows) and pushing
the first gallery row to y=554 / y=703.

Make its prominence track how much the user still needs it. The panel now
defaults to a one-line summary once anything is installed, and both the
collapse choice and the existing dismissal persist:

  collapsed = explicit user choice, if one exists
            : installedCount > 0

The preference is three-valued on purpose. A boolean cannot tell "the user
expanded it" apart from "the user has never chosen", and those need opposite
handling when the installed count later crosses zero: someone who deliberately
opened the panel on an empty instance should not have it collapse out from
under them when their first model finishes installing.

Collapsed keeps the card, icon, title and a suggestion count, so the panel is
recovered by clicking what you are already looking at rather than by hunting.
Expanded is unchanged, because for a user with nothing installed it was never
the problem. Collapsed reclaims 145px at 1600 and 420, and 246px at 1100.

Models.jsx gains a statsLoaded flag: stats initializes to installed:0, so
reading it before the fetch resolves would render expanded and collapse a frame
later, which is exactly the layout shove this removes.

The dismissal key moves to the page's localai-models-* convention; the old
localai_rec_models_dismissed is still read, never written, so an existing
dismissal is honoured rather than resurrected by the rename.

Accessibility: the disclosure is a real button whose accessible name is the
visible title alone, with state on aria-expanded and aria-controls resolving in
both states, because the grid is hidden via the hidden attribute rather than
unmounted. That also keeps the four install buttons out of the tab order while
collapsed. The app's global focus ring applies; no per-component outline is
added, per the warning in App.css. Reveal animates opacity and transform only,
never height, and both it and the chevron rotation are disabled under
prefers-reduced-motion.

Only en had a recommended block, so the other six locales were falling back to
English for the whole panel. Translated the complete block rather than adding
one orphaned key to files that would still render the title in English.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(downloader): recover from a leftover .partial on non-HTTP URIs

An interrupted download leaves a `<file>.partial` behind. The partial
handling in DownloadFileWithContext gated resume on `err == nil &&
uri.LooksLikeHTTPURL()`, so for any URI that is not literally http(s)
the branch fell through to `else if !errors.Is(err, os.ErrNotExist)`,
which with a nil err is true. The download then failed with an error
wrapping nil:

  failed to check file ".../Ternary-Bonsai-27B-Q2_g64.gguf" existence: <nil>

Every gallery file URI uses `huggingface://`, so a single interrupted
download made that model permanently uninstallable until someone
deleted the partial by hand. The `<nil>` in the message compounded it
by pointing debugging at a filesystem failure that never happened.

Restructure the handling as an explicit switch over the four real
states: partial exists and is resumable, partial exists and is not
resumable (discard and restart, as already done for an HTTP server
without range support), no partial, and a genuine stat failure. The
error branch is now only reachable with a non-nil error, names the
path that was actually stat'd, and wraps with %w.

Discarding is required for correctness and not merely convenience: the
writer opens the partial with O_APPEND, so an un-resumed download would
concatenate a fresh body onto stale bytes.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): tell the models gallery's variant rows apart, and let browsing see every build

Both variant surfaces rendered name, backend and size. For two builds of one
model that is close to no information: a variant exists precisely because the
same weights are offered another way, so the backend usually matches and the
sizes usually land within a few hundred megabytes. Comparing
ternary-bonsai-27b-pq2 against ternary-bonsai-27b-q2-g64 meant reading two names
that differ by a suffix nobody has defined anywhere in the UI.

Report the quantization and the serving features on VariantView, and derive both
server-side from the referenced entry rather than parsing names in the browser,
so every client reads the same format out of the same file the installer will
hand the backend.

Quantization comes from overrides.parameters.model first, falling back to the
file list. That order is load bearing: entries routinely ship a vision tower
alongside the language model at a different quantization, so reading the file
list first reports the mmproj's format. Matching walks `-` and `.` delimited
segments right to left; `_` deliberately does not split, because it separates the
parts INSIDE a quant token and splitting on it reports Q4 for a Q4_K_M build. A
second, looser pass takes a segment's `_`-delimited tail, which catches the
gemma-4-E2B_q4_0-it.gguf style; it runs second so a precise match can never lose
to a fuzzy one further right in the name. An entry naming no format reports
nothing, which is the honest answer for a backend served from a directory of
weights.

Features are the same tag-against-vocabulary match servingFeatureRank already
ranks on, over the same host preference list. A build can therefore never be
shown as faster than one selection did not actually reward, nor rewarded without
being shown; a spec pins that agreement rather than trusting it.

The compact dropdown gets the quantization on its meta line and the bare feature
token. The detail row, which has the room, gets the quantization as its own
monospaced column so precision lines up down the list, and the feature spelled
out, because DFLASH names nothing to a user who has not met it. The referenced
entry's description stays out of both: the detail row already renders the
parent's prose above the table, and a second block per variant would push a
three-variant list past a screen to restate what the columns now say precisely.

The collapse toggle comes back. 462583f38 dropped it once search bypassed the
collapse, on the reasoning that nothing was unreachable any more. That holds for
finding a build whose name you know and does not hold for browsing: no sequence
of actions enumerated the 68 builds the default view hides. Collapse is for
browsing and search is for finding, and the toggle was the browsing half.

It goes in the refinements band 0d4823362 established, not back among the
taxonomy chips where its position depended on how many chips happened to wrap. It
leads that band because it decides how many rows the other two refine over, and
because unlike fits-in-GPU it is unconditional: a host with no GPU still browses.

The search bypass is untouched and re-checked by a spec in the toggle's default
state, since restoring the control must not restore the dead end it replaced. The
empty-state hint returns but only without a search term, because a term bypasses
the collapse and the hint would otherwise point at a control that cannot change
the result. The stored preference reads 'on'/'off' only: an older build wrote
'1'/'0' from an effect that ran on mount, so those record that the page was
opened, not that anyone chose a view.

Also fixes a latent flake it exposed. The collapse_variants spec compared whole
response bodies byte for byte, and the listing envelope carries live host
telemetry that drifts between two calls milliseconds apart, so it was asserting
on the machine's memory pressure. It now compares everything the parameter
governs -- the entries, their serialization and the paging -- and is green 25/25
where it was failing about one run in three.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): let the models gallery show a variant's full details

The variant list in an entry's expanded detail row says how the builds
differ: name, backend, quantization, size, and the auto-selected, base
and serving-feature markers. It cannot say what any one of them is. A
variant's own description, tags, license, source links and file list are
unreachable anywhere in the UI, because while the collapse is on a
variant has no gallery row of its own.

Give each variant row an info control that reveals its entry, rendered by
the same ModelDetail a top-level row gets, so a field added to the detail
view appears here too. variantData is withheld from the nested render: a
variant may declare variants of its own, and recursing would nest a
picker inside a picker two levels deep already.

An inline disclosure rather than a modal. The control sits inside a table
row that is already expanded, inside a variant list within that; a dialog
opened from there stacks a dismissal on a dismissal for a handful of
extra fields about the entry the user is already reading, and breaks the
page's own expand idiom. The third level is carried by an inset and a
left rule instead of another card.

The entry is fetched by exact name from the listing, once, on first use.
The listing already returns every field the detail view renders, and a
search term bypasses the variant collapse server-side, so no new endpoint
is needed and neither the listing nor DescribeVariants gains any work.
Expanding a row costs nothing; a variant nobody opens costs nothing. A
name the listing no longer returns is stated, not blanked: an empty panel
reads as a rendering fault rather than as a lookup that came back empty.

The control is a sibling of the install button, not a descendant, so
asking about a build can never install it.

The variant list keeps its content-sized columns via a trailing filler
track instead of max-content sizing, so the rows are unchanged while the
panel spanning them gets the pane width its file table needs.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(gallery): let search respect the collapse instead of switching it off

The models listing collapsed to one row per model, and an explicit search term
turned that off wholesale. Searching while collapsed therefore answered with the
individual builds a parent already offers, which are exactly the rows the view
the user asked for has no place for: typing "mtp" returned
qwen3.6-27b-nvfp4-mtp, a row that is invisible the moment the box is cleared.
The bypass was the right shape of fix for the wrong half of the problem. What a
search must not do is answer "no models found" for a build the gallery does
hold; that does not require abandoning the grouping the user asked for.

So the term is now matched against every entry either way, hidden builds
included, and the collapse decides how a match is reported rather than which
matches exist. Collapsing stops being a filter that drops rows and becomes a
substitution: a match on a build another entry offers is reported as that entry,
the one installable in its own right. Nothing becomes unfindable and nothing
comes back that the requested view cannot show.

Substitution happens after search, tag and backend, so every filter is judged
against the build that really carries the name, tag or backend rather than
against a parent that merely offers it; the other order would let backend=vllm
match a parent whose own backend is something else. The price is that the
surfaced row shows the parent's own metadata while the match was on a variant,
which is what grouping means, and the alternative is claiming the gallery holds
no such build. It happens before the count and the page math, so both describe
the rows actually handed out rather than the matches that produced them.

A parent already in the result keeps its own position and absorbs its matching
variants there, which is what leaves the browsing listing ordered exactly as it
was; a parent surfaced only by a variant takes the position of the first variant
that surfaced it. Either way it appears once, however many of its builds matched
and whether or not it matched itself. Search preserves gallery order rather than
scoring, so a surfaced parent has a real position rather than an invented one.

VariantParents never reports an entry that declares variants of its own, so a
parent is never itself hidden and one hop always lands on a visible row. The
handler follows exactly one anyway: refusing the second is what makes a gallery
the linter would have rejected terminate rather than loop.

The empty-state hint pointing at the toggle goes with it for every server-side
filter. Substitution means a match is always reported as some row, so the
collapse can no longer be why a term, a chip or a backend came back empty, and
naming it there sends the user to a control that cannot change the result. It
survives for the fits filter alone, which runs in the browser after the
substitution and judges the surfaced entry's own size: there the build that fits
really can be filtered out along with a parent that does not.

Searching a build's exact name while collapsed now answers with its parent, so
the result no longer contains the string the user typed. That is intended, and
the row is the one they can act on, but it is a real rough edge: nothing on the
row explains the connection. Closing it properly means reporting which variant
matched so the UI can say so, which the listing does not do today.

ResetGalleryModelCache is added for tests. The model cache is a package global
keyed by nothing, so a background refresh one spec triggers can land in the
middle of the next and answer it with the previous spec's gallery; the extra
specs here made that fail about one run in five. It waits for the in-flight
refresh to publish before clearing, since clearing alone only narrows the
window.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-20 18:43:02 +02:00
mudler's LocalAI [bot]
fb4c61d1c9 fix(distributed): configurable remote model-load timeout, and reap the load when it times out (#10948)
* fix(distributed): make the remote LoadModel deadline configurable

The router hardcoded a 5 minute gRPC deadline for the remote LoadModel
call. Staging finishes before the timer starts, so those five minutes
cover only the worker backend's own checkpoint load and pipeline init.
A cold load of meituan-longcat/LongCat-Video-Avatar-1.5 (~83 GB) on an
ARM64 Thor worker fails at exactly 302s with DeadlineExceeded while the
backend process is still making progress (CPU time accumulating, RSS
moving as weights are mapped), so the load was cut short rather than
wedged.

Add LOCALAI_NATS_MODEL_LOAD_TIMEOUT / --model-load-timeout mirroring the
existing backend-install timeout knob, defaulting to 5m so unset
clusters keep today's behaviour.

The cold-load hold ceiling (which bounds how long one load may hold the
per-model advisory lock) was derived from the install timeout alone, so
raising the load deadline past it would have been silently clipped.
Derive it from both budgets via ModelLoadCeilingFor:

    max(install + load + 5m staging margin, 25m)

With the defaults that is 15m + 5m + 5m = 25m, identical to the previous
constant, and the 25m floor means shrinking either budget can never
tighten the ceiling below what clusters relied on before.

Assisted-by: Claude:claude-opus-4-8 golangci-lint
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): reap the abandoned replica when a remote load times out

The gRPC deadline on the remote LoadModel call only cancels the client
side. A backend blocked in a synchronous weight load never observes its
cancelled handler context, so when scheduleAndLoad gave up it left the
worker loading with nobody waiting for the result.

Observed on an ARM64 Thor worker loading LongCat-Video-Avatar-1.5: the
client returned DeadlineExceeded at 302s, and the backend process was
still alive 30 minutes later having pulled ~57GB from HuggingFace. Every
retry stacked another multi-GB loader on the worker; they had to be
reaped by hand via POST /api/nodes/:id/models/unload.

Send backend.stop for the exact `modelID#replicaIndex` process key we
just abandoned. The exact key matters: a bare model ID stops every
replica on that node, including healthy ones serving traffic.

Only a deadline or cancellation triggers the reap. Any other LoadModel
failure is the backend answering, which means its handler returned and
the process is idle - stopping it there would discard a warm process and
its downloaded weights. The reap is best-effort and never replaces the
load error the caller is waiting on.

The `modelID#replicaIndex` format was already hand-rolled in two places
(the worker's buildProcessKey and pkg/model's log store). Rather than add
a third, export model.BackendProcessKey from pkg/model, the lowest common
dependency of both sides.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 golangci-lint

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-19 12:01:48 +02:00
LocalAI [bot]
c1a891662c refactor(settings): single declarative registry for runtime settings (fixes the #10845 bug class) (#10864)
* feat(settings): add declarative runtime-settings field registry

One fieldSpec row per RuntimeSettings field, with a reflection
completeness spec so a field added without a registry row is a red
test instead of a silently-dropped setting (the #10845 bug class).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

* refactor(settings): drive ToRuntimeSettings/ApplyRuntimeSettings from the field registry

Behavior-preserving: ~350 hand-written per-field lines become two loops
over runtimeSettingsFields, gated by a To->Apply->To round-trip spec.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

* feat(settings): baseline-driven startup merge for persisted runtime settings

ApplyRuntimeSettingsAtStartup compares the live config against
DefaultRuntimeBaseline (option-less-run defaults incl. kong-injected
flag defaults) instead of per-field == 0 guards. Fixes persisted
lru_eviction_max_retries, tracing_max_items, agent_job_retention_days,
memory_reclaimer_threshold, galleries and autoload flags being
silently ignored at boot.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

* fix(settings): registry-driven startup merge, applied before consumers

loadRuntimeSettingsFromFile becomes a thin wrapper over
ApplyRuntimeSettingsAtStartup and runs at the top of New(), before
model configs capture app-level defaults. WithThreads stops eagerly
resolving 0 so a persisted thread count survives restart while
LOCALAI_THREADS still wins (#10845); the physical-core fallback moves
after the merge.

Also: run.go now injects the memory-reclaimer threshold unconditionally
so the option-less boot matches DefaultRuntimeBaseline and a UI-saved
threshold survives restart.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

* refactor(settings): file watcher delegates to the registry merge; shared API-key merge

Manual edits to runtime_settings.json now behave like a boot-time load
(env still wins) instead of the inverted diverged-from-startup guard
that ignored most manual edits. MergeAPIKeys dedups env keys in one
place for the endpoint and the watcher.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

* docs(settings): document unified runtime-settings precedence

Document the single env/CLI > runtime_settings.json > defaults rule,
applied identically at boot, on POST /api/settings, and on manual file
edits, plus the two known limitations (default-valued env vars are
indistinguishable from unset; API-changed fields hot-apply on the next
restart only). Also add a completion debug log when the watcher applies
runtime_settings.json.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

* test(settings): reset the global VRAM cap leaked by the round-trip spec

The round-trip spec applies vram_budget=12GiB, whose post-loop hook
installs a process-global default cap; without a reset every spec
ordered after it runs under that phantom budget. Also drop a stale
enumeration in the ApplyRuntimeSettings doc comment.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude Code:claude-fable-5

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-16 22:39:59 +02:00
LocalAI [bot]
8cec22c3b7 feat(vram): per-node VRAM allocation budget (LOCALAI_VRAM_BUDGET) (#10833)
* feat(vram): add vrambudget primitive for per-node VRAM caps

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): apply default VRAM budget in xsysinfo aggregate getters

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): wire LOCALAI_VRAM_BUDGET flag to xsysinfo default budget

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): persist VRAM budget via runtime settings with live apply

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(vram): reset process-global VRAM budget after runtime-settings spec

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): add VRAM budget field to Settings page

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): store and enforce per-node VRAM budget in the node registry

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): apply per-node VRAM budget in router hardware defaults

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): report worker VRAM budget in node registration

The distributed worker now reports its operator-set VRAM budget string
(LOCALAI_VRAM_BUDGET) to the server on registration. The worker keeps
reporting RAW total/available VRAM and never sets the xsysinfo
process-global budget (that stays standalone-only); the server resolves
and enforces the budget uniformly (Task 6).

Also closes a Task 6 gap: on re-registration, a struct Updates zero-skips
an empty budget, so a worker that dropped LOCALAI_VRAM_BUDGET left the
stale cap in place. For non-admin-override nodes the budget columns are
now force-written (map Updates) even when empty, so removing the env var
clears the cap; admin overrides are preserved unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* style(vram): drop em dash from worker-clear comment

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): add node VRAM budget admin endpoints

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): add node VRAM budget control to the node UI

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(vram): expose set_node_vram_budget MCP admin tool

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(vram): document LOCALAI_VRAM_BUDGET and node VRAM budget UI

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(vram): avoid double-applying VRAM budget in GetResourceAggregateInfo

The GPU-branch aggregate returned by GetResourceInfo is sourced from
GetGPUAggregateInfo, which already caps total/free/used against the
process-wide VRAM budget. GetResourceAggregateInfo then applied the
budget a second time. For an absolute budget this is idempotent, but for
a percentage budget b.Apply resolves the ceiling as a fraction of its
input total, so a second pass yields P*(P*T) instead of P*T and distorts
UsagePercent (read by the memory reclaimer in pkg/model/watchdog.go).

Remove the redundant second application so the budget is applied exactly
once, against the raw physical totals, upstream in GetGPUAggregateInfo.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(vram): implement SetNodeVRAMBudget on mcp assistant test stub

The LocalAIClient interface gained SetNodeVRAMBudget; the stubClient in
core/http/endpoints/mcp used by the assistant tests is a separate
implementer and needs the method too (broke golangci-lint typecheck and
both test jobs).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-15 09:58:45 +02:00
LocalAI [bot]
bcc41219f7 feat: materialize Hugging Face model artifacts (#10825)
* feat(config): add model artifact source contract

Assisted-by: Codex:GPT-5 [Codex]

* feat(downloader): add authenticated raw-byte progress

Assisted-by: Codex:GPT-5 [Codex]

* feat(huggingface): resolve immutable snapshot manifests

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): add artifact storage primitives

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): materialize pinned Hugging Face snapshots

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): bind managed snapshots at runtime

Assisted-by: Codex:GPT-5 [Codex]

* feat(gallery): materialize model artifacts during install

Assisted-by: Codex:GPT-5 [Codex]

* feat(gallery): declare managed Hugging Face artifacts

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): preload managed model artifacts

Assisted-by: Codex:GPT-5 [Codex]

* fix(gallery): retain shared artifact caches on delete

Assisted-by: Codex:GPT-5 [Codex]

* feat(models): report artifact acquisition progress

Assisted-by: Codex:GPT-5 [Codex]

* refactor(backends): load managed models from ModelFile

Assisted-by: Codex:GPT-5 [Codex]

* refactor(backends): load staged speech model snapshots

Assisted-by: Codex:GPT-5 [Codex]

* refactor(backends): use staged snapshots in engine backends

Assisted-by: Codex:GPT-5 [Codex]

* test(distributed): cover staged artifact snapshots

Assisted-by: Codex:GPT-5 [Codex]

* docs: explain managed model artifacts

Assisted-by: Codex:GPT-5 [Codex]

* docs: add product design context

Assisted-by: Codex:GPT-5 [Codex]

* feat(ui): show model artifact download progress

Assisted-by: Codex:GPT-5 [Codex]

* Eagerly materialize Hugging Face artifacts

Materialize HF-backed model references as managed GGUF artifacts during load, with lazy download retained only as fallback.

Assisted-by: Codex:GPT-5 [shell]

* Refactor HF
  downloads through a shared executor

Assisted-by: Codex:GPT-5 [shell]

* drop

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-15 01:09:33 +02:00
LocalAI [bot]
97175f4b5a feat(model): debounce model loads after a failure to stop retry-storms (#10728)
A client that keeps polling a model whose load fails (e.g. a backend that
crashes deterministically on init) triggered a fresh backend start on
every request: request -> load -> crash in ~10s -> 500, repeat on the
next poll. Each attempt could leak GPU/CUDA state, and under
LOCALAI_SINGLE_ACTIVE_BACKEND it kept stealing the active slot from
healthy models. The existing loading-coalesce map only dedups
*concurrent* loads, so sequential polls were never covered.

Track load failures per modelID in ModelLoader. After a load fails,
refuse fresh load triggers for that model until a cooldown elapses,
returning a typed ModelLoadCooldownError that the HTTP layer maps to 503
with a Retry-After header. The cooldown grows exponentially per
consecutive failure (base, doubling, capped at 5m) and resets on a
successful load. The coalesced follower-retry of an in-flight burst
bypasses the gate, so a genuinely concurrent burst still gets its one
retry -- only new, independent triggers are refused, matching the
report's "refuse new load-triggers" wording.

Configurable via --model-load-failure-cooldown /
LOCALAI_MODEL_LOAD_FAILURE_COOLDOWN (default 10s, 0 disables), plumbed
through ApplicationConfig and applied unconditionally at startup.

Closes #10719


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-07 20:55:24 +00:00
weifanglab
a6cf67cc6b refactor: use slices.Contains to simplify code (#10702)
Signed-off-by: weifanglab <weifanglab@outlook.com>
2026-07-06 19:33:28 +02:00
LocalAI [bot]
461ae84732 fix(startup): scope generated-content and upload dirs to the current user (#10698)
The `--generated-content-path` and `--upload-path` defaults were the fixed
shared locations `/tmp/generated/content` and `/tmp/localai/upload`. On any
multi-user host these collide across accounts: macOS routes `/tmp` to the
shared `/private/tmp` for every user, so whichever account starts LocalAI
first creates the parent with 0750 perms and every other account then fails
startup with:

    unable to create ImageDir: "mkdir /tmp/generated/content: permission denied"
    unable to create UploadDir: "mkdir /tmp/localai/upload: permission denied"

The same happens on Linux once a stale root-owned `/tmp/generated` (e.g. from
a prior `sudo` run) is left behind. This bites the desktop launcher and any
app embedding the raw binary (Wingman, nib-desktop), which start `local-ai
run` with no path flags.

Default both paths under the OS temp dir (`os.TempDir()`, honoring `$TMPDIR`;
already per-user on macOS) namespaced by the current UID
(`TMPDIR/localai-<uid>/...`), so accounts never collide while the paths stay
ephemeral. Wired via new kong vars in main.go so every consumer of the raw
binary inherits the fix. All content subdirs (audio, images) derive from
`GeneratedContentDir`, so they are fixed transitively.

As defense in depth, the launcher also anchors these two paths under its own
per-user data directory (mirroring the #10610 fix for data/config), extracted
into a testable `BuildRunArgs`.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-06 12:53:25 +02:00
LocalAI [bot]
6eea3ef2ac fix(backends): make backend install ops idempotent unless forced (#10643)
* fix(backends): make backend install ops idempotent unless forced

POST /backends/apply hardcoded force=true through
LocalBackendManager.InstallBackend, so applying an already-installed
backend re-downloaded and re-extracted the whole artifact every time.
API clients that ensure a backend exists at startup paid a full OCI
image pull on every boot.

Backend install ops now default to non-forced — an installed, runnable
backend short-circuits (the orphaned-meta reinstall path in
InstallBackendFromGallery is preserved) — and reinstall stays available:

- ManagementOp gains a Force field; the local manager passes it through
  instead of hardcoding true.
- /backends/apply accepts an optional "force" boolean in the body.
- The React UI install route keeps forcing, since its button doubles as
  the explicit "Reinstall backend" action.

Distributed installs already behaved this way (workers skip when the
binary exists unless force is set); this aligns single-node behavior.

Assisted-by: Claude:claude-fable-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(backends): don't force-reinstall LOCALAI_EXTERNAL_BACKENDS on boot

The startup loop for LOCALAI_EXTERNAL_BACKENDS runs
InstallExternalBackend for each listed backend on every boot, and its
gallery-name path hardcoded force=true — so every start re-downloaded
and re-extracted each listed backend's OCI image even when it was
installed and runnable. Supervising apps that list several backends
paid several full OCI pulls per launch.

Give InstallExternalBackend an explicit force parameter (it only
affects the gallery-name fallback; URI installs always write) and pass:

- false from the boot loop and `local-ai backends install` (idempotent
  ensure — `backends upgrade` is the refresh path),
- op.Force from the local manager's external-URI op,
- the request's force on the worker install path and true on its
  upgrade path (behavior unchanged).

Assisted-by: Claude:claude-fable-5 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-07-02 19:16:29 +02:00
LocalAI [bot]
f3d829e2ef feat(distributed): add LOCALAI_DISTRIBUTED_SHARED_MODELS to skip staging on shared volumes (#10556) (#10566)
In distributed mode, even when the frontend and workers share the same
models directory via a shared volume mount, starting a model on a worker
re-staged (re-downloaded) it: stageModelFiles always uploads model files
into a tracking-key-namespaced subdir on the worker, and the staging probe
only checks that staged location, so a file already present on the shared
volume at the canonical path was never reused.

Add a config switch LOCALAI_DISTRIBUTED_SHARED_MODELS (default false). When
enabled, the operator asserts that all nodes mount the SAME models directory
at the SAME path, so staging is unnecessary: the frontend's absolute model
paths are already valid on the worker. In that mode stageModelFiles returns
the cloned opts unchanged without uploading, leaving the path fields pointing
at their canonical absolute paths so the worker loads them directly from the
shared volume.

The value is plumbed from DistributedConfig through SmartRouterOptions into
the SmartRouter. Docs and docker-compose.distributed.yaml updated.


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-28 01:23:07 +02:00
LocalAI [bot]
114eeaae81 feat(backends): make PreferDevelopmentBackends install the development image as primary (#10520)
When LOCALAI_PREFER_DEV_BACKENDS is set, install the -development image as the
primary backend URI (keeping the released image reachable as the first
fallback), instead of only reaching development as a download fallback when the
released image is missing. This lets an operator force backends built from the
development branch — e.g. to pick up a fix already on master before a release.

Threads PreferDevelopmentBackends through SystemState so InstallBackend can see
it, and reuses the same development-URI convention as the existing failure-path
fallback (released tag -> branch tag + dev suffix). The unexported developmentURI
helper is covered by a Ginkgo spec.

Assisted-by: Claude:claude-opus-4-8

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-26 07:42:45 +02:00
LocalAI [bot]
fe4f425fb5 fix: correct scheme/host on self-referential URLs behind an HTTPS reverse proxy (#10482) (#10504)
* fix(http): harden BaseURL proxy scheme/host detection

Split comma-separated X-Forwarded-Proto and honor the RFC 7239 Forwarded
header so generated links use https behind common reverse-proxy setups.

Refs #10482

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(http): honor explicit external base URL in BaseURL

When _external_base_url is set in the request context it dictates the
origin (scheme+host+port); the proxy path prefix is still appended.

Refs #10482

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(config): generalize LOCALAI_BASE_URL to ExternalBaseURL

LOCALAI_BASE_URL now sets a single instance-wide external base URL used
for OAuth callbacks and all self-referential links. A Pre middleware
stamps it into the request context for middleware.BaseURL.

Refs #10482

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs: document LOCALAI_BASE_URL and reverse-proxy headers

Refs #10482

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(http): cover parseForwarded edge cases; clarify base-url flag group

Adds direct unit coverage for quoted/malformed/multi-element Forwarded
headers and regroups the external base URL flag away from auth-only.

Refs #10482

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-25 08:10:59 +02:00
Richard Palethorpe
e1994579f8 fix(pii): load default detectors at startup + add LOCALAI_PII_DEFAULT_DETECTORS (#10474)
pii_default_detectors was applied to the live config only by a live
POST /api/settings (ApplyRuntimeSettings) — neither the startup loader nor
the config file watcher read it back. So after a restart the persisted
default detectors were dropped, and the cloud-proxy MITM listener (which
resolves each intercept host's detectors once at start via ResolvePIIPolicy)
came up with an empty set and forwarded intercepted traffic unredacted, even
though the MITM model had pii.enabled:true and the defaults were on disk.
Request-side default redaction broke the same way.

- startup.go: loadRuntimeSettingsFromFile now applies pii_default_detectors,
  before startMITMIfConfigured, with env > file precedence.
- config_file_watcher.go: apply pii_default_detectors on live file edits,
  matching the existing env-guard pattern used for the other fields.
- settings endpoint: rebuild the MITM listener when pii_default_detectors
  changes (its per-host detector map is frozen at listener start), not only
  on a mitm_listen change — so toggling a default detector takes effect on
  cloud-proxy traffic immediately.
- new LOCALAI_PII_DEFAULT_DETECTORS env var / CLI flag (WithPIIDefaultDetectors)
  so the default detector set can be pinned at boot for immutable deployments.

Assisted-by: Claude:claude-opus-4-8 Claude-Code

Signed-off-by: Richard Palethorpe <io@richiejp.com>
Co-authored-by: Ettore Di Giacinto <mudler@users.noreply.github.com>
2026-06-24 11:08:57 +02:00
Leoy
b50b1fe418 feat(watchdog): add size-aware LRU eviction mode (#9527)
* feat(watchdog): add size-aware LRU eviction mode

When the model count hits the LRU limit or the memory reclaimer fires,
evict the largest model by on-disk file size first rather than the
least-recently-used one.  For GGUF models the file size is a reliable
proxy for GPU/RAM footprint, so evicting the largest candidate maximises
freed memory per eviction round while keeping small utility models
(embeddings, classifiers, rerankers) resident.

Changes:
- `pkg/model/watchdog.go`: add `sizeAwareEviction` flag and
  `modelSizes map[string]int64` to `WatchDog`; sort candidates by
  `sizeBytes` desc (LRU time as tiebreaker) when the flag is set;
  add `RegisterModelSize`, `SetSizeAwareEviction`, `GetSizeAwareEviction`
- `pkg/model/watchdog_options.go`: add `WithSizeAwareEviction` option
- `pkg/model/initializers.go`: stat model file after load and call
  `RegisterModelSize` so size data is available before the first eviction
- `core/config/application_config.go`, `runtime_settings.go`: add
  `SizeAwareEviction` field and `WithSizeAwareEviction` app option;
  expose via `ToRuntimeSettings` / `ApplyRuntimeSettings` for the
  `POST /api/settings` live-reload path
- `core/cli/run.go`: add `--size-aware-eviction` flag /
  `LOCALAI_SIZE_AWARE_EVICTION` env var
- `core/application/startup.go`, `watchdog.go`: wire the new option
  through to `NewWatchDog`
- `pkg/model/watchdog_test.go`: 5 new specs — option enable, dynamic
  toggle, largest-first ordering, equal-size LRU tiebreaker, no-size
  fallback to LRU, and size-map cleanup on eviction

Closes #9375

Signed-off-by: supermario_leo <leo.stack@outlook.com>

* refactor(watchdog): use vram estimation scaffolding for model size

Replace the brittle os.Stat(modelFile) approach with a proper call to
pkg/vram, which handles multi-file models (DownloadFiles, MMProj) and
all weight file types, not just single GGUF files.

- Add estimateModelSizeBytes() in core/backend/options.go that collects
  all weight file URIs from the model config, resolves them to file://
  URIs, and calls vram.Estimate() with the shared DefaultCachedSizeResolver
  (15-min TTL cache avoids redundant stat calls on repeated loads)
- Thread the result through via a new WithModelSizeBytes() loader option
- In initializers.go, consume the pre-computed size instead of calling
  os.Stat; if no size was supplied (e.g. for external/router-dispatched
  models) the registration is simply skipped

Signed-off-by: supermario_leo <leo.stack@outlook.com>

* refactor(watchdog): use EstimateModel with HF fallback for size estimation

Switch estimateModelSizeBytes from calling vram.Estimate directly to the
unified vram.EstimateModel entry point, which adds automatic fallbacks:
file-based GGUF metadata → HF API → size string.

Also extract the HuggingFace repo ID from model URIs (huggingface://,
hf://, https://huggingface.co/ and org/model short-form) and pass it
as ModelEstimateInput.HFRepo, so models not yet downloaded locally can
still get a size estimate via the HF API.

Addresses @mudler's review feedback: "better to rely on EstimateModel
and pass by the HF URL of the model extracted from the URI".

Signed-off-by: supermario_leo <leo.stack@outlook.com>

* feat(webui): add Size-Aware Eviction toggle to settings page

The size-aware eviction setting was wired through the CLI flag and the
RuntimeSettings live-reload path (POST /api/settings) but had no handle
on the React settings page, so it could not be toggled from the UI.

Add a Size-Aware Eviction toggle to the Watchdog section, next to the
existing Force Eviction When Busy / LRU eviction handles. The settings
page loads and saves the whole RuntimeSettings object, so the new
size_aware_eviction key is picked up with no extra plumbing.

Addresses @mudler's review feedback: the application config setting
should land on the same UI settings page as the other handles.

Signed-off-by: supermario_leo <leo.stack@outlook.com>

---------

Signed-off-by: supermario_leo <leo.stack@outlook.com>
2026-06-21 17:17:04 +02:00
LocalAI [bot]
7637f8cf1b feat(distributed): declarative per-model scheduling via env/args (#10308)
* feat(distributed): add SpreadAll column and authoritative scheduling seeding

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): parse declarative model scheduling config (env/file)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): reconcile spread_all to one replica per matching node

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): wire LOCALAI_MODEL_SCHEDULING env/args and startup seeding

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): expose spread_all on the scheduling API endpoint

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): add spread-to-all-nodes mode to the scheduling UI

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): document LOCALAI_MODEL_SCHEDULING env/args

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): clarify replica modes and all-nodes spread in scheduling config

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-13 18:31:06 +02:00
LocalAI [bot]
b203b32e57 feat(realtime): make WebRTC ICE candidates configurable (#10231)
The /v1/realtime WebRTC handler created the peer connection with a bare
webrtc.Configuration and no SettingEngine, so pion gathered a host ICE
candidate for every local interface. Under Docker host networking that
includes bridge addresses (docker0/veth, 172.x) a remote browser cannot
route to; the call establishes on a good pair and then drops once ICE
consent freshness checks fail on the unreachable candidates.

Add two opt-in knobs, applied via a pion SettingEngine:
- LOCALAI_WEBRTC_NAT_1TO1_IPS: advertise these IPs as the host candidates
  (e.g. the host LAN IP)
- LOCALAI_WEBRTC_ICE_INTERFACES: restrict ICE gathering to these interfaces

Defaults are unchanged (empty => current all-interface behavior).

Assisted-by: Claude:claude-opus-4-8

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-09 22:28:03 +02:00
Ching
48a8ce98aa fix(cli): handle chat output errors (#10229)
Propagate terminal write errors from the chat prompt and explicitly ignore stream close errors during cleanup.

Update chat tests to assert response writer errors so errcheck passes without hiding failed writes.

Tests:
- go test -count=1 ./core/cli/chat
- go test -count=1 ./core/cli

Assisted-by: Codex:GPT-5

Signed-off-by: Ching Kao <0980124jim@gmail.com>
2026-06-09 19:10:24 +02:00
Ching
8344d1c865 feat(cli): add interactive chat mode (#10226)
Add an opt-in `local-ai chat` command for testing chat models directly from the terminal without manually sending curl requests.

The command connects to a running LocalAI server, lists available models through the existing OpenAI-compatible API, streams chat completions, and supports interactive commands such as `/models`, `/model`, `/clear`, and `/exit`.

Keep `local-ai run` focused on the server lifecycle so the web UI, API clients, and multiple chat terminals can coexist against the same server.

Document the new command and terminal workflow in the README and CLI docs.

Tests:
- go test -count=1 ./core/cli/chat
- go test -count=1 ./core/cli

Assisted-by: Codex:GPT-5

Signed-off-by: Ching Kao <0980124jim@gmail.com>
2026-06-09 14:58:44 +00:00
Richard Palethorpe
73385713ca feat(distributed): enforce registration token for worker file transfer (#10183)
The worker HTTP file-transfer server is authenticated by the registration
token via checkBearerToken, which fails open on an empty token: every
/v1/files, /v1/files-list and /v1/backend-logs request is then served
unauthenticated, granting read/write to the worker's models/staging/data
directories. The fail-open was also silent (the only auth log sat on the
unreachable reject branch), and the worker process never runs
DistributedConfig.Validate(), so the existing frontend warning did not
cover the component that exposes the server.

Mirror the NatsRequireAuth pattern: keep anonymous as the default but make
it loud and opt-in enforceable.

- Log a prominent warning when the file-transfer server starts tokenless.
- Add LOCALAI_REGISTRATION_REQUIRE_AUTH: DistributedConfig.Validate() errors
  on an empty token (frontend) and the worker refuses to start (fail-fast,
  before registration), so production can fail closed. Also satisfies the
  F-003 suggestion to fail Validate() on distributed + empty token.
- Add LOCALAI_DISTRIBUTED_REQUIRE_AUTH umbrella switch implying both
  RegistrationRequireAuth and NatsRequireAuth — one production knob locking
  down the registration/file-transfer layer and the NATS bus together; the
  granular flags remain available as single-layer overrides. Wired into the
  frontend, supervisor worker, and agent worker (vLLM worker has neither a
  NATS connection nor a file-transfer server, so it is left untouched).
- Document in distributed-mode.md (warning callout + flag tables).

Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-06-05 14:34:28 +02:00
LocalAI [bot]
27e63b9a78 feat(tts): support per-request instructions and params (#10172)
The OpenAI-compatible TTS endpoint accepts an `instructions` field, but it
was silently dropped at the HTTP->gRPC boundary: neither schema.TTSRequest
nor the gRPC TTSRequest proto carried it, so backends could only read such a
value from static YAML options (identical for every request). This blocked
per-line emotion/style and, for Qwen3-TTS VoiceDesign, limited a model config
to a single designed voice.

Plumb a generic per-request instruction string end to end, plus an optional
backend-specific params map:

- proto: add `optional string instructions` and `map<string,string> params`
  to TTSRequest.
- schema: add Instructions (maps OpenAI `instructions`) and Params (LocalAI
  extension) to schema.TTSRequest.
- core: thread both through ModelTTS/ModelTTSStream via a newTTSRequest helper
  that attaches instructions only when non-empty (so backends can fall back to
  YAML when unset); forward them from the /v1/audio/speech handler.
- qwen-tts: prefer the per-request instruction over the YAML `instruct` option
  (used by both mode detection and generation) and merge per-request params.
- chatterbox: merge per-request params (coerced to float/int/bool) over YAML
  options into generate() kwargs.

Fully backward compatible: empty instructions fall back to the YAML option and
backends that don't support style/voice instructions ignore the field.

Closes #10164


Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-04 11:45:02 +02:00
Richard Palethorpe
3a932a9803 feat(distributed): Add NATS JWT authentication and TLS/mTLS options (#10159)
* feat(distributed): NATS JWT auth, TLS/mTLS options, and e2e coverage

Mint per-node NATS user JWTs at registration when LOCALAI_NATS_ACCOUNT_SEED
is set, and connect workers with scoped credentials from the register response.
Add optional LOCALAI_NATS_TLS_CA/CERT/KEY for private CA and mTLS alongside
tls:// URLs, plus test-e2e-distributed and NatsJWT container e2e specs.

Document JWT setup (nats-auth-setup.sh) and TLS env vars in distributed-mode.

Assisted-by: Grok:grok grok-build
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(distributed): correct NATS JWT scoping and harden client auth

The JWT-auth path added in 46467cc7 had several gaps that fail silently
under LOCALAI_NATS_REQUIRE_AUTH:

- Agent-worker minted JWTs did not allow the subjects the agent worker
  actually subscribes to (jobs.mcp-ci.new and nodes.<id>.backend.stop),
  so MCP-CI jobs and backend-stop session cleanup were silently dropped.
  Scope the agent permission set to those subjects.
- NATS subscription permission violations were swallowed (Subscribe
  returned a live-but-dead subscription). Confirm subscriptions with a
  server round-trip so a denial surfaces synchronously, and log async
  permission errors.
- The backend worker connected anonymously when given a JWT without its
  paired seed; reject the unpaired credential instead.
- The documented service-user permissions in nats-auth-setup.sh omitted
  prefixcache.>, which the frontend publishes and subscribes; add it.

Also: add a credential-provider hook to the messaging client (consumed by
the follow-up credential-lifecycle change), drop the always-nil error from
NatsMessagingOptions, run go mod tidy (jwt/v2 and nkeys are now direct),
and gofmt the feature's files.

Tests: an agent-JWT e2e spec that connects to the enforcing NATS server
and exercises every subscription the agent worker makes, plus permission
allow-list coverage unit tests.

Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(distributed): acquire and auto-refresh worker NATS credentials

Workers fetched NATS credentials once at startup, which broke two cases
under JWT auth: a worker that registered while still pending admin
approval never received a minted JWT (it connected unauthenticated and
gave up), and a long-running worker's 24h JWT expired with no way to renew
it.

Introduce workerregistry.NATSCredentialManager, built on idempotent
re-registration (the frontend preserves the node row and mints a fresh JWT
each call):

- Acquire re-registers through admin approval until the node is approved
  and credentials are minted (or returns the first success when auth is
  not required, preserving anonymous-NATS behavior).
- RefreshLoop re-registers before the JWT expires (~75% of its lifetime),
  updating the credentials served to the connection.
- Both are bounded (default 100 attempts / consecutive failures) and
  return an error on exhaustion, so an unapprovable or unrenewable worker
  exits non-zero and surfaces the problem instead of hanging or drifting
  toward an expired credential.

The messaging client gains WithUserJWTProvider, fetching credentials on
each (re)connect so the connection transparently adopts a refreshed JWT
when the server expires the old one. RegisterFull exposes the approval
status and full response; Register delegates to it.

Both the backend worker and the agent worker are wired to this: explicit
env credentials are used as-is, minted credentials are acquired-with-wait
and refreshed, and a permanent refresh failure shuts the worker down so it
restarts and re-acquires.

Tests cover Acquire (wait-through-pending, bounded give-up, context
cancel), RefreshLoop (refresh-before-expiry, bounded failure, no-expiry
exit) and jwtExpiry decoding. Docs updated in distributed-mode.md.

Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

---------

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-06-03 19:43:56 +02:00
LocalAI [bot]
07f6c15a37 feat(ds4): layer-split distributed inference (#10098)
* feat(ds4): add standalone ds4-worker distributed worker binary

Add worker_main.c, a minimal standalone worker that owns a slice of the
model's transformer layers and serves activations over ds4's own TCP
transport via ds4_dist_run(). It links the same engine objects the
backend already builds (including ds4_distributed.o) and has NO
gRPC/protobuf dependency, so it builds even on hosts lacking protobuf/grpc
dev headers. Launched by `local-ai worker ds4-distributed`.

Wire the ds4-worker CMake target (mirrors grpc-server's object/GPU/native
handling) and have the Makefile copy + clean the binary alongside
grpc-server. Ignore the built ds4-worker artifact.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* feat(ds4): package ds4-worker alongside grpc-server

Copy the standalone ds4-worker binary into the backend package (Linux
package.sh) and the Darwin OCI tar (ds4-darwin.sh: both the explicit copy
and the otool dylib-bundling loop) so distributed workers ship with the
backend.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* fix(ds4): tighten ds4-worker integer arg validation to match upstream

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* feat(ds4): wire grpc-server as distributed coordinator

Add distributed COORDINATOR support to the ds4 backend's gRPC server.
Distributed inference is an engine backend: when LoadModel receives
'ds4_role:coordinator', the process populates ds4_engine_options.distributed
(role, layer slice, listen host/port) before ds4_engine_open, then the normal
ds4_session_* generation path runs transparently once the worker route covers
all layers.

- New LoadModel options: ds4_role, ds4_layers (START:END or START:output),
  ds4_listen (host:port), ds4_route_timeout.
- parse_layers_spec() maps the layer spec onto ds4_distributed_layers.
- wait_route_ready() blocks generation until
  ds4_session_distributed_route_ready() reports full coverage (or timeout),
  gating both Predict and PredictStream; returns UNAVAILABLE on timeout/error.
- No ds4_role => g_distributed stays false and wait_route_ready is a no-op,
  so single-node behavior is unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* fix(ds4): don't block Status during route wait; validate coordinator opts

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* feat(cli): add ds4-distributed worker exec helper

Add the ds4WorkerArgs helper plus findDS4Backend/DS4Distributed.Run that
resolve the ds4 backend via the gallery and exec the packaged ds4-worker
binary. Unlike worker_llamacpp.go, ds4 bundles its own dynamic loader
(lib/ld.so) for glibc compatibility, so when present we exec ds4-worker
through that loader with LD_LIBRARY_PATH=<backend>/lib, mirroring
backend/cpp/ds4/run.sh; otherwise we exec it directly.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* feat(cli): register the ds4-distributed worker subcommand

Wire DS4Distributed into the Worker kong command tree so
`local-ai worker ds4-distributed` is available.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* docs(ds4): document layer-split distributed inference

Add a ds4 section to the distributed-mode feature docs (coordinator
model YAML, manual worker command, layer-range semantics, the
'GGUF on every machine' requirement, coordinator-listens dial
direction vs llama.cpp) and a terse Distributed mode section to the
ds4 backend agent guide.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* test(ds4): opt-in hardware-gated distributed e2e spec

Add a self-contained, opt-in Ginkgo spec to the backend e2e suite that
spins a ds4 coordinator (via the packaged run.sh, loaded with
ds4_role/ds4_layers/ds4_listen options) plus a ds4-worker process for
the upper layers, then uses Eventually to assert a short successful
Predict once the layer route forms, before tearing the worker down.

Gated by BACKEND_TEST_DS4_DISTRIBUTED=1 (plus the existing
BACKEND_BINARY + BACKEND_TEST_MODEL_FILE and optional layer/listen/accel
knobs); compiles and skips cleanly with no env, hardware, or model.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* test(ds4): pass coordinator ctx to worker; lowercase error string

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* docs(ds4): note distributed transport is plaintext/unauthenticated

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* style(ds4): replace em dashes in distributed docs/agent/test per repo convention

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

* fix(ds4): link ds4-worker with the C++ driver for CUDA/Metal builds

The ds4-worker target is built from worker_main.c (C), so CMake linked it
with the C driver. The nvcc-built ds4_cuda.o (and Obj-C++ ds4_metal.o)
reference the C++ runtime, so the CUDA/Metal builds failed with undefined
libstdc++ symbols (std::__throw_length_error). The CPU build passed because
ds4_cpu.o is pure C. Force LINKER_LANGUAGE CXX so libstdc++ is linked.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-31 00:09:55 +02:00
LocalAI [bot]
a44bdb29d4 feat: prefix-cache-aware routing for distributed mode (#10071)
* feat(radixtree): generic prefix tree skeleton with longest-match

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(radixtree): Insert with path recency refresh and entry cap

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(radixtree): TTL idle-expiry and Evict sweep with branch pruning

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(radixtree): recency-weighted per-value Weight

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(radixtree): Remove all entries for a value

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(radixtree): race-free concurrency smoke test

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(radixtree): reclaim empty branches, RWMutex reads, TTL boundary, empty-key guard

Address review findings on the generic prefix tree:

- Extract a shared pruneWalk helper parameterized by a shouldClear
  predicate and use it from Evict, Remove, and the MaxEntries path.
  Previously evictOldestLocked cleared a victim's value but never
  removed the now value-less node or its childless ancestors, so
  internal nodes accumulated under sustained churn at the cap. The
  MaxEntries path now prunes the victim and its empty ancestors.
- DRY: pruneWalk replaces the duplicated logic in the former
  pruneLocked and Remove's inner closure.
- Switch Tree.mu to sync.RWMutex; LongestMatch, Weight and Len take
  the read lock (RLock) while Insert, Evict and Remove keep the write
  lock. Confirmed race-clean under go test -race.
- Document the strict greater-than TTL boundary on Options.TTL and
  expired: age exactly equal to TTL is still live.
- Guard Insert against an empty key (no-op): the root never holds a
  value.

Adds Ginkgo specs covering MaxEntries eviction, ancestor reclamation,
the no-growth-past-cap invariant, the TTL boundary, and empty-key
behavior for both Insert and LongestMatch.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): RoutePolicy enum with parse/resolve

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): Config with defaults and validation

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): deterministic xxhash prefix-chain extractor

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): pure filter-then-score replica selection

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): Provider interface and radix-tree-backed Index

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* style(prefixcache): gofmt policy enum comment alignment

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(prefixcache): head-first prefix chunking and hoist Weight out of sort

Address code-quality review findings in the prefixcache package.

Correctness: ExtractChain now chunks from absolute offset 0 with fixed
[0,W),[W,2W),... boundaries and caps the chain to the FIRST MaxDepth
head blocks. The previous tail-keeping logic shifted the byte offset by a
non-window amount once a conversation grew past MaxDepth*WindowBytes,
changing every hash each turn and silently breaking cross-turn
longest-prefix matching. The reusable KV/prefix cache lives at the head
of the prompt, so anchoring at offset 0 makes the chain a true
prefix-chain: P and P+suffix share their full leading overlap. Add a
regression spec proving cross-turn stability past the cap.

Performance: Index.Decide precomputes each candidate's Weight once
(decorate-sort-undecorate) instead of calling the O(tree size) Weight
inside the O(n log n) sort comparator. Behavior is unchanged.

Lint: encode prev with binary.LittleEndian.PutUint64 instead of a manual
byte loop, clearing the modernize rangeint finding.

Also add a concurrent Decide/Observe/Invalidate spec to exercise Index's
documented concurrency safety under go test -race.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(messaging): prefixcache observe/invalidate subjects and payloads

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): NATS sync publish/apply for observe and invalidate

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributedhdr): ctx carrier for prefix-hash chain

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributedhdr): PrefixChainHook indirection for backend-side chain build

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(backend): stash prompt prefix chain on ctx before distributed routing

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(backend): mirror modelID fallback for prefix-chain salt parity

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(nodes): scheduling config columns for prefix-cache routing

Add RoutePolicy and per-model balance/prefix-match override columns to
ModelSchedulingConfig and include them in the SetModelScheduling upsert
DoUpdates list so updates are not dropped on conflict.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(nodes): optional route preference in FindAndLockNodeWithModel

Add a RoutePreference type and a new pref parameter so the atomic
pick+lock+increment can be biased toward a preferred node without
weakening atomicity. A nil preference reproduces the previous ORDER BY
behavior exactly. Update the ModelRouter interface, both router.go call
sites (pass nil for now; Phase 5 builds the real preference), the test
doubles, and the distributed e2e caller.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): make Sync satisfy Provider with Evict

Sync.Observe now returns whether the local index treated the assignment as
new or extended, and Sync gains an Evict method that delegates to the wrapped
index. Together these let SmartRouter hold a single prefixcache.Provider that
broadcasts via NATS. Adds a compile-time Provider assertion and an
Evict-delegates behavioral test.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(nodes): prefix-cache-aware preference and observe in SmartRouter.Route

Add a PrefixProvider + PrefixConfig to SmartRouterOptions/SmartRouter (nil
keeps routing byte-for-byte the round-robin floor). On each request Route now
calls buildPreference: it reads the prompt prefix chain from ctx
(distributedhdr.PrefixChain), resolves the per-model policy/thresholds over
the global config, loads candidate replica in-flight via a new registry read
LoadedReplicaStats (deduped to one entry per node using the MIN in-flight
across that node's replicas), asks the provider to Decide, and runs
prefixcache.Select. The chosen node is passed as the RoutePreference to
FindAndLockNodeWithModel on all three pick paths (cache hit, locked re-pick,
cold scheduleAndLoad), and the served node is recorded via Observe only when
the resolved policy is prefix_cache so round-robin models never pollute the
tree.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(nodes): invalidate prefix-cache entries on unload and stale removal

UnloadModel and both staleness fall-through paths in Route (after a failed
gRPC probe and RemoveNodeModel) now call prefixProvider.Invalidate(model,
nodeID), guarded by a nil-provider check so the round-robin floor is
unchanged. At runtime the provider is the *prefixcache.Sync, so invalidations
also broadcast to peer frontends. Adds a test that a previously hot prefix no
longer Decides to a node after UnloadModel.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(prefixcache): rolling forced-disturb pressure counter

Add a concurrency-safe per-model rolling counter that tracks how many
times a request had a usable hot prefix match but the load guard forced
it off the warm node. Entries outside the window are dropped lazily on
Count so the backing slice stays bounded.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(nodes): autoscale on prefix-cache forced-disturb pressure

Wire the rolling forced-disturb counter into the SmartRouter and the
ReplicaReconciler.

Router: in buildPreference, after Decide + Select, record a forced-disturb
when a usable hot prefix match existed (d.HotNodeID != "" and
d.MatchRatio >= cfg.MinPrefixMatch) but Select chose a different node (or
nothing) because the load guard ruled the warm node out. This is the
scale-worthy signal: the cache-warm replica is saturated. It deliberately
does not fire for all-unique workloads (no hot match), avoiding
false-positive scale-ups. Pressure is optional on SmartRouterOptions; nil
keeps the path a no-op.

Reconciler: read the same Pressure instance in reconcileModel as an extra
scale-up reason, reusing the existing MaxReplicas + ClusterCapacityForModel
guards and the UnsatisfiableUntil cooldown that gates the whole method.
Pressure never overrides MaxReplicas and never force-evicts; a no-capacity
model does not spin. Window and threshold come from prefixcache.Config
(PressureWindow default 1m, PressureScaleThreshold default 1) and are
configurable via ReplicaReconcilerOptions.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(prefixcache): bound Pressure slice in Record; drop dead reconciler pressureWindow

Record now prunes entries older than the rolling window (the same prune
Count does), via a shared pruneLocked helper, so a model that takes
forced-disturb records but is never Counted (e.g. one with zero loaded
replicas the reconciler skips) no longer grows its backing slice
unbounded.

Also removes the dead pressureWindow struct field and the
ReplicaReconcilerOptions.PressureWindow option from the reconciler: they
were stored but never read (the window lives inside the *prefixcache.Pressure
instance). The scale block now reads pressure.Count once into a local.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(api): prefix-cache fields in scheduling endpoint DTO with validation

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): prefix-cache routing controls in node scheduling form

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): wire prefix-cache index, NATS sync, and config

Activates prefix-cache-aware routing in distributed mode. Builds the
prefixcache Index + NATS-backed Sync + Pressure counter, installs the
distributedhdr.PrefixChainHook so core/backend/llm.go attaches a prefix
chain per request, subscribes to prefixcache.observe/prefixcache.invalidate
to apply peers' events to the local index (no re-broadcast), threads
PrefixProvider/PrefixConfig/Pressure into the SmartRouter and
Pressure/PressureThreshold into the ReplicaReconciler, and runs a
background eviction ticker (every TTL/2) bound to the app context.

Enabled by default; --distributed-prefix-cache=false (LOCALAI_DISTRIBUTED_PREFIX_CACHE)
opts out and leaves the provider/pressure nil so routing stays round-robin.
--distributed-prefix-cache-ttl (LOCALAI_DISTRIBUTED_PREFIX_CACHE_TTL, default 5m)
controls entry idle-timeout and eviction cadence.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(nodes): round-robin-floor invariant for prefix-cache routing

Drives Select directly: a saturated hot node (in_flight 50 vs 0) is never
picked even with a perfect prefix match (round-robin floor holds), while a
balanced hot node within the load slack is reused.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(prefixcache): clear branch lint findings and em dashes

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): validate prefix-cache config at startup wiring

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* perf(radixtree): single-walk WeightsFor for batch value weights

Add Tree.WeightsFor(values, now) which computes the recency-weighted
weight for many values in a single O(N + len(values)) tree traversal,
versus calling Weight once per value (O(len(values) * N)). Consumers
that score K candidates against the tree under the read lock no longer
pay K full walks.

Extract the per-entry contribution math into an unexported helper shared
by both Weight and WeightsFor so the metric stays identical (DRY).
Weight's public behavior is unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(config): add ModelConfig.ModelID() single source of truth

The c.Name fallback to c.Model was duplicated in core/backend/options.go
(feeding model.WithModelID) and hand-copied into core/backend/llm.go (the
prefix-chain salt). These MUST agree or the prefix-cache salt diverges
silently from the id the model loader tracks. Consolidate both into a new
config.ModelConfig.ModelID() helper and call it from both sites. Behavior
is identical.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* perf(prefixcache): reuse one xxhash.Digest in ExtractChain

ExtractChain allocated a fresh xxhash.New() Digest per block (up to MaxDepth
per call) and grew the chain slice without preallocation. Reuse a single
Digest via Reset() before each block and preallocate the chain to
min(nBlocks, MaxDepth).

xxhash seed 0 is stateless, so Reset()+Write produces the byte-identical
value to a fresh New()+Write. Output hashes are unchanged, preserving the
cross-process determinism that peers rely on over NATS. Verified by capturing
ExtractChain output for the existing test inputs before and after the
refactor: identical. Existing extractor tests pass unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(prefixcache): drop hot match when matched node is not a candidate; weigh cold candidates in one walk

Index.Decide called radixtree.LongestMatch over the whole tree, so the
deepest match could be a node that is offline, unloaded, or simply not in
the passed candidate set. Honoring that as HotNodeID produced a false
forced-disturb signal upstream (buildPreference records pressure when
chosen != HotNodeID), making it look like a warm replica was load
saturated when it was actually absent.

Build the candidate set once and only set HotNodeID/MatchRatio when the
matched node is an actual candidate; otherwise fall back to cold
placement. A future refinement could ask the tree for the longest match
restricted to the candidate nodes (shallower-but-valid) instead of
dropping it.

Also replace the per-candidate tree.Weight call in the cold-order sort
with a single tree.WeightsFor walk, turning O(K*N) under the read lock
into O(N + K).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(prefixcache): remove Select's unreachable deterministic fallback

buildPreference always passes ColdOrder as a permutation of the full
candidate set, so the cold-order loop hits every eligible candidate. The
trailing best/bestIF scan was dead. Replace it with a plain "return """
and document that ColdOrder is guaranteed to cover all candidates, so ""
means none were eligible.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(nodes): fetch model scheduling config once per Route

GetModelScheduling was read three times per request - in
resolveSelectorCandidates, buildPreference, and nodeMatchesScheduling -
three DB round-trips for one row that is immutable for the life of the
request, and not a consistent snapshot. Fetch it once near the top of
Route and thread the *ModelSchedulingConfig (may be nil) into all three
helpers. scheduleNewModel keeps its own fetch since it runs outside the
Route snapshot. Behavior is identical for nil sched.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(autoscale): add Pressure.Reset to consume forced-disturb signal

Pressure.Count is non-draining (it prunes only by age), so a single burst
of forced-disturbs stays within the rolling window for the whole window and
keeps Count >= threshold on every reconciler tick. The reconciler will use
Reset to clear a model's events after acting on the signal so a fresh
scale-up requires fresh forced-disturbs to accumulate, rather than one burst
driving the model toward MaxReplicas.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(autoscale): at most one scale-up per reconcile tick, consume pressure

Two autoscale bugs:

1. Over-scaling: the pressure scale-up block read Pressure.Count but never
   consumed it. With a non-draining counter a single forced-disturb burst
   kept Count >= threshold across the whole window, firing scaleUp on every
   tick and pushing the model toward MaxReplicas off one transient burst.
   After a successful pressure-triggered scale-up the reconciler now calls
   Pressure.Reset to consume the signal.

2. Double scale-up in one tick: the all-replicas-busy block and the pressure
   block could both fire in the same reconcileModel pass, each calling
   scaleUp(+1) against the same `current` read once at the top, so a model
   that was both busy and over threshold scaled +2 and could overshoot
   MaxReplicas by one. A scaledUp flag now enforces at most one scaleUp(+1)
   per tick: the pressure block is skipped if the busy block already scaled,
   and scale-down is skipped in any tick that scaled up.

MinReplicas enforcement, UnsatisfiableUntil backoff, and capacity guards are
unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(nodes): replica-removed chokepoint hook for prefix-cache invalidation

Add SetReplicaRemovedHook to NodeRegistry and fire it from both
RemoveNodeModel and RemoveAllNodeModelReplicas after a successful
delete. This is the single chokepoint every replica-removal path funnels
through (router eviction, reconciler scale-down, probe reaper,
health-monitor node-down reap, RemoteUnloaderAdapter), so the
prefix-cache index can be invalidated by construction rather than wiring
each call site individually.

The hook is stored in an atomic.Pointer so the startup wiring (setter)
and the request/reconcile-time fire are race-free; it is nil-safe when
unset. GORM Delete reports no error for a no-op delete, so the hook also
fires when nothing was removed; the consumer's Invalidate(model, node)
is idempotent so this is harmless.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): invalidate prefix-cache on any replica removal via registry hook

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(prefixcache): single source of truth for threshold bounds

Extract ValidateThresholds into prefixcache/config.go so the per-model
override validation (nodes.go endpoint) and Config.Validate share one
implementation of the numeric bounds (min_prefix_match in [0,1],
balance_abs_threshold >= 0, balance_rel_threshold == 0-or->= 1) instead
of hard-coding them in two places. The route_policy allow-list stays
explicit (not ParsePolicy, which maps typos to Default).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(nodes): preserve prefix-cache settings on partial scheduling update

A scheduling POST that omitted route_policy/thresholds (e.g. a
min_replicas-only update) full-replaced every column and silently reset
the model's previously-configured prefix-cache settings to empty/zero.

Make the four prefix-cache request fields pointers so omitted is
distinguishable from explicit zero, and merge PATCH-style in
SetSchedulingEndpoint: a provided pointer wins, an omitted one preserves
the existing config value (zero default when none). Non-prefix fields
keep their full-replace PUT semantics. Validation now runs on the
resolved values via prefixcache.ValidateThresholds.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(prefixcache): make Invalidate a no-op for uncached models and skip empty broadcasts

A registry chokepoint fires Sync.Invalidate(model, nodeID) for every replica
removal of every model, including round-robin models that never used the
prefix cache. Index.Invalidate previously called tree(model), which lazily
created and permanently retained an empty radix tree for any model that ever
lost a replica, growing the trees map without bound. Sync.Invalidate also
published a NATS PrefixCacheInvalidateEvent on every call, amplifying no-op
removals across the cluster.

Index.Invalidate now looks the tree up read-only via existingTree and returns
without allocating when none exists. The Provider interface is unchanged;
Sync gates the broadcast through an optional invalidateExisting(bool) capability
type-asserted from the wrapped Index, falling back to the prior always-broadcast
behavior for other Provider implementations.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* perf(prefixcache): derive Decide candidacy from WeightsFor and skip trivial sort

WeightsFor already returns a map keyed by every requested candidate, so the
separate candidates set built to validate the hot match was redundant: a node
is a candidate iff it is a key in the weights map. Drop the extra map and gate
the hot-match check on weights membership. Also skip the sort when there is at
most one candidate, since the input order is already the cold order. Behavior
is unchanged.

Deferred follow-up: skipping the WeightsFor walk entirely when a hot match wins
would need lazy cross-file changes and is out of scope here.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(nodes): fire replica-removed hook on bulk node_models deletes; trim LoadedReplicaStats columns

Bulk node-scoped node_models deletes (Register re-register cleanup,
MarkOffline, MarkDraining, Deregister) removed rows directly without
firing the replica-removed hook, so the prefix-cache index kept
pointing at nodes whose models were gone. Capture the DISTINCT model
names before each bulk delete and fire fireReplicaRemoved once per
model after a successful delete, restoring the single-chokepoint
invariant for all removal paths. The pre-query is skipped when no hook
is set so the no-hook path stays cheap.

Also narrow LoadedReplicaStats to SELECT only node_id and in_flight
(the only fields the router consumer reads), dropping the JOIN-side
available_vram fetch and unused columns while keeping the
[]ReplicaCandidate return type unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(reconciler): consume autoscale signals only on a real scale-up

scaleUp was fire-and-forget (void) yet its callers unconditionally
consumed the pressure signal (Pressure.Reset) and the MinReplicas
hysteresis (ClearUnsatisfiable) right after calling it. If scaleUp
added nothing (ScheduleAndLoadModel errored, or no node could be
loaded) the saturated warm replica got no new replica AND its
accumulated forced-disturb history was wiped, forcing the signal to
re-accumulate over a full PressureWindow before the next attempt.

Make scaleUp return whether at least one replica was actually
scheduled, and gate the side effects on it:

- pressure block (2b): set scaledUp and call Pressure.Reset only on
  success; on failure preserve the signal so the next tick retries off
  the same accumulated pressure.
- busy-burst block (2): set scaledUp from the return value so a failed
  attempt does not suppress the pressure path or scale-down.
- MinReplicas block: call ClearUnsatisfiable only on success so a
  failed attempt does not reset the unsatisfiable counter.

All existing invariants (MaxReplicas, capacity gating,
UnsatisfiableUntil cooldown, at-most-one-scale-up-per-tick) are
preserved.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(nodes): drop router's redundant prefix-cache Invalidate calls

The NodeRegistry removal chokepoint (RemoveNodeModel /
RemoveAllNodeModelReplicas) now fires SetReplicaRemovedHook, which
invalidates the prefix-cache index. The router was also calling
prefixProvider.Invalidate explicitly right after each registry removal
on the two stale-replica health-probe fall-throughs in Route and in
UnloadModel, so every router-side eviction invalidated twice (double
tree-prune + double NATS broadcast).

Remove the three redundant explicit Invalidate calls and their empty
nil-guards. Each removed call sat immediately after a registry removal
that fires the hook, so invalidation is preserved via the chokepoint.
Decide/Observe usage is untouched.

Re-point the unit test (fake registry fires no hook) to assert the
removal chokepoint is exercised on unload instead of the router's
direct invalidation.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(prefixcache): broadcast invalidations unconditionally for cross-frontend coherence

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(prefixcache): reject TTL<=0 in Config.Validate (eviction ticker would panic)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(nodes): make capture+delete atomic in bulk node_models removal paths

MarkOffline, MarkDraining, and the Register re-register cleanup ran the
nodeModelNames SELECT and the bulk node_models DELETE as two separate
statements on r.db with no transaction. A SetNodeModel landing between
the two was deleted but its replica-removed hook never fired, leaving
the prefix-cache index pointing at a removed replica until TTL or
candidacy self-heal.

Wrap the capture and the delete in a single db.Transaction in each path
(mirroring how Deregister already does it). The captured model names are
collected into a slice declared outside the closure; the
replica-removed hook fires for each only after the transaction commits,
so a rollback never invalidates the index for a removal that did not
persist. The set of fired hooks now equals exactly the set of
node_models rows actually deleted, with no interleaving gap.

The status flip in MarkOffline/MarkDraining (setStatus) is a separate,
pre-existing operation and routing already filters non-healthy nodes, so
it stays outside the transaction; return contracts are unchanged.
Deregister was already correct and is untouched. The cheap-path skip
(no hook -> skip the SELECT) is preserved.

Adds a spec asserting MarkOffline fires hooks for exactly the rows it
deletes and leaves no node_models row behind (consistent snapshot).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(nodes): debug logging for prefix-cache routing decisions and observations

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(radixtree): match shared prefixes by valuing every node on insert

Insert recorded the value (node id) only on the final node of the key
chain, leaving every intermediate prefix node valueless. LongestMatch
returns the deepest node that hasValue, so two chains that share a
leading block but diverge in the tail never matched: only exact-repeat
queries hit. That broke the prefix-cache routing core use cases (shared
system prompt, multi-turn extension, volatile tail), all of which rely
on prefix matching rather than exact-repeat.

Set value/hasValue/lastSeen at every node along the chain so each
prefix-block node remembers the node id that served that prefix
(SGLang/vLLM-style). The deepest match wins, and the last writer owns a
shared prefix node (a recency heuristic: the most recent chain through a
block is the one most likely still warm). size now counts valued nodes,
which is the intended meaning.

Updated radixtree tests to the new semantics: deepest-prefix test uses
non-overlapping chains, a new test asserts last-writer-owns-shared-node,
Evict/Remove/MaxEntries expectations recomputed for per-prefix-node
counting, and a shared-prefix LongestMatch red test added. Added a
prefixcache Decide test proving a prefix-only query routes to the warm
node. No prefixcache .go logic changed.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(distributed): lock in prefix-cache routing behavior end to end

Add a DB-backed e2e spec that drives SmartRouter against a real
NodeRegistry (Postgres testcontainer) and the real prefixcache.Index
radix-tree provider, using a fake gRPC backend factory so no real
inference runs. Covers the five behaviors validated by hand:

1. Cold miss + observe: an unseen prefix chain cold-places and is recorded.
2. Hot-match affinity: the same chain returns to its warm node X.
3. Shared-prefix match: a divergent chain sharing X's leading prefix
   still routes to X (the radix-tree regression we fixed).
4. Negative control: an unrelated chain is a cold miss, not a false
   hot match on X.
5. Failover + invalidation: removing X's replica fires the registry
   chokepoint hook to invalidate the prefix entry, and the chain fails
   over to surviving node Y and re-homes there.

Replaces the need for manual docker-compose re-runs.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(prefixcache): make prefix-cache affinity replica-granular

Track prefix-cache affinity per loaded replica (a backend process with its
own KV cache) instead of per node, so multiple replicas of the same model on
one node each keep distinct affinity and a hot prefix routes back to the exact
replica that served it.

- radixtree: add RemoveFunc(pred) and reimplement Remove on top of it.
- prefixcache: introduce ReplicaKey{NodeID, Replica}; Index/Candidate/
  PrefixDecision/Select/Provider now key on ReplicaKey. Add InvalidateNode to
  drop every replica of a node; Invalidate drops one replica. Select returns
  (ReplicaKey, bool) and gains a deterministic least-in-flight eligible
  fallback (tiebreak NodeID then Replica).
- messaging: carry Replica on PrefixCacheObserveEvent and
  PrefixCacheInvalidateEvent (Replica < 0 means all replicas of the node).
- Sync delegates + broadcasts with replica; InvalidateNode broadcasts
  Replica=-1; ApplyInvalidate routes negative replica to InvalidateNode.

This is part 1 of 2; the registry/router/wiring consumers are updated
separately.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): make prefix-cache routing replica-granular

Wire the SmartRouter, NodeRegistry, and distributed startup to the
replica-keyed prefixcache API. Affinity is now tracked per replica
(each replica is a separate process with its own KV cache), so a prefix
served by (node,0) no longer leaks onto the same-node sibling (node,1).

- RoutePreference gains PreferredReplica; FindAndLockNodeWithModel locks
  the EXACT (node_id, replica_index) row, falling through to the default
  ORDER BY when that replica is not loaded.
- SetReplicaRemovedHook now carries replicaIndex; RemoveNodeModel fires
  the specific replica, RemoveAllNodeModelReplicas and the four bulk
  node-scoped deletes fire replica<0 (all replicas of the node).
- buildPreference builds one Candidate per loaded replica and locks the
  exact replica the policy chose; observePrefix records the served
  ReplicaKey at every call site.
- distributed.go routes the hook to InvalidateNode (replica<0) or
  Invalidate(key).
- Tests updated to the replica-keyed API plus new coverage: a hot prefix
  on (node,0) prefers replica 0 over the same-node sibling (router unit +
  e2e), and FindAndLock locks the exact preferred replica.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): derive prefix chain from messages for tokenizer-template models

Prefix-cache-aware routing built its prompt-prefix chain from the rendered
prompt string `s` in ModelInference. For models with
TemplateConfig.UseTokenizerTemplate the frontend never renders a prompt - the
backend tokenizes the structured messages itself - so `s` is empty, the chain
is empty, and routing silently falls back to round-robin. That covers the bulk
of modern chat models (qwen3, llama3, ...), so the feature effectively never
engaged for them.

Fall back to messagesPrefixSource(messages): a deterministic, prefix-stable
head-first serialization of the conversation (role + content per turn). Two
requests sharing a leading system prompt and early turns share a leading byte
prefix, which ExtractChain maps to a shared chain prefix - landing both on the
same cache-warm replica. The rendered `s` is still preferred when present
(higher fidelity for non-template models).

Found via the multi-replica-per-node e2e: zero "prefix-cache routing decision"
logs despite per-request Route calls, traced to the empty-chain guard.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): document prefix-cache routing roadmap

Add a routing-and-caching roadmap section to the distributed-mode guide,
linking the epic (#10063) and the follow-up issues (#10064-#10070) surfaced
from a survey of SGLang, vLLM production-stack, Ray Serve, llm-d, AIBrix, and
NVIDIA Dynamo.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-30 23:24:22 +02:00
Richard Palethorpe
12d1f3a697 security(http): refuse redirects on outbound clients via hardened pkg/httpclient (#10087)
LocalAI's outbound HTTP clients used Go's default redirect policy, which
follows up to 10 redirects. On a cross-host redirect Go forwards custom
request headers — including credential headers such as Anthropic's
x-api-key — to the redirect target (Go strips Authorization, Cookie and
WWW-Authenticate cross-host, but NOT arbitrary custom headers). An
attacker able to elicit a redirect from an upstream (a hijacked or
spoofed upstream, DNS trickery, or a malicious upstream_url) then
harvests the operator's provider API key.

This was first reported against the cloud-proxy / MITM PII path
(GHSA-3mj3-57v2-4636); the same class affects every other outbound
client. Rather than patch each call site, add pkg/httpclient as the one
sanctioned constructor for outbound HTTP and route everything through it.

pkg/httpclient:
  - New(...)             refuses redirects, TLS 1.2 floor, no body
                         deadline (streaming/SSE safe)
  - NewWithTimeout(d)    simple request/response calls
  - WithFollowRedirects  opt-in following that still strips credential
                         headers on any cross-host hop; different
                         scheme/host/port == different origin, guarding
                         the curl CVE-2022-27774 port-confusion class
  - WithTransport(rt)    keep a custom transport (IP-pin, HTTP/2, a
                         credential-injecting RoundTripper)
  - HardenedTransport()  base transport with the TLS floor + bounded setup
  - Harden(c)            apply the policy to a library-supplied *http.Client
  - NoRedirect           the CheckRedirect policy; wraps ErrRedirectBlocked

Lint: a forbidigo rule flags http.DefaultClient and http.Get/Post/
PostForm/Head, pointing at pkg/httpclient (.golangci.yml,
.agents/coding-style.md). forbidigo cannot match the &http.Client{}
composite literal without also flagging legitimate *http.Client type
references, so that form is enforced by review.

Migrates every non-test outbound call site across core/, pkg/, cmd/, and
the Go backend (backend/go/cloud-proxy). Credential-bearing and
internal-RPC clients refuse redirects; download / CDN / registry clients
use WithFollowRedirects so they keep working while stripping secrets
cross-host. The only credential-bearing client that follows redirects is
the gated-download path (pkg/downloader/uri.go), which strips the token
on the cross-host hop to the CDN. Hardening this closes, in passing:
  - MCP remote-server bearer token leaking via a redirect (the
    RoundTripper re-injected Authorization on every hop)
  - agent multimedia/webhook clients leaking user-supplied auth headers
  - cors_proxy following redirects, bypassing its SSRF IP-pin
  - downloader's authorized read path leaking the token cross-host

Fixes: GHSA-3mj3-57v2-4636 (cloud-proxy leaks operator provider API key
(x-api-key) to attacker host on cross-host redirect)
Reported-by: tonghuaroot
Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-05-30 12:04:10 +02:00
Richard Palethorpe
fbcd886a47 fix(application): stop backend processes synchronously on shutdown (#10058)
application.New wires a fire-and-forget goroutine that runs
StopAllGRPC + distributed.Shutdown when the app context is cancelled.
Callers (tests, CLI signal handler) cancel the context and then exit
immediately, so the test binary / process can terminate before that
goroutine kills the spawned backend children. go-processmanager sets no
Pdeathsig, so the orphans are reparented to init and survive — leaving
dozens of stray mock-backend processes after an e2e run.

Add Application.Shutdown(), which runs the same cleanup synchronously on
the caller's stack and is idempotent via sync.Once. The context-cancel
goroutine, the CLI signal handler, and the test suites all call it, so
cleanup is deterministic and the duplicated teardown logic collapses to
one place. The async goroutine remains as a safety net for callers that
forget; sync.Once dedupes the double call.

Wire e2e_suite_test and the two mock-backend Contexts in app_test to
call Shutdown in their AfterSuite/AfterEach.

Assisted-by: Claude:claude-opus-4-8 [Claude Code]

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-05-29 11:40:43 +02:00
LocalAI [bot]
06e777b75e feat(distributed): gated X-LocalAI-Node response header (middleware + wrapper) (#9976)
* feat(distributed): add per-request node ID context holder

Introduce pkg/distributedhdr, a leaf package carrying a per-request
*atomic.Value holder for the picked worker node ID from the
SmartRouter (core/services/nodes) up to the HTTP response writer
wrapper (core/http/middleware). Avoids the import cycle that a shared
key in either consumer would create.

Exposes NewHolder, WithHolder, Holder, Stamp, Load, Inherit. The
holder is atomic.Value so cross-goroutine publish from the router to
the response writer wrapper is race-clean.

Assisted-by: Claude:claude-opus-4-7[1m]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): add ExposeNodeHeader middleware + response writer wrapper

New ApplicationConfig.ExposeNodeHeader bool + --expose-node-header CLI
flag / LOCALAI_EXPOSE_NODE_HEADER env var (default off; the node ID
reveals internal topology and is opt-in).

The middleware creates a per-request *atomic.Value holder, attaches it
to c.Request().Context() via distributedhdr.WithHolder, and wraps
c.Response().Writer with a custom http.ResponseWriter that sets the
X-LocalAI-Node header on first Write / WriteHeader / Flush by reading
the holder. Implements http.Flusher, http.Hijacker, Unwrap so it
composes cleanly with Echo and http.NewResponseController.

request.go propagates the holder onto derived contexts via
distributedhdr.Inherit so the holder survives the correlation-ID
context replacement.

Unit + race-clean concurrency + integration specs.

Assisted-by: Claude:claude-opus-4-7[1m]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): stamp node ID in router and wire middleware to inference routes

ModelRouterAdapter.Route stamps the picked node ID into the
per-request holder via distributedhdr.Stamp(ctx, result.Node.ID) right
after replica selection.

Wire ExposeNodeHeader middleware to:
- OpenAI chat/completion/embeddings + audio transcriptions/speech + image generations/inpainting
- Anthropic /v1/messages
- Ollama /api/chat, /api/generate, /api/embed, /api/embeddings
- Jina /v1/rerank
- LocalAI /v1/vad

The middleware's wrapper reads the holder on first byte and sets the
X-LocalAI-Node response header before delegating to the underlying
writer. Per-request scope means no race under concurrent multi-replica
routing.

Assisted-by: Claude:claude-opus-4-7[1m]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): thread request context through backend Load + cover ctx propagation

Five non-OpenAI backend helpers were silently using app.Context instead
of the request context for the gRPC backend call: transcription, TTS,
image generation, rerank, VAD. Effect: distributedhdr.Stamp in the
router callback was a silent no-op for these paths, AND client
cancellation didn't propagate to in-flight inference.

Thread c.Request().Context() (or the equivalent input.Context after
the request middleware has installed the correlation-ID derived
context) through each helper and into ModelOptions via
model.WithContext(ctx). ImageGeneration's signature gains a leading
ctx parameter; in-tree callers (openai image, openai inpainting,
openai inpainting_test) are updated to match.

ModelEmbedding gains a leading ctx parameter for the same reason; the
openai and ollama embedding handlers pass the request context through.

chat_stream_workers.go defers the initial role=assistant chunk
emission until the first token callback so the wrapper's lazy
X-LocalAI-Node lookup against the loader runs AFTER ml.Load has
stamped the per-modelID node ID; semantically identical for clients
(role still arrives before any text).

Regression test core/backend/ctx_propagation_test.go pins ctx
propagation for all five helpers.

Docs updated to enumerate the full endpoint coverage of the
--expose-node-header flag.

Assisted-by: Claude:claude-opus-4-7[1m]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-25 10:51:48 +02:00
Richard Palethorpe
6a80e23733 feat(middleware): Model routing, PII filtering, Cloud model proxies (#9802)
Add a routing middleware stack and a cloud-proxy backend.

* cloud-proxy: a Go gRPC backend that forwards OpenAI- and
  Anthropic-shaped chat requests to upstream providers, with an
  optional translate mode (OpenAI request -> Anthropic /v1/messages
  -> OpenAI response) and full tool-calling support.

* routing: admission control, content-aware model routing
  (embedding cache + classifier + rerank + Arch-Router score),
  PII detection/redaction (regex + NER) with streaming filter and
  OpenAI/Anthropic adapters, and a per-user/per-key billing recorder
  backed by GORM or in-memory storage.

* middleware: UsageMiddleware records usage via the billing recorder,
  plus admission, route-model, usage-stamp and trace middlewares.

* observability: BackendTrace ring buffer stores full request bodies
  (capped), MITM proxy emits structured trace events, and router
  classifier decisions surface at /api/router/decide.

* gallery: Arch-Router-1.5B (Q4_K_M and Q8_0).

* UI: cloud-proxy model-editor fields, classifier system-prompt and
  score-normalization config, and a Traces page rendering request
  bodies.

Assisted-by: claude-code:claude-opus-4-7 [Read] [Edit] [Bash]

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-05-25 09:28:27 +02:00
LocalAI [bot]
a0f3e26245 fix(distributed): make admin backend installs resilient and observable (#9958)
* feat(distributed): add configurable NATS backend install/upgrade timeouts

Adds BackendInstallTimeout and BackendUpgradeTimeout to DistributedConfig
with 15m defaults, following the existing MCPToolTimeout / WorkerWaitTimeout
pattern. These will replace the hardcoded literals in RemoteUnloaderAdapter
so admin-driven backend installs across the cluster survive long OCI image
pulls that previously timed out at 3m.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* style(distributed): gofmt alignment after timeout fields

Re-aligns the Validate() negative-duration map and the Default* const
block so the new BackendInstall/UpgradeTimeout entries do not leave
the surrounding columns mis-padded.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(cli): surface LOCALAI_NATS_BACKEND_INSTALL_TIMEOUT and _UPGRADE_TIMEOUT

Parses the two new env vars on the run CLI and threads them through the
existing AppOption builder so DistributedConfig picks them up. Invalid
duration strings now fail loudly at startup rather than silently falling
back to the default.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): inject NATS install/upgrade timeouts into RemoteUnloaderAdapter

Removes the hardcoded 3m / 15m literals from RemoteUnloaderAdapter and
threads in DistributedConfig.BackendInstallTimeoutOrDefault() and
BackendUpgradeTimeoutOrDefault() at construction. Install now defaults
to 15m (was 3m); cold OCI image pulls on Jetson Wi-Fi routinely blew
past the old ceiling. Scripted messaging client captures the timeout
so tests can assert the configured value actually reaches the NATS
request.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): introduce galleryop.ErrWorkerStillInstalling sentinel

When the NATS request-reply for backend.install (or .upgrade) times out
the worker is almost always still pulling the OCI image. Wrap the timeout
in a typed sentinel so the manager above can distinguish "worker hung"
from "worker still working" and leave the pending_backend_ops row in
place for the reconciler to confirm via backend.list.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): treat NATS install timeout as in-progress, not failure

When a worker times out replying to backend.install but the install is
still running on the worker, enqueueAndDrainBackendOp now reports a
running_on_worker status and pushes NextRetryAt out by the install
timeout so the reconciler does not immediately re-fire another install
while the worker is still pulling the image. The pending_backend_ops
row stays in place for the next reconciler pass to confirm via
backend.list.

InstallBackend wraps the result in galleryop.ErrWorkerStillInstalling
so callers can branch (galleryop renders yellow in-progress instead of
red error). UpgradeBackend uses the same wrap.

Adds RemoteUnloaderAdapter.InstallTimeout() so the manager can push
NextRetryAt by the configured timeout without reaching into a private
field, and NodeRegistry.RecordPendingBackendOpInFlight as the soft
cousin of RecordPendingBackendOpFailure.

Also includes incidental gofmt-driven struct-field alignment in
registry.go on lines unrelated to the change (touched files are
re-formatted to canonical form per project policy).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): don't increment Attempts on in-flight install timeout

An in-flight timeout (worker still pulling the OCI image) is not a
failed attempt, it's a delayed one. Incrementing Attempts let
genuinely-progressing slow installs (e.g. 30 GB CUDA images on Wi-Fi)
trip the reconciler's maxPendingBackendOpAttempts cap and dead-letter
the queue row while the worker was still legitimately working.

RecordPendingBackendOpInFlight now only updates LastError and NextRetryAt.
Also documents "running_on_worker" in the NodeOpStatus.Status enum
comment so Task 6 implementers see the full surface.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(galleryop): surface ErrWorkerStillInstalling as non-error OpStatus

When the distributed backend manager returns an error that wraps
ErrWorkerStillInstalling, backendHandler now completes the op with a
"still installing in background" message rather than marking it as a
red failure. Admin UI sees a yellow in-progress state; reconciler
confirms completion on its next pass.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(distributed): end-to-end install-timeout-then-reconcile

Wires Task 1-6 end-to-end so any seam mismatch surfaces in CI rather
than during a real cluster install. NATS times out, the queue row
stays alive with running_on_worker status, the worker eventually
reports the backend installed via backend.list, the manager surfaces
it via ListBackends.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): document LOCALAI_NATS_BACKEND_INSTALL_TIMEOUT / _UPGRADE_TIMEOUT

Add the two new operator-tunable env vars to the Frontend Configuration
table in the distributed-mode docs. Explains the 15m default, when to
raise it (slow links pulling multi-GB OCI images), and the new
"still installing in background" admin-UI state when the round-trip
times out but the worker is still working.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): clear pending install rows when backend.list confirms

DistributedBackendManager.ListBackends now proactively clears
pending_backend_ops install rows whose (nodeID, backend) is reported
installed by backend.list. Operator UI updates immediately instead of
waiting up to installTimeout (default 15m) for the next reconciler
tick after NextRetryAt.

Only install rows are cleared; upgrade and delete intents are not
satisfied by presence in backend.list and continue to drain through
their normal reconciler paths.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(messaging): add BackendInstallProgressEvent wire type and subject

New NATS subject nodes.<nodeID>.backend.install.<opID>.progress lets the
worker publish transient progress events (file, current/total bytes,
percentage, phase) while a long-running install pulls its OCI image.
BackendInstallRequest gains an optional OpID field so the worker knows
which subject to publish on.

Transient pub/sub (not JetStream): the install reply remains ground
truth for success/failure; dropped progress events are tolerable.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* style(messaging): drop em-dash from BackendInstallProgress test comment

Per project convention (no em-dashes anywhere). Comment substance is
unchanged.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): worker publishes debounced install progress over NATS

When BackendInstallRequest.OpID is set, the worker's backend.install
handler wires a debounced publisher (250ms window) into the gallery
download callback. Each tick becomes a BackendInstallProgressEvent on
nodes.<nodeID>.backend.install.<opID>.progress; the publisher always
emits a final event on Flush so the UI sees the terminal percentage.

Old masters that do not set OpID continue to run silent installs: no
behavior change for them. Lock ordering: the publisher releases its
mutex before calling messaging.Publish so a slow network never stalls
the install loop.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): RemoteUnloaderAdapter subscribes to install progress

InstallBackend gains opID + onProgress parameters. When both are set,
the adapter subscribes to nodes.<nodeID>.backend.install.<opID>.progress
BEFORE publishing the install request, decodes each message into the
caller's onProgress callback in a goroutine (so a slow callback never
stalls the NATS reader thread), and unsubscribes after RequestJSON
returns.

When onProgress is nil OR opID is empty (the reconciler retry path),
subscription is skipped entirely - silent installs cost nothing extra.

Subscribe failure is logged at Warn and the install proceeds without
progress streaming; the NATS round-trip still owns terminal status.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): forward backend install progress into galleryop OpStatus

DistributedBackendManager.InstallBackend now passes the gallery op ID
and a progress bridge into the adapter call. Each
BackendInstallProgressEvent from the worker becomes a
galleryop.ProgressCallback tick - which the existing backendHandler
already turns into OpStatus.UpdateStatus, so the admin UI/SSE polling
sees per-byte progress for distributed installs without any UI-side
change.

UpgradeBackend is intentionally left silent for now: its wire request
(BackendUpgradeRequest) does not carry OpID, and rolling-update
fallback is the rarer path. Will be picked up in a follow-up if the
worker upgrade path also gets a progress channel.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(distributed): InstallBackend tolerates silent (pre-Phase-2) workers

A worker on pre-Phase-2 code never publishes progress events. The new
master subscribes optimistically; this spec pins that a silent worker
still produces a green install with no progressCb ticks. The install
reply is the source of truth for terminal state; the progress stream
is a best-effort UX enrichment.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): document install progress streaming

Note the new nodes.<nodeID>.backend.install.<opID>.progress subject and
the silent-worker compatibility behavior so operators know to expect
real-time progress and what happens on a mixed-version cluster.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): note progress-event ordering trade-off in InstallBackend

Document near the goroutine dispatch why ordering at the consumer is
best-effort, why it rarely matters in practice (worker debounce >>
goroutine jitter), and what a future hardening pass would look like
(Seq field + stale-by-seq drop). Stops the next reader from accidentally
"fixing" the goroutine pool away.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(galleryop): add NodeProgress + OpStatus.Nodes for per-node breakdown

Adds the data model the UI needs to render an expandable per-node
breakdown of a fanned-out backend install. NodeProgress carries node
identity (ID + name), per-node status (queued / running_on_worker /
success / error / downloading), the current file + bytes + percentage
from the Phase 2 progress stream, and any per-node error.

OpStatus.Nodes is the slice the /api/operations handler will surface
in a follow-up.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(galleryop): UpdateNodeProgress merges per-node ticks by NodeID

GalleryService.UpdateNodeProgress(opID, nodeID, np) merges a NodeProgress
into OpStatus.Nodes (keyed by NodeID, no duplicates) and mirrors the
latest tick into the aggregate Progress / FileName /
DownloadedFileSize / TotalFileSize fields so the legacy single-bar
OperationsBar view keeps working unchanged alongside the new per-node
breakdown.

Concurrent-safe via the existing g.Mutex.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): write per-node OpStatus entries during install fan-out

DistributedBackendManager now accepts a nodeProgressSink and feeds it
two streams:

1. enqueueAndDrainBackendOp emits a per-node terminal entry on each
   status it appends to BackendOpResult (queued, success, error,
   running_on_worker). The opID is threaded through the function so
   the sink gets the right gallery op identity.

2. The install apply closure fans each BackendInstallProgressEvent
   into the sink as a downloading entry, alongside the legacy
   progressCb path so the aggregate single-bar view stays correct.

Production wiring passes the GalleryService (which implements
UpdateNodeProgress via Task 2) as the sink. Single-node tests pass
nil. DeleteBackend and UpgradeBackend pass an empty opID so the
sink path no-ops for ops that aren't gallery-tracked the same way
as Install.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(operations): expose per-node breakdown on /api/operations

When an operation's OpStatus has Nodes entries (populated by the
Phase 4 progress sink wiring), surface them as a "nodes" array on the
/api/operations response, sorted by node_name for stable rendering.

Backward compatible: legacy clients ignore the field; ops without any
node entries (single-node mode, model installs) omit the array entirely
thanks to the empty-slice guard.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(ui): per-node breakdown in OperationsBar

When an install op fans out to more than one worker, the operations
bar now shows a "N nodes" chevron that expands into a per-node list.
Each row carries the node's status (color-coded pill), the current
file being downloaded, byte counts, percentage, and a thin per-node
progress bar. Yellow "Worker busy" pill marks running_on_worker
status with a tooltip explaining the NATS round-trip timed out but
the worker is still installing in the background.

Backward compatible: ops without a nodes field (legacy or single-node
mode) render as before. State for expand/collapse is local to the
component, keyed by jobID/id - reload starts collapsed.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): document per-node breakdown in the operations bar

Adds a short subsection covering the expandable "N nodes" chevron in
the OperationsBar admin UI, the meaning of each status pill, and
how it relates to the /api/operations nodes array.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(galleryop): UpdateStatus preserves Nodes when caller sends none

Real-world bug surfaced by the Phase 4 multi-worker smoke test: the
nodes[] array in /api/operations flickered between a single node at a
time on a 2-worker install. Root cause: the Phase 2 progress bridge
also calls the legacy progressCb -> UpdateStatus(&OpStatus{...}) on
every tick. UpdateStatus then overwrote the entire status pointer,
wiping the Nodes slice that UpdateNodeProgress had just merged in.

Fix: in UpdateStatus, if the incoming op has an empty Nodes slice,
carry forward the previous status's Nodes before storing. Callers
that explicitly populate Nodes still win (their slice replaces the
prior one, no merge across the two code paths).

Two regression specs added pinning both directions of the contract.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* docs(distributed): strip implementation details from user-facing docs

Trim the new install/upgrade timeout rows and the install-progress
sections to focus on what the operator sees and tunes. Drops:

- the NATS subject names and pub/sub mechanics
- "round-trip" / reconciler / backend.list jargon
- /api/operations polling cadence
- "pre-2026-05-22" version references

Reframes the breakdown text around the admin UI (Operations Bar,
chevron, status pills, "Worker busy" tooltip). Implementation context
lives in the agent notes and code comments.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(config): move DistributedConfig.Validate flag names to constants

The negative-duration check map was a wall of literal kebab-case
strings that had to stay in sync with the kong-derived CLI flag names
manually. Move them to a Flag* const block alongside the existing
Default* block so a rename of either the Go field or the CLI naming
convention forces a compile error rather than silent drift.

Sole consumer today is Validate; the constants are exported so future
operator-facing surfaces (e.g. error messages on other validation
paths) can reference them by name instead of repeating the literals.

Tests pin both the literal values (so a future "let's just rename
this" doesn't accidentally regress the CLI flag) and the negative-
duration error message for the new BackendInstall / BackendUpgrade
fields.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(distributed): extract NodeStatus and Phase enums to constants

Sweep for the same literal-string-as-identifier pattern called out on
the Validate flag names: the per-node install status enum
("queued" | "downloading" | "running_on_worker" | "success" | "error")
appeared as raw literals across managers_distributed.go (10+ sites,
including 3 separate `n.Status == "running_on_worker"` checks),
operation.go, and the test suite. Same shape for the Phase enum
("resolving" | "downloading" | "extracting" | "starting") in the
worker-side progress publisher.

Promote both to exported const blocks:

- galleryop.NodeStatus{Queued,Downloading,RunningOnWorker,Success,Error}
  shared between galleryop.NodeProgress.Status (the wire field) and
  nodes.NodeOpStatus.Status (the in-process per-node summary)
- messaging.Phase{Resolving,Downloading,Extracting,Starting}
  shared between the worker publisher and any future consumer that
  needs to switch on phase

Tests pin both the literal values (so a future "let's just rename" doesn't
silently change the JSON wire) and use the constants in setup (so the
producer side stays drift-protected). Wire-format assertions on the
/api/operations JSON output keep their literals deliberately, so the
constant value can never silently diverge from what the UI receives.

Out of scope for this PR (separate cleanup): the finetune and
quantization job-status enums have the same anti-pattern with 14+
literal sites each, but predate this PR's work.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-23 12:35:44 +02:00
LocalAI [bot]
61bf34ea2f fix(traces): cap captured body size to keep admin Traces UI responsive (#9946)
The trace middleware buffered the full request and response bodies for every
JSON exchange. With a chatty agent-pool RAG workload, /embeddings responses
(large vector arrays) accumulated to tens of MB in the in-memory buffer; the
admin Traces page would then download and parse 40+ MB on every load and on
every 5s auto-refresh, locking the UI in a loading state.

Add LOCALAI_TRACING_MAX_BODY_BYTES (default 64 KiB) that caps each captured
body. The full payload still flows through to the real client; only the
trace copy is bounded. Exchanges record body_truncated and original
body_bytes so the dashboard can show that truncation happened. The cap is
configurable via env, CLI, and runtime_settings.json.

Also unblock recovery: the Traces page now keeps the Clear button enabled
while loading, since "buffer too large to render" is exactly when the user
needs to clear it.


Assisted-by: Claude:claude-opus-4-7

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-22 15:29:24 +02:00
Richard Palethorpe
5d0b549049 feat(gallery): verify backend OCI images with keyless cosign (#9823)
* feat(gallery): verify backend OCI images with keyless cosign

Close a trust gap where a registry compromise or MITM could silently
replace a backend image: the gallery YAML tells LocalAI which image to
pull, but until now nothing verified the bytes came from our CI.

Consumer (pkg/oci/cosignverify):
- New package using sigstore-go to verify keyless-cosign signatures.
- OCI 1.1 referrers API + new bundle format (no legacy :tag.sig).
- Policy fields: Issuer / IssuerRegex / Identity / IdentityRegex /
  NotBefore. NotBefore is the revocation lever — keyless Fulcio certs
  are ephemeral so revocation is policy-side; advancing not_before in
  the gallery YAML invalidates every signature predating the cutoff.
- TUF trusted root cached process-wide so N backends from one gallery
  do 1 fetch, not N.

Plumbing:
- pkg/downloader: ImageVerifier interface + WithImageVerifier option
  threaded through DownloadFileWithContext. Verification runs between
  oci.GetImage and oci.ExtractOCIImage, with digest pinning via
  pinnedImageRef to close the TOCTOU window. Skips the verifier's HEAD
  when the ref is already digest-pinned.
- core/config: Gallery.Verification YAML block.
- core/gallery: backendDownloadOptions builds the verifier from the
  policy; applied on initial URI, mirrors, and tag fallbacks.
- core/gallery/upgrade: the upgrade path now routes through the same
  options builder. A regression Ginkgo spec pins this contract —
  without it, UpgradeBackend silently bypassed verification.
- core/cli: --require-backend-integrity (LOCALAI_REQUIRE_BACKEND_INTEGRITY)
  escalates missing policy / empty SHA256 from warn to hard-fail.

Producer (.github/workflows/backend_merge.yml):
- id-token: write at job scope (PR-fork-safe via existing event gate).
- sigstore/cosign-installer@v3 pinned to v2.4.1.
- After each docker buildx imagetools create, resolve the manifest
  list digest and run cosign sign --recursive --new-bundle-format
  --registry-referrers-mode=oci-1-1 against repo@digest. --recursive
  signs the index and every per-arch entry, matching how the consumer
  resolves a tag to a platform-specific manifest before verifying.

Rollout: backend/index.yaml has no `verification:` block yet, so this
PR is backward-compatible — installs proceed with a warning until the
gallery is populated. Strict mode is opt-in.

Assisted-by: claude-code:claude-opus-4-7 [Bash] [Edit] [Read] [Write] [WebSearch] [WebFetch]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* refactor(gallery): plumb RequireBackendIntegrity through config instead of env

The previous implementation re-exported the --require-backend-integrity
CLI flag into LOCALAI_REQUIRE_BACKEND_INTEGRITY via os.Setenv, then
re-read it in core/gallery via os.Getenv. This leaked process state
into the gallery package and made the flag impossible to override
per-call or test without touching the env.

Add RequireBackendIntegrity to ApplicationConfig (with a matching
WithRequireBackendIntegrity AppOption) and thread the bool through
every install/upgrade path: InstallBackend, InstallBackendFromGallery,
UpgradeBackend, InstallModelFromGallery, InstallExternalBackend,
ApplyGalleryFromString/File, startup.InstallModels. Worker subcommands
gain the same env-bound flag on WorkerFlags so distributed-worker
installs honor it consistently with the worker daemon path.

Add a forbidigo lint rule against os.Getenv / os.LookupEnv / os.Environ
to keep the env-leak pattern from creeping back. Existing offenders
(p2p, config loaders, etc.) are baseline-grandfathered by the existing
new-from-merge-base: origin/master setting; targeted path exclusions
cover the legitimate cases — kong CLI entry points, backend
subprocesses, system capability probes, gRPC AUTH_TOKEN inheritance,
test gating env vars.

Assisted-by: claude-code:claude-opus-4-7
Signed-off-by: Richard Palethorpe <io@richiejp.com>

---------

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-05-18 08:02:20 +02:00
Richard Palethorpe
670259ce43 chore: Security hardening (#9719)
* fix(http): close 0.0.0.0/[::] SSRF bypass in /api/cors-proxy

The CORS proxy carried its own private-network blocklist (RFC 1918 + a
handful of IPv6 ranges) instead of using the same classification as
pkg/utils/urlfetch.go. The hand-rolled list missed 0.0.0.0/8 and ::/128,
both of which Linux routes to localhost — so any user with FeatureMCP
(default-on for new users) could reach LocalAI's own listener and any
other service bound to 0.0.0.0:port via:

  GET /api/cors-proxy?url=http://0.0.0.0:8080/...
  GET /api/cors-proxy?url=http://[::]:8080/...

Replace the custom check with utils.IsPublicIP (Go stdlib IsLoopback /
IsLinkLocalUnicast / IsPrivate / IsUnspecified, plus IPv4-mapped IPv6
unmasking) and add an upfront hostname rejection for localhost, *.local,
and the cloud metadata aliases so split-horizon DNS can't paper over the
IP check.

The IP-pinning DialContext is unchanged: the validated IP from the
single resolution is reused for the connection, so DNS rebinding still
cannot swap a public answer for a private one between validate and dial.

Regression tests cover 0.0.0.0, 0.0.0.0:PORT, [::], ::ffff:127.0.0.1,
::ffff:10.0.0.1, file://, gopher://, ftp://, localhost, 127.0.0.1,
10.0.0.1, 169.254.169.254, metadata.google.internal.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(downloader): verify SHA before promoting temp file to final path

DownloadFileWithContext renamed the .partial file to its final name
*before* checking the streamed SHA, so a hash mismatch returned an
error but left the tampered file at filePath. Subsequent code that
operated on filePath (a backend launcher, a YAML loader, a re-download
that finds the file already present and skips) would consume the
attacker-supplied bytes.

Reorder: verify the streamed hash first, remove the .partial on
mismatch, then rename. The streamed hash is computed during io.Copy
so no second read is needed.

While here, raise the empty-SHA case from a Debug log to a Warn so
"this download had no integrity check" is visible at the default log
level. Backend installs currently pass through with no digest; the
warning makes that footprint observable without changing behaviour.

Regression test asserts os.IsNotExist on the destination after a
deliberate SHA mismatch.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(auth): require email_verified for OIDC admin promotion

extractOIDCUserInfo read the ID token's "email" claim but never
inspected "email_verified". With LOCALAI_ADMIN_EMAIL set, an attacker
who could register on the configured OIDC IdP under that email (some
IdPs accept self-supplied unverified emails) inherited admin role:

  - first login:  AssignRole(tx, email, adminEmail) → RoleAdmin
  - re-login:     MaybePromote(db, user, adminEmail) → flip to RoleAdmin

Add EmailVerified to oauthUserInfo, parse email_verified from the OIDC
claims (default false on absence so an IdP that omits the claim cannot
short-circuit the gate), and substitute "" for the role-decision email
when verified=false via emailForRoleDecision. The user record still
stores the unverified email for display.

GitHub's path defaults EmailVerified=true: GitHub only returns a public
profile email after verification, and fetchGitHubPrimaryEmail explicitly
filters to Verified=true.

Regression tests cover both the helper contract and integration with
AssignRole, including the bootstrap "first user" branch that would
otherwise mask the gate.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(cli): refuse public bind when no auth backend is configured

When neither an auth DB nor a static API key is set, the auth
middleware passes every request through. That is fine for a developer
laptop, a home LAN, or a Tailnet — the network itself is the trust
boundary. It is not fine on a public IP, where every model install,
settings change, and admin endpoint becomes reachable from the
internet.

Refuse to start in that exact configuration. Loopback, RFC 1918,
RFC 4193 ULA, link-local, and RFC 6598 CGNAT (Tailscale's default
range) all count as trusted; wildcard binds (`:port`, `0.0.0.0`,
`[::]`) are accepted only when every host interface is in one of those
ranges. Hostnames are resolved and treated as trusted only when every
answer is.

A new --allow-insecure-public-bind / LOCALAI_ALLOW_INSECURE_PUBLIC_BIND
flag opts out for deployments that gate access externally (a reverse
proxy enforcing auth, a mesh ACL, etc.). The error message lists this
plus the three constructive alternatives (bind a private interface,
enable --auth, set --api-keys).

The interface enumeration goes through a package-level interfaceAddrsFn
var so tests can simulate cloud-VM, home-LAN, Tailscale-only, and
enumeration-failure topologies without poking at the real network
stack.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* test(http): regression-test the localai_assistant admin gate

ChatEndpoint already rejects metadata.localai_assistant=true from a
non-admin caller, but the gate was open-coded inline with no direct
test coverage. The chat route is FeatureChat-gated (default-on), and
the assistant's in-process MCP server can install/delete models and
edit configs — the wrong handler change would silently turn the LLM
into a confused deputy.

Extract the gate into requireAssistantAccess(c, authEnabled) and pin
its behaviour: auth disabled is a no-op, unauthenticated is 403,
RoleUser is 403, RoleAdmin and the synthetic legacy-key admin are
admitted.

No behaviour change in the production path.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* test(http): assert every API route is auth-classified

The auth middleware classifies path prefixes (/api/, /v1/, /models/,
etc.) as protected and treats anything else as a static-asset
passthrough. A new endpoint shipped under a brand-new prefix — or a
new path that simply isn't on the prefix allowlist — would be
reachable anonymously.

Walk every route registered by API() with auth enabled and a fresh
in-memory database (no users, no keys), and assert each API-prefixed
route returns 401 / 404 / 405 to an anonymous request. Public surfaces
(/api/auth/*, /api/branding, /api/node/* token-authenticated routes,
/healthz, branding asset server, generated-content server, static
assets) are explicit allowlist entries with comments justifying them.

Build-tagged 'auth' so it runs against the SQLite-backed auth DB
(matches the existing auth suite).

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* test(http): pin agent endpoint per-user isolation contract

agents.go's getUserID / effectiveUserID / canImpersonateUser /
wantsAllUsers helpers are the single trust boundary for cross-user
access on agent, agent-jobs, collections, and skills routes. A
regression there is the difference between "regular user reads their
own data" and "regular user reads anyone's data via ?user_id=victim".

Lock in the contract:
  - effectiveUserID ignores ?user_id= for unauthenticated and RoleUser
  - effectiveUserID honours it for RoleAdmin and ProviderAgentWorker
  - wantsAllUsers requires admin AND the literal "true" string
  - canImpersonateUser is admin OR agent-worker, never plain RoleUser

No production change — this commit only adds tests.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(downloader): drop redundant stat in removePartialFile

The stat-then-remove pattern is a TOCTOU window and a wasted syscall —
os.Remove already returns ErrNotExist for the missing-file case, so trust
that and treat it as a no-op.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(http): redact secrets from trace buffer and distribution-token logs

The /api/traces buffer captured Authorization, Cookie, Set-Cookie, and
API-key headers verbatim from every request when tracing was enabled. The
endpoint is admin-only but the buffer is reachable via any heap-style
introspection and the captured tokens otherwise outlive the request.
Strip those header values at capture time. Body redaction is left to a
follow-up — the prompts are usually the operator's own and JSON-walking
is invasive.

Distribution tokens were also logged in plaintext from
core/explorer/discovery.go; logs forward to syslog/journald and outlive
the token. Redact those to a short prefix/suffix instead.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(auth): rate-limit OAuth callbacks separately from password endpoints

The shared 5/min/IP limit on auth endpoints is right for password-style
flows but too tight for OAuth callbacks: corporate SSO funnels many real
users through one outbound IP and would trip the limit. Add a separate
60/min/IP limiter for /api/auth/{github,oidc}/callback so callbacks are
bounded against floods without breaking shared-IP deployments.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(gallery): verify backend tarball sha256 when set in gallery entry

GalleryBackend gained an optional sha256 field; the install path now
threads it through to the existing downloader hash-verify (which already
streams, verifies, and rolls back on mismatch). Galleries without sha256
keep working; the empty-SHA path still emits the existing
"downloading without integrity check" warning.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* test(http): pin CSRF coverage on multipart endpoints

The CSRF middleware in app.go is global (e.Use) so it covers every
multipart upload route — branding assets, fine-tune datasets, audio
transforms, agent collections. Pin that contract: cross-site multipart
POSTs are rejected; same-origin / same-site / API-key clients are not.
Also pins the SameSite=Lax fallback path the skipper relies on when
Sec-Fetch-Site is absent.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(http): XSS hardening — CSP headers, safe href, base-href escape, SVG sandbox

Several closely related XSS-prevention changes spanning the SPA shell, the
React UI, and the branding asset server:

- New SecurityHeaders middleware sets CSP, X-Content-Type-Options,
  X-Frame-Options, and Referrer-Policy on every response. The CSP keeps
  script-src permissive because the Vite bundle relies on inline + eval'd
  scripts; tightening that requires moving to a nonce-based policy.

- The <base href> injection in the SPA shell escaped attacker-controllable
  Host / X-Forwarded-Host headers — a single quote in the host header
  broke out of the attribute. Pass through SecureBaseHref (html.EscapeString).

- Three React sinks rendering untrusted content via dangerouslySetInnerHTML
  switch to text-node rendering with whiteSpace: pre-wrap: user message
  bodies in Chat.jsx and AgentChat.jsx, and the agent activity log in
  AgentChat.jsx. The hand-rolled escape on the agent user-message variant
  is replaced by the same plain-text path.

- New safeHref util collapses non-allowlisted URI schemes (most
  importantly javascript:) to '#'. Applied to gallery `<a href={url}>`
  links in Models / Backends / Manage and to canvas artifact links —
  these come from gallery JSON or assistant tool calls and must be treated
  as untrusted.

- The branding asset server attaches a sandbox CSP plus same-origin CORP
  to .svg responses. The React UI loads logos via <img>, but the same URL
  is also reachable via direct navigation; this prevents script
  execution if a hostile SVG slipped past upload validation.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(http): bound HTTP server with read-header and idle timeouts

A net/http server with no timeouts is trivially Slowloris-able and leaks
idle keep-alive connections. Set ReadHeaderTimeout (30s) to plug the
slow-headers attack and IdleTimeout (120s) to cap keep-alive sockets.

ReadTimeout and WriteTimeout stay at 0 because request bodies can be
multi-GB model uploads and SSE / chat completions stream for many
minutes; operators who need tighter per-request bounds should terminate
slow clients at a reverse proxy.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* test(auth): pin PUT /api/auth/profile field-tampering contract

The handler uses an explicit local body struct (only name and avatar_url)
plus a gorm Updates(map) with a column allowlist, so an attacker posting
{"role":"admin","email":"...","password_hash":"..."} can't mass-assign
those fields. Lock that down with a regression test so a future
"let's just c.Bind(&user)" refactor breaks loudly.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(services): strip directory components from multipart upload filenames

UploadDataset and UploadToCollectionForUser took the raw multipart
file.Filename and joined it into a destination path. The fine-tune
upload was incidentally safe because of a UUID prefix that fused any
leading '..' to a literal segment, but the protection is fragile.
UploadToCollectionForUser handed the filename to a vendored backend
without sanitising at all.

Strip to filepath.Base at both boundaries and reject the trivial
unsafe values ("", ".", "..", "/").

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(react-ui): validate persisted MCP server entries on load

localStorage is shared across same-origin pages; an XSS that lands once
can poison persisted MCP server config to attempt header injection or
to feed a non-http URL into the fetch path on subsequent loads.
Validate every entry: types must match, URL must parse with http(s)
scheme, header keys/values must be control-char-free. Drop anything
that doesn't fit.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(http): close X-Forwarded-Prefix open redirect

The reverse-proxy support concatenated X-Forwarded-Prefix into the
redirect target without validation, so a forged header value of
"//evil.com" turned the SPA-shell redirect helper at /, /browse, and
/browse/* into a 301 to //evil.com/app. The path-strip middleware had
the same shape on its prefix-trailing-slash redirect.

Add SafeForwardedPrefix at the middleware boundary: must start with
a single '/', no protocol-relative '//' opener, no scheme, no
backslash, no control characters. Apply at both consumers; misconfig
trips the validator and the header is dropped.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(http): refuse wildcard CORS when LOCALAI_CORS=true with empty allowlist

When LOCALAI_CORS=true but LOCALAI_CORS_ALLOW_ORIGINS was empty, Echo's
CORSWithConfig saw an empty allow-list and fell back to its default
AllowOrigins=["*"]. An operator who flipped the strict-CORS feature
flag without populating the list got the opposite of what they asked
for. Echo never sets Allow-Credentials: true so this isn't directly
exploitable (cookies aren't sent under wildcard CORS), but the
misconfiguration trap is worth closing. Skip the registration and warn.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(auth): zxcvbn password strength check with user-acknowledged override

The previous policy was len < 8, which let through "Password1" and the
rest of the credential-stuffing corpus. LocalAI has no second factor
yet, so the bar needs to sit higher.

Add ValidatePasswordStrength using github.com/timbutler/zxcvbn (an
actively-maintained fork of the trustelem port; v1.0.4, April 2024):
- min 12 chars, max 72 (bcrypt's truncation point)
- reject NUL bytes (some bcrypt callers truncate at the first NUL)
- require zxcvbn score >= 3 ("safely unguessable, ~10^8 guesses to
  break"); the hint list ["localai", "local-ai", "admin"] penalises
  passwords built from the app's own branding

zxcvbn produces false positives sometimes (a strong-looking password
that happens to match a dictionary word) and operators occasionally
need to set a known-weak password (kiosk demos, CI rigs). Add an
acknowledgement path: PasswordPolicy{AllowWeak: true} skips the
entropy check while still enforcing the hard rules. The structured
PasswordErrorResponse marks weak-password rejections as Overridable
so the UI can surface a "use this anyway" checkbox.

Wired through register, self-service password change, and admin
password reset on both the server and the React UI.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(react-ui): drop HTML5 minLength on new-password inputs

minLength={12} on the new-password input let the browser block the
form submit silently before any JS or network call ran. The browser
focused the field, showed a brief native tooltip, and that was that —
no toast, no fetch, no clue. Reproducible by typing fewer than 12
chars on the second password change of a session.

The JS-level length check in handleSubmit already shows a toast and
the server rejects with a structured error, so the HTML5 attribute
was redundant defence anyway. Drop it.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(react-ui): bundle Geist fonts locally instead of fetching from Google

The new CSP correctly refused to apply styles from
fonts.googleapis.com because style-src is locked to 'self' and
'unsafe-inline'. Loosening the CSP would defeat its purpose; the
right fix is to stop reaching out to a third-party CDN for fonts on
every page load.

Add @fontsource-variable/geist and @fontsource-variable/geist-mono as
npm deps and import them once at boot. Drop the <link rel="preconnect">
and external stylesheet from index.html.

Side benefit: no third-party tracking via Referer / IP on every UI
load, no failure mode when offline / behind a captive portal.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(react-ui): refresh i18n strings to reflect 12-char password minimum

The translations still said "at least 8 characters" everywhere — the
client-side toast on a too-short password change told the user the
wrong floor. Update tooShort and newPasswordPlaceholder /
newPasswordDescription across all five locales (en, es, it, de,
zh-CN) to match the real ValidatePasswordStrength rule.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(auth): make password length-floor overridable like the entropy check

The 12-char minimum was a policy choice, not a technical invariant —
only "non-empty", "<= 72 bytes", and "no NUL bytes" are real bcrypt
constraints. Treating length-12 as a hard rule was inconsistent with
the entropy check (already overridable) and friction for use cases
where the account is just a name on a session, not a security
boundary (single-user kiosk, CI rig, lab demo).

Restructure ValidatePasswordStrength:
- Hard rules (always enforced): non-empty, <= MaxPasswordLength, no NUL byte
- Policy rules (skipped when AllowWeak=true): length >= 12, zxcvbn score >= 3

PasswordError now marks password_too_short as Overridable too. The
React forms generalised from `error_code === 'password_too_weak'` to
`overridable === true`, and the JS-side preflight length checks were
removed (server is source of truth, returns the same checkbox flow).

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

---------

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-05-08 16:25:45 +02:00
LocalAI [bot]
e5d7b84216 fix(distributed): split NATS backend.upgrade off install + dedup loads (#9717)
* feat(messaging): add backend.upgrade NATS subject + payload types

Splits the slow force-reinstall path off backend.install so it can run on
its own subscription goroutine, eliminating head-of-line blocking between
routine model loads and full gallery upgrades.

Wire-level Force flag on BackendInstallRequest is kept for one release as
the rolling-update fallback target; doc note marks it deprecated.

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed/worker): add per-backend mutex helper to backendSupervisor

Different backend names lock independently; same backend serializes. This
is the synchronization primitive used by the upcoming concurrent install
handler — without it, wrapping the NATS callback in a goroutine would
race the gallery directory when two requests target the same backend.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed/worker): run backend.install handler in a goroutine

NATS subscriptions deliver messages serially on a single per-subscription
goroutine. With a synchronous install handler, a multi-minute gallery
download would head-of-line-block every other install request to the
same worker — manifesting upstream as a 5-minute "nats: timeout" on
unrelated routine model loads.

The body now runs in its own goroutine, with a per-backend mutex
(lockBackend) protecting the gallery directory from concurrent operations
on the same backend. Different backend names install in parallel.

Backward-compat: req.Force=true is still honored here, so an older master
that hasn't been updated to send on backend.upgrade keeps working.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed/worker): subscribe to backend.upgrade as a separate path

Slow force-reinstall now lives on its own NATS subscription, so a
multi-minute gallery pull cannot head-of-line-block the routine
backend.install handler on the same worker. Same per-backend mutex
guards both — concurrent install + upgrade for the same backend
serialize at the gallery directory; different backends are independent.

upgradeBackend stops every live process for the backend, force-installs
from gallery, and re-registers. It does not start a new process — the
next backend.install will spawn one with the freshly-pulled binary.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(distributed): add UpgradeBackend on NodeCommandSender; drop Force from InstallBackend

Master now sends to backend.upgrade for force-reinstall, with a
nats.ErrNoResponders fallback to the legacy backend.install Force=true
path so a rolling update with a new master + an old worker still
converges. The Force parameter leaves the public Go API surface
entirely — only the internal fallback sets it on the wire.

InstallBackend timeout drops 5min -> 3min (most replies are sub-second
since the worker short-circuits on already-running or already-installed).
UpgradeBackend timeout is 15min, sized for real-world Jetson-on-WiFi
gallery pulls.

Updates the admin install HTTP endpoint
(core/http/endpoints/localai/nodes.go) to the new signature too.

router_test.go's fakeUnloader does not yet implement the new interface
shape; Task 3.2 will catch it up before the next package-level test run.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(distributed): update fakeUnloader for new NodeCommandSender shape

InstallBackend lost its force bool param (Force is not part of the public
Go API anymore — only the internal upgrade-fallback path sets it on the
wire). UpgradeBackend gained a method. Fake records both call slices and
provides an installHook concurrency seam for upcoming singleflight tests.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(distributed): cover UpgradeBackend's new subject + rolling-update fallback

Task 3.1 changed the master to publish UpgradeBackend on the new
backend.upgrade subject; the existing UpgradeBackend tests scripted the
old install subject and so all 3 began failing as expected. Updates them
to script SubjectNodeBackendUpgrade with BackendUpgradeReply.

Adds two new specs for the rolling-update fallback:
  - ErrNoResponders on backend.upgrade triggers a backend.install
    Force=true retry on the same node.
  - Non-NoResponders errors propagate to the caller unchanged.

scriptedMessagingClient gains scriptNoResponders (real nats sentinel) and
scriptReplyMatching (predicate-matched canned reply, used to assert that
the fallback path actually sets Force=true on the install retry).

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): coalesce concurrent identical backend.install via singleflight

Six simultaneous chat completions for the same not-yet-loaded model were
observed firing six independent NATS install requests, each serializing
through the worker's per-subscription goroutine and amplifying queue
depth. SmartRouter now wraps the NATS round-trip in a singleflight.Group
keyed by (nodeID, backend, modelID, replica): N concurrent identical
loads share one round-trip and one reply.

Distinct (modelID, replica) keys still fire independent calls, so
multi-replica scaling and multi-model fan-out are unaffected.

fakeUnloader gains a sync.Mutex around its recording slices to keep
concurrent test goroutines race-clean.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(e2e/distributed): drop force arg from InstallBackend test calls

Two e2e test call sites still passed the trailing force bool that was
removed from RemoteUnloaderAdapter.InstallBackend in 9bde76d7. Caught
by golangci-lint typecheck on the upgrade-split branch (master CI was
already green because these tests don't run in the standard test path).

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(distributed): extract worker business logic to core/services/worker

core/cli/worker.go grew to 1212 lines after the backend.upgrade split.
The CLI package was carrying backendSupervisor, NATS lifecycle handlers,
gallery install/upgrade orchestration, S3 file staging, and registration
helpers — all distributed-worker business logic that doesn't belong in
the cobra surface.

Move it to a new core/services/worker package, mirroring the existing
core/services/{nodes,messaging,galleryop} pattern. core/cli/worker.go
shrinks to ~19 lines: a kong-tagged shim that embeds worker.Config and
delegates Run.

No behavior change. All symbols stay unexported except Config and Run.
The three worker-specific tests (addr/replica/concurrency) move with
the code via git mv so history follows them.

Files split as:
  worker.go        - Run entry point
  config.go        - Config struct (kong tags retained, kong not imported)
  supervisor.go    - backendProcess, backendSupervisor, process lifecycle
  install.go       - installBackend, upgradeBackend, findBackend, lockBackend
  lifecycle.go     - subscribeLifecycleEvents (verbatim, decomposition is
                     a follow-up commit)
  file_staging.go  - subscribeFileStaging, isPathAllowed
  registration.go  - advertiseAddr, registrationBody, heartbeatBody, etc.
  reply.go         - replyJSON
  process_helpers.go - readLastLinesFromFile

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(distributed/worker): decompose subscribeLifecycleEvents into per-event handlers

The 226-line subscribeLifecycleEvents method packed eight NATS subscriptions
inline. Each grew context-shaped doc comments mixed with subscription
plumbing, making it hard to read any one handler without scrolling past the
others. Extract each handler into its own method on *backendSupervisor; the
subscriber becomes a thin 8-line dispatcher.

No behavior change: each method body is byte-equivalent to its corresponding
inline goroutine + handler. Doc comments that were attached to the inline
SubscribeReply calls migrate to the new method godocs.

Adding the next NATS subject is now a 2-line patch to the dispatcher plus
one new method, instead of grafting onto a monolith.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-08 16:24:54 +02:00
LocalAI [bot]
2be07f61da feat(whisper): honor client cancellation via ggml abort_callback (#9710)
* refactor(transcription): propagate request ctx through ModelTranscription*

Replaces context.Background() with the HTTP request ctx so client
disconnects start cancelling the gRPC call. No backend-side abort wiring
yet — that comes in a later commit. Pure plumbing.

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(cli): pass ctx to backend.ModelTranscription

Follow-up to e65d3e1f which threaded ctx through ModelTranscription
but missed the CLI caller. CLI commands have no request-scoped ctx,
so context.Background() is correct here.

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(audio): propagate request ctx into TTS, sound-gen, audio-transform

Same ctx-plumbing pattern applied to the rest of the audio path. CLI
callers use context.Background() since there is no request scope; HTTP
callers use c.Request().Context().

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(backend): propagate request ctx into biometric, detection, rerank, diarization paths

Replaces remaining context.Background() sites in core/backend with the
caller's ctx. After this commit, every core/backend/*.go entry point
threads the request ctx end-to-end to the gRPC client.

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(grpc): plumb ctx through AIModel.AudioTranscription{,Stream}

Adds context.Context as first parameter to the AIModel interface methods
that wrap whisper-style transcription. Server-side gRPC handler now
forwards the per-RPC ctx (server-streaming uses stream.Context()).
Whisper, Voxtral, vibevoice-cpp, and sherpa-onnx accept the parameter;
none uses it yet — the actual cancellation primitive lands in the next
commit so this is pure plumbing.

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(whisper): add abort_callback hook in the C++ bridge

Installs a std::atomic<int> flag, wires it into
whisper_full_params.abort_callback, and exposes a set_abort(int) C
symbol so Go can flip the flag from a goroutine watching the request
context. transcribe() now distinguishes abort (return 2) from real
whisper_full failure (return 1).

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(whisper): register set_abort symbol in the purego loader

Adds the Go-side binding for the new C export so the next commit can
call CppSetAbort(1) from a watcher goroutine on ctx.Done().

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(whisper): honor ctx cancellation and return codes.Canceled

A watcher goroutine watches ctx.Done() during AudioTranscription and
calls CppSetAbort(1) on cancel. whisper_full sees abort_callback return
true at the next compute graph step, returns non-zero, and the bridge
returns 2 -> AudioTranscription maps that to codes.Canceled.

Adds an opt-in test (gated on WHISPER_MODEL_PATH / WHISPER_AUDIO_PATH)
that asserts cancellation latency under 5s and proves the abort flag
resets cleanly so the next transcription succeeds.

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(whisper): join the cancel watcher goroutine before returning

Follow-up to 85edf9d2. The previous commit used `defer close(done)` and
called the watcher "joined synchronously" — but close() only signals,
it does not block until the goroutine exits. That left a window where
a late CppSetAbort(1) from a cancelled call could land on the next
call, after its C-side g_abort reset but before whisper_full() began
polling the abort callback, corrupting the second transcription.

Switch to a sync.WaitGroup join so wg.Wait() blocks until the watcher
has actually returned from its select.

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(whisper): short-circuit pre-cancelled ctx in AudioTranscription

If ctx is already Done() at entry, return codes.Canceled immediately
instead of running the full transcription. The C-side g_abort reset
happens at the start of transcribe() and would otherwise overwrite a
watcher-set abort flag from an already-cancelled ctx, producing a
spurious successful transcription on a request the client has already
abandoned.

Assisted-by: Claude:claude-haiku-4-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(tests/distributed): update testLLM mock for new AudioTranscription signature

Phase B (93c48e19) added context.Context to AIModel.AudioTranscription
but missed the testLLM mock in tests/e2e/distributed. CI golangci-lint
caught it: *testLLM did not implement grpc.AIModel because the method
signature lacked the ctx parameter, which broke the distributed test
suite compilation and cascaded through every backend-build job that
runs `go build ./...`.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(whisper): port cancellation test to Ginkgo/Gomega

Project policy (.agents/coding-style.md, enforced by golangci-lint
forbidigo) is that all Go tests must use Ginkgo v2 + Gomega — no
stdlib testing patterns (t.Skip, t.Fatalf, etc.). Convert the
cancellation test to a Describe/It block with Skip(...) for env
gating and Expect/HaveOccurred for assertions.

Same coverage: cancel mid-flight returns codes.Canceled within 5s and
a follow-up transcription succeeds, proving the C-side g_abort flag
resets cleanly.

Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-08 01:44:47 +02:00
LocalAI [bot]
447c186089 fix(distributed): make backend upgrade actually re-install on workers (#9708)
* fix(distributed): make backend upgrade actually re-install on workers

UpgradeBackend dispatched a vanilla backend.install NATS event to every
node hosting the backend. The worker's installBackend short-circuits on
"already running for this (model, replica) slot" and returns the
existing address — so the gallery install path was skipped, no artifact
was re-downloaded, no metadata was written. The frontend's drift
detection then re-flagged the same backends every cycle (installedDigest
stays empty → mismatch → "Backend upgrade available (new build)") while
"Backend upgraded successfully" landed in the logs at the same time.
The user-visible symptom: clicking "Upgrade All" silently does nothing
and the same N backends sit on the upgrade list forever.

Two coupled fixes, one PR:

1. Force flag on backend.install. Add `Force bool` to
   BackendInstallRequest and thread it through NodeCommandSender ->
   RemoteUnloaderAdapter. UpgradeBackend (and the reconciler's pending-op
   drain when retrying an upgrade) sets force=true; routine load events
   and admin install endpoints keep force=false. On the worker, force=true
   stops every live process that uses this backend (resolveProcessKeys
   for peer replicas, plus the exact request processKey), skips the
   findBackend short-circuit, and passes force=true into
   gallery.InstallBackendFromGallery so the on-disk artifact is
   overwritten. After the gallery install completes, startBackend brings
   up a fresh process at the same processKey on a new port.

2. Liveness check on the fast path. installBackend's "already running"
   branch read getAddr without verifying the process was alive, so a
   gRPC backend that died without the supervisor noticing left a stale
   (key, addr) entry. The reconciler then dialed that address, got
   ECONNREFUSED, marked the replica failed, retried install — and the
   supervisor said "already running addr=…" again. Loop forever, exactly
   what we observed on a node whose llama-cpp process had died but whose
   supervisor record persisted. Verify s.isRunning(processKey) before
   trusting getAddr; if the entry is stale, stopBackendExact cleans up
   and we fall through to a real install.

Backwards-compatible: the new Force field is omitempty, older workers
ignore it (their default behavior matches force=false). The signature
change on NodeCommandSender.InstallBackend is internal-only.

Verified: unit tests in core/services/nodes pass (108s suite). The
pre-existing core/backend build break (proto regen pending for
word-level timestamps) blocks core/cli and core/http/endpoints/localai
package tests but is unrelated to this change.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7 [Claude Code]

* test(e2e/distributed): pass force=false to adapter.InstallBackend

NodeCommandSender.InstallBackend gained a final force bool in the
upgrade-force commit; the e2e distributed lifecycle tests still called
the old 8-arg signature and broke compilation. These tests exercise the
routine install path (single replica, default behavior), so force=false
preserves their existing semantics.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7 [Claude Code]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-07 17:28:14 +02:00
Andreas Egli
af83518532 feat: support word-level timestamps for faster-whisper (#9621)
Signed-off-by: Andreas Egli <github@kharan.ch>
Signed-off-by: Ettore Di Giacinto <mudler@users.noreply.github.com>
Co-authored-by: Ettore Di Giacinto <mudler@users.noreply.github.com>
2026-05-06 00:32:52 +02:00
Richard Palethorpe
8e43842175 feat(vllm, distributed): tensor parallel distributed workers (#9612)
* feat(vllm): build vllm from source for Intel XPU

Upstream publishes no XPU wheels for vllm. The Intel profile was
silently picking up a non-XPU wheel that imported but errored at
engine init, and several runtime deps (pillow, charset-normalizer,
chardet) were missing on Intel -- backend.py crashed at import time
before the gRPC server came up.

Switch the Intel profile to upstream's documented from-source
procedure (docs/getting_started/installation/gpu.xpu.inc.md in
vllm-project/vllm):

  - Bump portable Python to 3.12 -- vllm-xpu-kernels ships only a
    cp312 wheel.
  - Source /opt/intel/oneapi/setvars.sh so vllm's CMake build sees
    the dpcpp/sycl compiler from the oneapi-basekit base image.
  - Hide requirements-intel-after.txt during installRequirements
    (it used to 'pip install vllm'); install vllm's deps from a
    fresh git clone of vllm via 'uv pip install -r
    requirements/xpu.txt', swap stock triton for
    triton-xpu==3.7.0, then 'VLLM_TARGET_DEVICE=xpu uv pip install
    --no-deps .'.
  - requirements-intel.txt trimmed to LocalAI's direct deps
    (accelerate / transformers / bitsandbytes); torch-xpu, vllm,
    vllm_xpu_kernels and the rest come from upstream's xpu.txt
    during the source build.
  - requirements.txt: add pillow + charset-normalizer + chardet --
    used by backend.py and missing on the Intel install profile.
  - run.sh: 'set -x' so backend startup is visible in container
    logs (the gRPC startup error path was previously opaque).

Also adds a one-line docs example for engine_args.attention_backend
under the vLLM section, since older XE-HPG GPUs (e.g. Arc A770)
need TRITON_ATTN to bypass the cutlass path in vllm_xpu_kernels.

Tested end-to-end on an Intel Arc A770 with Qwen2.5-0.5B-Instruct
via LocalAI's /v1/chat/completions.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(vllm): add multi-node data-parallel follower worker

vLLM v1's multi-node story is one process per node sharing a DP
coordinator over ZMQ -- the head runs the API server with
data_parallel_size > 1 and followers run `vllm serve --headless ...`
with matching topology. Today LocalAI can already configure DP on the
head via the engine_args YAML map, but there's no way to bring up the
follower nodes -- so the head sits waiting for ranks that never
handshake.

Add `local-ai p2p-worker vllm`, mirroring MLXDistributed's structural
precedent (operator-launched, static config, no NATS placement). The
worker:

  - Optionally self-registers with the frontend as an agent-type node
    tagged `node.role=vllm-follower` so it's visible in the admin UI
    and operators can scope ordinary models away via inverse
    selectors.
  - Resolves the platform-specific vllm backend via the gallery's
    "vllm" meta-entry (cuda*, intel-vllm, rocm-vllm, ...).
  - Runs vLLM as a child process so the heartbeat goroutine survives
    until vLLM exits; forwards SIGINT/SIGTERM so vLLM can clean up its
    ZMQ sockets before we tear down.
  - Validates --headless + --start-rank 0 is rejected (rank 0 is the
    head and must serve the API).

Backend run.sh dispatches `serve` as the first arg to vllm's own CLI
instead of LocalAI's backend.py gRPC server -- the follower speaks
ZMQ directly to the head, there is no LocalAI gRPC on the follower
side. Single-node usage is unchanged.

Generalises the gallery resolution helper into findBackendPath()
shared by MLX and vLLM workers; extracts ParseNodeLabels for the
comma-separated label parsing both use.

Ships with two compose recipes (`docker-compose.vllm-multinode.yaml`
for NVIDIA, `docker-compose.vllm-multinode.intel.yaml` for Intel
XPU/xccl) plus `tests/e2e/vllm-multinode/smoke.sh`. Both vendors are
supported (NCCL for CUDA/ROCm, xccl for XPU) but mixed-vendor DP is
not -- PyTorch's process group requires every rank to use the same
collective backend, and NCCL/xccl/gloo don't interoperate.

Out of scope (deferred): SmartRouter-driven placement of follower
ranks via NATS backend.install events, follower log streaming through
/api/backend-logs, tensor-parallel across nodes, disaggregated
prefill via KVTransferConfig.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* test(vllm): CPU-only end-to-end test for multi-node DP

Adds tests/e2e/vllm-multinode/, a Ginkgo + testcontainers-go suite
that brings up a head + headless follower from the locally-built
local-ai:tests image, bind-mounts the cpu-vllm backend extracted by
make extract-backend-vllm so it's seen as a system backend (no gallery
fetch, no registry server), and asserts a chat completion across both
DP ranks. New `make test-e2e-vllm-multinode` target wires the docker
build, backend extract, and ginkgo run together; BuildKit caches both
images so re-runs only rebuild what changed. Tagged Label("VLLMMultinode")
so the existing distributed suite isn't pulled along.

Two pre-existing bugs surfaced by the test:

1. extract-backend-% (Makefile) failed for every backend, because all
   backend images end with `FROM scratch` and `docker create` rejects
   an image with no CMD/ENTRYPOINT. Fixed by passing
   --entrypoint=/run.sh -- the container is never started, only
   docker-cp'd, so the path doesn't have to exist; we just need
   anything that satisfies the daemon's create-time validation.

2. backend/python/vllm/run.sh's `serve` shortcut for the multi-node DP
   follower exec'd ${EDIR}/venv/bin/vllm directly, but uv bakes an
   absolute build-time shebang (`#!/vllm/venv/bin/python3`) that no
   longer resolves once the backend is relocated to BackendsPath.
   _makeVenvPortable's shebang rewriter only matches paths that
   already point at ${EDIR}, so the original shebang slips through
   unchanged. Fixed by exec-ing ${EDIR}/venv/bin/python with the script
   as an argument -- Python ignores the script's shebang in that case.

The test fixture caps memory aggressively (max_model_len=512,
VLLM_CPU_KVCACHE_SPACE=1, TORCH_COMPILE_DISABLE=1) so two CPU engines
fit on a 32 GB box. TORCH_COMPILE_DISABLE is currently mandatory for
cpu-vllm: torch._inductor's CPU-ISA probe runs even with
enforce_eager=True and needs g++ on PATH, which the LocalAI runtime
image doesn't ship -- to be addressed in a follow-up that bundles a
toolchain in the cpu-vllm backend.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* feat(vllm): bundle a g++ toolchain in the cpu-vllm backend image

torch._inductor's CPU-ISA probe (`cpu_model_runner.py:65 "Warming up
model for the compilation"`) shells out to `g++` at vllm engine
startup, regardless of `enforce_eager=True` -- the eager flag only
disables CUDA graphs, not inductor's first-batch warmup. The LocalAI
CPU runtime image (Dockerfile, unconditional apt list) does not ship
build-essential, and the cpu-vllm backend image is `FROM scratch`,
so any non-trivial inference on cpu-vllm crashes with:

  torch._inductor.exc.InductorError:
    InvalidCxxCompiler: No working C++ compiler found in
    torch._inductor.config.cpp.cxx: (None, 'g++')

Bundling the toolchain in the CPU runtime image would bloat every
non-vllm-CPU deployment and force a single GCC version on backends
that may want clang or a different version. So this lives in the
backend, gated to BUILD_TYPE=='' (the CPU profile).

`package.sh` snapshots g++ + binutils + cc1plus + libstdc++ + libc6
(runtime + dev) + the math libs cc1plus links (libisl/libmpc/libmpfr/
libjansson) into ${BACKEND}/toolchain/, mirroring /usr/... layout. The
unversioned binaries on Debian/Ubuntu are symlink chains pointing into
multiarch packages (`g++` -> `g++-13` -> `x86_64-linux-gnu-g++-13`,
the latter in `g++-13-x86-64-linux-gnu`), so the package list resolves
both the version and the arch-triplet variant. Symlinks /lib ->
usr/lib and /lib64 -> usr/lib64 are recreated under the toolchain
root because Ubuntu's UsrMerge keeps them at /, and ld scripts
(`libc.so`, `libm.so`) hardcode `/lib/...` paths that --sysroot
re-roots into the toolchain.

The unversioned `g++`/`gcc`/`cpp` symlinks are replaced with wrapper
shell scripts that resolve their own location at runtime and pass
`--sysroot=<toolchain>` and `-B <toolchain>/usr/lib/gcc/<triplet>/<ver>/`
to the underlying versioned binary. That's how torch's bare `g++ foo.cpp
-o foo` invocation finds cc1plus (-B), system headers (--sysroot), and
the bundled libstdc++ (--sysroot, --sysroot is recursive into linker).

`run.sh` adds the toolchain bin dir to PATH and the toolchain's
shared-lib dir to LD_LIBRARY_PATH -- everything else (header search,
linker search, executable search) is encapsulated in the wrappers.
No-op for non-CPU builds, the dir doesn't exist there.

The cpu-vllm image grows by ~217 MB. Tradeoff is acceptable -- cpu-vllm
is already a niche profile (few users compared to GPU vllm) and the
alternative is a backend that crashes at first inference unless the
operator manually sets TORCH_COMPILE_DISABLE=1, which silently disables
all torch.compile optimizations.

Drops `TORCH_COMPILE_DISABLE=1` from tests/e2e/vllm-multinode -- the
smoke now exercises the real compile path through the bundled toolchain.
Test runtime is +20s for the warmup compile, still <90s end to end.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

* fix(vllm): scope jetson-ai-lab index to L4T-specific wheels via pyproject.toml

The L4T arm64 build resolves dependencies through pypi.jetson-ai-lab.io,
which hosts the L4T-specific torch / vllm / flash-attn wheels but also
transparently proxies the rest of PyPI through `/+f/<sha>/<filename>`
URLs. With `--extra-index-url` + `--index-strategy=unsafe-best-match`
uv would pick those proxy URLs for ordinary PyPI packages —
anthropic/openai/propcache/annotated-types — and fail when the proxy
503s. Master is hitting the same bug on its own l4t-vllm matrix entry.

Switch the l4t13 install path to a pyproject.toml that marks the
jetson-ai-lab index `explicit = true` and pins only torch, torchvision,
torchaudio, flash-attn, and vllm to it via [tool.uv.sources]. uv won't
consult the L4T mirror for anything else, so transitive deps fall back
to PyPI as the default index — no exposure to the proxy 503s.

`uv pip install -r requirements.txt` ignores [tool.uv.sources], so the
l4t13 branch in install.sh now invokes `uv pip install --requirement
pyproject.toml` directly, replacing the old requirements-l4t13*.txt
files. Other BUILD_PROFILEs continue using libbackend.sh's
installRequirements and never read pyproject.toml.

Local resolution test (x86_64, dry-run) confirms uv hits the L4T
index for torch and falls through to PyPI for everything else.

Assisted-by: claude-code:claude-opus-4-7-1m [Read] [Edit] [Bash] [Write]
Signed-off-by: Richard Palethorpe <io@richiejp.com>

---------

Signed-off-by: Richard Palethorpe <io@richiejp.com>
2026-05-06 00:22:50 +02:00
LocalAI [bot]
de83b72bb7 fix(distributed): orchestrator resilience — auto-upgrade routing, worker bind-wait, RAG-init crash, log spam (#9657)
* fix(nodes/health): skip stale-marking already-offline nodes

The health monitor re-emitted "Node heartbeat stale" + "Marking stale
node offline" + MarkOffline on every cycle for nodes that were already
in the offline (or unhealthy) state. For an operator-stopped node this
flooded the logs with the same WARN+INFO pair every check interval.

Skip the staleness branch when the node is already StatusOffline /
StatusUnhealthy — the state is already what we'd write, so neither the
log lines nor the DB update carry information.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(worker): wait for backend gRPC bind before replying to backend.install

The backend supervisor used to wait up to 4s (20 × 200ms) for the
backend's gRPC server to answer a HealthCheck, then log a warning and
reply Success with the bind address anyway. On slower nodes (a Jetson
Orin doing first-boot CUDA init, large CGO library load) the gRPC
listener wasn't up yet, so the frontend's first LoadModel dial returned
"connect: connection refused" and the operator chased a phantom network
issue instead of a startup-timing one.

Two changes:

  - Bump the readiness window to 30s. CUDA init on Orin/Thor first boot
    measures in seconds, not milliseconds.
  - On deadline-exceeded, stop the half-started process, recycle the
    port, and return an error with the backend's stderr tail. The
    frontend now gets a real failure with diagnostic context instead of
    a misleading ECONNREFUSED on a downstream dial.

Process death during the wait window keeps its existing fast-fail path.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(distributed): route auto-upgrade through BackendManager + bump LocalAGI/LocalRecall

Two distributed-mode bugs that surfaced together in the orchestrator
logs:

1. Auto-upgrade always failed with "backend not found".

   UpgradeChecker correctly routed CheckUpgrades through the active
   BackendManager (so the frontend aggregates worker state), but the
   auto-upgrade branch right below called gallery.UpgradeBackend
   directly with the frontend's SystemState. In distributed mode the
   frontend has no backends installed locally, so ListSystemBackends
   returned empty and Get(name) failed for every reported upgrade.
   Auto-upgrade now also goes through BackendManager.UpgradeBackend,
   which fans out to workers via NATS.

2. Embedding-load failure on a remote node crashed the orchestrator.

   When RAG init lazily called NewPersistentPostgresCollection and the
   remote embedding worker was unreachable, LocalRecall called
   os.Exit(1) inside the constructor, killing the orchestrator pod.
   LocalRecall now returns errors instead, LocalAGI surfaces them as a
   nil collection, and the existing RAGProviderFromState path returns
   (nil, nil, false) — the same code path the agent pool already takes
   when no RAG is configured. The orchestrator stays up; chat requests
   degrade to "no RAG available" until the embedding worker recovers.

Bumps:
  github.com/mudler/LocalAGI    → e83bf515d010
  github.com/mudler/localrecall → 6138c1f535ab

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-04 19:09:16 +02:00
Ettore Di Giacinto
bcef72b9c1 feat: localai assistant chat modality (#9602)
* fix(tests): inline model_test fixtures after tests/models_fixtures removal

The previous reorg removed tests/models_fixtures/ but core/config/model_test.go
still read CONFIG_FILE/MODELS_PATH env vars pointing into that directory, so
`make test` failed with "open : no such file or directory" on the readConfigFile
spec (the suite ran with --fail-fast and bailed before openresponses_test).

Inline the YAMLs (config/embeddings/grpc/rwkv/whisper) directly into the test
file, materialise them into a per-test tmpdir via BeforeEach, and drop the
env-var lookups. The test no longer depends on Makefile plumbing.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:claude-opus-4-7 [Edit] [Write] [Bash]

* refactor(modeladmin): extract model-admin helpers into a service package

Lift the bodies of EditModelEndpoint, PatchConfigEndpoint,
ToggleStateModelEndpoint, TogglePinnedModelEndpoint and
VRAMEstimateEndpoint into core/services/modeladmin so the same logic can
be called by non-HTTP clients (notably the in-process MCP server that
backs the LocalAI Assistant chat modality, landing in a follow-up commit).

The HTTP handlers shrink to thin shells that parse echo inputs, call the
matching helper, map typed errors (ErrNotFound, ErrConflict,
ErrPathNotTrusted, ErrBadAction, ...) to the existing HTTP status codes,
and render the existing response shapes. No REST-surface behaviour change;
the existing localai endpoint tests cover the regression net.

Adds focused unit tests for each helper against tmp-dir-backed
ModelConfigLoader fixtures (deep-merge patch, rename + conflict, path
separator guard, toggle/pin enable/disable, sync callback).

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* feat(assistant): LocalAI Assistant chat modality with in-memory MCP server

Adds a chat modality, admin-only, that wires the chat session to an
in-memory MCP server exposing LocalAI's own admin/management surface as
tools. An admin can install models, manage backends, edit configs and
check status by chatting; the LLM calls tools like gallery_search,
install_model, import_model_uri, list_installed_models, edit_model_config
and surfaces the results.

Same Go package powers two modes:

  pkg/mcp/localaitools/

    NewServer(client, opts) builds an MCP server that registers the
    19-tool admin catalog. The LocalAIClient interface has two impls:

    - inproc.Client — calls services directly (no HTTP loopback,
      no synthetic admin API key). Used in-process by the chat handler.
    - httpapi.Client — calls the LocalAI REST API. Used by the new
      `local-ai mcp-server --target=…` subcommand to control a remote
      LocalAI from a stdio MCP host.

    Tools and their embedded skill prompts are agnostic to which client
    backs them. Skill prompts are markdown files under prompts/, embedded
    via go:embed and assembled into the system prompt at server init.

Wiring:

  - core/http/endpoints/mcp/localai_assistant.go — process-wide holder
    that spins up the in-memory MCP server once at Application start
    using paired net.Pipe transports, then reuses LocalToolExecutor
    (no fork) for every chat request that opts in.

  - core/http/endpoints/openai/chat.go — small branch ahead of the
    existing MCP block: when metadata.localai_assistant=true,
    defense-in-depth admin check + executor swap + system-prompt
    injection. All downstream tool dispatch is unchanged.

  - core/http/auth/{permissions,features}.go — adds
    FeatureLocalAIAssistant; gating happens at the chat handler entry
    plus admin-only `/api/settings`.

  - core/cli/{run.go,cli.go,mcp_server.go} —
    LOCALAI_DISABLE_ASSISTANT flag (runtime-toggleable via Settings, no
    restart), plus `local-ai mcp-server` stdio subcommand.

  - core/config/runtime_settings.go — `localai_assistant_enabled`
    runtime setting; the chat handler reads `DisableLocalAIAssistant`
    live at request entry.

UI:

  - Home.jsx — prominent self-explanatory CTA card on first run
    ("Manage LocalAI by chatting"); collapses to a compact
    "Manage by chat" button in the quick-links row once used,
    persisted via localStorage.
  - Chat.jsx — admin-only "Manage" toggle in the chat header,
    "Manage mode" badge, dedicated empty-state copy, starter chips.
  - Settings.jsx — "LocalAI Assistant" section with the runtime
    enable toggle.
  - useChat.js — `localaiAssistant` flag on the chat schema; injects
    `metadata.localai_assistant=true` on requests when active.

Distributed mode: the in-memory MCP server lives only on the head node;
inproc.Client wraps already-distributed-aware services so installs
propagate to workers via the existing GalleryService machinery.

Documentation: `.agents/localai-assistant-mcp.md` is the contributor
contract — when adding an admin REST endpoint, also add a LocalAIClient
method, an inproc + httpapi impl, a tool registration, and a skill
prompt update; the AGENTS.md index links to it.

Out of scope (follow-ups): per-tool RBAC granularity for non-admin
read-only access; streaming mcp_tool_progress for long installs;
React Vitest rig for the UI changes.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(assistant): extract tool/capability/MiB/server-name constants

The MCP tool surface, capability tag set, server-name default, and the
chat-handler metadata key were repeated as bare string literals across
seven files. Renaming any one required hand-editing every call site and
risked code/test/prompt drift.

This pulls them into typed constants:

- pkg/mcp/localaitools/tools.go — Tool* constants for the 19 MCP tools,
  plus DefaultServerName.
- pkg/mcp/localaitools/capability.go — typed Capability + constants for
  the capability tag set the LLM passes to list_installed_models. The
  type rides through LocalAIClient.ListInstalledModels and replaces the
  triplet of "embed"/"embedding"/"embeddings" with the single
  CapabilityEmbeddings.
- pkg/mcp/localaitools/inproc/client.go — bytesPerMiB constant for the
  VRAMEstimate byte→MB conversion.
- core/http/endpoints/mcp/tools.go — MetadataKeyLocalAIAssistant for the
  "localai_assistant" request-metadata key consumed by the chat handler.

Tool registrations, the test catalog, the dispatch table, the validation
fixtures, and the fake/stub clients all reference the constants. The
embedded skill prompts under prompts/ keep their bare strings (go:embed
markdown can't import Go constants); the existing TestPromptsContain
SafetyAnchors guards the alignment.

No behaviour change. All tests pass with -race.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(modeladmin): typed Action for ToggleState/TogglePinned

The toggle/pin verbs were bare strings everywhere — handler signatures,
service implementations, MCP tool args, the fake/stub clients, the
inproc and httpapi LocalAIClient impls, plus 4 test files. A typo in
any caller silently fell through to the runtime "must be 'enable' or
'disable'" check.

Introduce core/services/modeladmin.Action (string alias) with
ActionEnable, ActionDisable, ActionPin, ActionUnpin and a small Valid
helper. The compiler now catches mismatches at every boundary; renames
ripple through one source of truth.

LocalAIClient.ToggleModelState/Pinned signatures change to take
modeladmin.Action. The package is brand-new and unreleased so this is
a free public-API tightening.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(assistant): respect ctx cancellation on gallery channel sends

InstallModel, DeleteModel, ImportModelURI, InstallBackend and
UpgradeBackend all pushed onto galleryop channels with bare sends. If the
worker was paused or the buffer full, the chat-handler goroutine blocked
forever — the LLM kept polling and the request leaked.

Wrap the five sends in a sendModelOp/sendBackendOp helper that selects
on ctx.Done() so a cancelled chat completion surfaces context.Canceled
back to the LLM instead of hanging.

Adds inproc/client_test.go with a pre-cancelled-ctx regression test on
InstallModel; the helpers are shared so the same guarantee covers the
other four call sites.

Assisted-by: Claude:claude-opus-4-7 [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(assistant): graceful shutdown for in-memory holder and stdio CLI

Two related leaks:

- Application.start() built the LocalAIAssistantHolder but never wired
  Close() into the graceful-termination chain — the in-memory MCP
  transport pair stayed alive until process exit, and the goroutines
  behind net.Pipe() didn't drain. Hook into the existing
  signals.RegisterGracefulTerminationHandler chain (same pattern as
  core/http/endpoints/mcp/tools.go:770).

- core/cli/mcp_server.go ran srv.Run with context.Background(); a
  Ctrl-C from the host (Claude Desktop, mcphost, npx inspector) or a
  SIGTERM from process supervision left the stdio loop reading from a
  closed pipe. Switch to signal.NotifyContext to surface the signal
  through ctx and let srv.Run drain.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(assistant): typed HTTPError + propagate prompt walk error

The httpapi client detected "no such job" by substring-matching on the
error string ("404", "could not find") — brittle to status-code
formatting changes and to LocalAI fixing /models/jobs/:uuid to return a
proper 404. Replace with a typed *HTTPError whose Is() method honours
errors.Is(err, ErrHTTPNotFound). The 500-with-"could not find" branch
stays as a transitional fallback documented in Is().

Same change covers ListNodes' 404 fallback for the /api/nodes endpoint.

Adds httptest tests for both 404 and the legacy 500 path, plus a
direct errors.Is exposure test so external callers (the standalone
stdio CLI host) can match without re-string-parsing.

Also tightens prompts.SystemPrompt: panic when fs.WalkDir on the
embedded FS fails. The only realistic cause is a build-time //go:embed
misconfiguration; serving an empty system prompt to the LLM is much
worse than crashing init. TestSystemPromptIncludesAllEmbeddedFiles
catches regressions in CI.

Assisted-by: Claude:claude-opus-4-7 [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(modeladmin): atomic writes for model config files

The five sites that wrote model YAML used os.WriteFile, which opens
with O_TRUNC|O_WRONLY|O_CREATE. A crash mid-write left the destination
truncated and the model unloadable until manual repair. Pre-existing
behaviour inherited from the original endpoint handlers — fix once now
that there's a single helper.

Adds writeFileAtomic: writes to a sibling temp file, chmods, syncs via
Close(), then os.Rename. Same-directory temp keeps the rename atomic on
the same filesystem; cleanup runs on every error path so stray temps
don't accumulate. No new dependency.

Applied to:
- ConfigService.PatchConfig
- ConfigService.EditYAML (both rename and in-place branches)
- mutateYAMLBoolFlag (drives ToggleState + TogglePinned)

atomic_test.go covers the happy path plus a read-only-dir failure case
that asserts the original file is preserved (skipped on Windows where
the chmod trick is POSIX-specific).

Assisted-by: Claude:claude-opus-4-7 [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(assistant): prune dead code, mark stub, document conventions

Three small cleanups landing together:

- Drop the unused errNotImplemented sentinel from inproc/client.go.
  All five methods that used to return it are wired to modeladmin
  helpers since the Phase B commit; the package var is dead.

- Annotate httpapi.Client.GetModelConfig as a known stub. LocalAI's
  /models/edit/:name returns rendered HTML, not JSON, so the standalone
  CLI's get_model_config tool surfaces a clear error to the LLM. A
  future JSON-only /api/models/config-yaml/:name endpoint is tracked in
  the agent contract; FIXME points at it.

- Extend `.agents/localai-assistant-mcp.md` with a "Code conventions"
  section that documents the audit-driven rules: tool/Capability/Action
  constants, errors.Is over substring matching, ctx-aware channel
  sends, atomic writes, and graceful shutdown. Refresh the file map so
  it lists tools.go and capability.go and drops the removed
  tools_bootstrap.go.

The tools_models.go diff is a comment-only change explaining why the
ModelName empty-string check stays at the tool layer (consistency
across LocalAIClient implementations, since the SDK schema validator
only enforces presence, not non-empty).

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test(assistant): convert test files to ginkgo + gomega

The repo convention (per core/http/endpoints/localai/*_test.go,
core/gallery/**, etc.) is Ginkgo v2 with Gomega assertions. The tests I
introduced for the assistant feature used vanilla testing.T, which made
them stand out and stripped the BDD structure the rest of the suite
relies on.

Convert every test file in the assistant scope to Ginkgo:

  pkg/mcp/localaitools/
    dto_test.go            — Describe("DTOs round-trip through JSON")
    prompts_test.go        — Describe("SystemPrompt assembler")
    server_test.go         — Describe("Server tool catalog"),
                              Describe("Tool dispatch"),
                              Describe("Tool error surfacing"),
                              Describe("Argument validation"),
                              Describe("Concurrent tool calls")
    parity_test.go         — Describe("LocalAIClient parity"),
                              hosts the suite's single RunSpecs (the file
                              is package localaitools_test so it can
                              import httpapi without an import cycle;
                              Ginkgo aggregates Describes from both the
                              internal and external test packages into
                              one run).
    httpapi/client_test.go — Describe("httpapi.Client against the
                              LocalAI admin REST surface"),
                              Describe("ErrHTTPNotFound"),
                              Describe("Bearer token")
    inproc/client_test.go  — Describe("inproc.Client cancellation")

  core/services/modeladmin/
    config_test.go         — Describe("ConfigService") with sub-Describes
                              for GetConfig, PatchConfig, EditYAML
    state_test.go          — Describe("ConfigService.ToggleState")
    pinned_test.go         — Describe("ConfigService.TogglePinned")
    atomic_test.go         — Describe("writeFileAtomic")

  core/http/endpoints/mcp/
    localai_assistant_test.go — Describe("LocalAIAssistantHolder")

Each package gets a `*_suite_test.go` with the standard
`RegisterFailHandler(Fail) + RunSpecs(t, "...")` boilerplate. Helpers
that previously took *testing.T (newTestService, writeModelYAML,
readMap, sortedStrings, sortGalleries, etc.) drop the *T receiver and
use Gomega Expectations directly. tmp dirs come from GinkgoT().TempDir().

No semantic change to test coverage — every original assertion has a
direct Gomega counterpart. All suites pass with -race.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* test+docs(assistant): drift detector for Tool ↔ REST route mapping

Honest gap from the audit: the parity_test.go suite only checks four
methods, and uses the same httpapi.Client for both sides — it asserts
stability of the DTO shapes, not equivalence between in-process and
HTTP. If a contributor adds an admin REST endpoint without an MCP tool,
or a tool without a matching httpapi route, both surfaces silently
diverge.

Add a coverage test plus stronger docs:

- pkg/mcp/localaitools/coverage_test.go introduces a hand-maintained
  toolToHTTPRoute map: every Tool* constant must list the REST endpoint
  the httpapi.Client hits (or "(none)" with a documented reason). Two
  Ginkgo specs assert the map and the published catalog stay in sync —
  one fails when a Tool is added without a route entry, the other fails
  when a route entry references a tool that no longer exists. Verified
  by removing the ToolDeleteModel entry locally; the test fired with a
  clear message pointing the contributor at the file.

  Deliberate non-test: we don't enumerate live admin REST routes from
  here. Walking the route registry requires booting Application;
  parsing core/http/routes/localai.go is brittle. The "new admin REST
  endpoint → MCP tool" direction stays a PR checklist item — see below.

- AGENTS.md gets a new Quick Reference bullet that calls out the rule
  and points at the test by name.

- .agents/api-endpoints-and-auth.md tightens the existing "Companion:
  MCP admin tool surface" subsection from "if useful, consider..." to
  "MUST be considered, with three concrete outcomes (tool added,
  deliberately skipped with documented reason, or forgot — which
  breaks the contract)". Adds a checklist item at the bottom of the
  file's authoritative checklist.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Write] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(assistant): drop duplicate DTOs, surface canonical types

Audit feedback: localaitools/dto.go reinvented several types that already
existed in the codebase. Replace the duplicates with the canonical types
so the LLM-visible wire format stays aligned with the rest of LocalAI by
construction (no parallel structs to keep in sync).

Removed (and the canonical type now used by the LocalAIClient interface):

  localaitools.Gallery          → config.Gallery
  localaitools.GalleryModelHit  → gallery.Metadata
  localaitools.VRAMEstimate     → vram.EstimateResult

Tightened scope:

  localaitools.Backend          → kept, but reduced to {Name, Installed}.
                                  ListKnownBackends now returns
                                  []schema.KnownBackend (the canonical
                                  type already used by REST /backends/known).

Kept with documented rationale:

  localaitools.JobStatus       — galleryop.OpStatus has Error error which
                                 marshals to "{}". JobStatus is the
                                 JSON-friendly mirror.
  localaitools.Node            — nodes.BackendNode carries gorm internals
                                 + token hash; we expose only the
                                 LLM-relevant fields.
  ImportModelURIRequest/Response — schema.ImportModelRequest and
                                   GalleryResponse are wire-shaped, mine
                                   are LLM-shaped (BackendPreference flat,
                                   AmbiguousBackend exposed).

Side wins:

  - Drop bytesPerMiB; vram.EstimateResult already carries human-readable
    display strings (size_display, vram_display) the LLM uses directly.
  - Drop the handler-private vramEstimateRequest in
    core/http/endpoints/localai/vram.go and bind directly into
    modeladmin.VRAMRequest (now JSON-tagged).

Both clients pass through these types now where possible (e.g.
ListGalleries in inproc.Client is a one-liner returning
AppConfig.Galleries; httpapi.Client.GallerySearch decodes straight into
[]gallery.Metadata).

All tests green with -race.

Assisted-by: Claude:claude-opus-4-7 [Read] [Edit] [Bash]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* refactor(assistant): extract REST route paths into named constants

httpapi.Client had 18 bare-string path sites scattered across methods.
Pull them into pkg/mcp/localaitools/httpapi/routes.go: static paths as
package-private constants, dynamic paths as small builders that handle
url.PathEscape on segment values.

No behaviour change. Drops the now-unused net/url import from client.go
since path escaping moved into routes.go alongside the path it applies to.

Local-only by design: the server-side registrations in
core/http/routes/localai.go remain bare strings. Sharing constants across
the pkg/ ↔ core/ boundary would invert the layering today; the existing
Tool↔REST drift-detector in coverage_test.go is the safety net for that
direction.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7 [Claude Code]

* docs(assistant): align with shipped UI and dropped bootstrap env vars

The LocalAI Assistant doc still described the older iteration:

- The in-chat toggle was renamed from "Admin" to "Manage" (the badge is
  now "Manage mode" and the home page exposes a "Manage by chat" CTA).
- LOCALAI_ASSISTANT_BOOTSTRAP_MODEL / --localai-assistant-bootstrap-model
  and the bootstrap_default_model tool were removed — admins pick a model
  from the existing selector instead, no env-var configuration required.
- The shipped tool catalog includes import_model_uri but didn't appear in
  the doc; bootstrap_default_model appeared but no longer exists.
- The Settings → LocalAI Assistant runtime toggle wasn't mentioned as the
  preferred way to disable without restart.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-7 [Claude Code]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
2026-04-28 19:29:27 +02:00
Ettore Di Giacinto
3948b580d2 fix(distributed): worker stopBackend/isRunning resolve bare modelID to replica keys
PR #9583 changed the supervisor's process map key from `modelID` to
`modelID#replicaIndex`, but the NATS lifecycle handlers kept passing
the bare modelID:

* `backend.stop` (subscribeLifecycleEvents): `s.stopBackend(req.Backend)`
  → `s.processes["Qwen3.6-..."]` missed (actual key is "...#0") →
  silent no-op. Admin "Unload model" clicks released VRAM via
  model.unload but left the gRPC process alive on its old port.
  Subsequent chats hit installBackend, found the leftover process,
  reused its address — and the UI reported "no models loaded" while
  the model kept responding.

* `backend.delete` (subscribeLifecycleEvents): same map miss in
  `isRunning(req.Backend)` and `s.stopBackend(req.Backend)` — admin
  "Delete backend" deleted the binary while the process was still
  serving traffic.

Add `resolveProcessKeys(id)`: exact match if `id` is a full processKey
(stopAllBackends iterates the map and passes its own keys);
prefix-match if `id` is bare (NATS handlers); empty if `id` contains
`#` but doesn't match (no spurious fallback when the caller was
explicit). stopBackend and isRunning now call it; stopBackend gets a
new stopBackendExact helper for per-key cleanup.

TDD: regression test fails without the fix (resolveProcessKeys
doesn't exist; map lookup by bare name returns nothing). Tests pass
post-fix.

Reproduced live: registry row count was 0 for the model the user
"Unloaded", chat still served by the leftover worker process.
SmartRouter behavior is correct in itself — it falls through to
scheduleAndLoad when no row exists; the bug was that the leftover
process corrupted the install path.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit] [Bash]
2026-04-27 21:43:15 +00:00
Ettore Di Giacinto
6b63b47f61 feat(distributed): support multiple replicas of one model on the same node (#9583)
* feat(distributed): support multiple replicas of one model on the same node

The distributed scheduler implicitly assumed `(node_id, model_name)` was
unique, but the schema didn't enforce it and the worker keyed all gRPC
processes by model name alone. With `MinReplicas=2` against a single
worker, the reconciler "scaled up" every 30s but the registry never
advanced past 1 row — the worker re-loaded the model in-place every tick
until VRAM fragmented and the gRPC process died.

This change introduces multi-replica-per-node as a first-class concept,
with capacity-aware scheduling, a circuit breaker, and VRAM
soft-reservation. Operators can declare per-node capacity via the worker
flag `--max-replicas-per-model` (mirrored as auto-label
`node.replica-slots=N`) or override per-node from the UI.

* Schema: BackendNode gains MaxReplicasPerModel (default 1) and
  ReservedVRAM. NodeModel gains ReplicaIndex (composite with node_id +
  model_name). ModelSchedulingConfig gains UnsatisfiableUntil/Ticks for
  the reconciler circuit breaker.

* Registry: replica_index threaded through SetNodeModel, RemoveNodeModel,
  IncrementInFlight, DecrementInFlight, TouchNodeModel, GetNodeModel,
  SetNodeModelLoadInfo and the InFlightTrackingClient. New helpers:
  CountReplicasOnNode, NextFreeReplicaIndex (with ErrNoFreeSlot),
  RemoveAllNodeModelReplicas, FindNodesWithFreeSlot,
  ClusterCapacityForModel, ReserveVRAM/ReleaseVRAM (atomic UPDATE with
  ErrInsufficientVRAM), and the unsatisfiable-flag CRUD.

* Worker: processKey now `<modelID>#<replicaIndex>` so concurrent loads
  of the same model land on distinct ports. Adds CLI flag
  --max-replicas-per-model (env LOCALAI_MAX_REPLICAS_PER_MODEL, default 1)
  and emits the auto-label.

* Router: scheduleNewModel filters candidates by free slot, allocates the
  replica index, and soft-reserves VRAM before installing the backend.
  evictLRUAndFreeNode now deletes the targeted row by ID instead of all
  replicas of the model on the node — fixes a latent bug where evicting
  one replica orphaned its siblings.

* Reconciler: caps scale-up at ClusterCapacityForModel so a misconfig
  (MinReplicas > capacity) doesn't loop forever. After 3 consecutive
  ticks of capacity==0 it sets UnsatisfiableUntil for a 5m cooldown and
  emits a warning. ClearAllUnsatisfiable fires from Register,
  ApproveNode, SetNodeLabel(s), RemoveNodeLabel and
  UpdateMaxReplicasPerModel so a new node joining or label changes wake
  the reconciler immediately. scaleDownIdle removes highest-replica-index
  first to keep slots compact.

* Heartbeat resets reserved_vram to 0 — worker is the source of truth
  for actual free VRAM; the reservation is only for the in-tick race
  window between two scheduling decisions.

* Probe path (reconciler.probeLoadedModels and health.doCheckAll) now
  pass the row's replica_index to RemoveNodeModel so an unreachable
  replica doesn't orphan healthy siblings.

* Admin override: PUT /api/nodes/:id/max-replicas-per-model sets a
  sticky override (preserved across worker re-registration). DELETE
  clears the override so the worker's flag applies again on next
  register. Required because Kong defaults the worker flag to 1, so
  every worker restart would have silently reverted the UI value.

* React UI: always-visible slot badge on the node row (muted at default
  1, accented when >1); inline editor in the expanded drawer with
  pencil-to-edit, Save/Cancel, Esc/Enter, "(override)" indicator when
  the value is admin-set, and a "Reset" button to hand control back to
  the worker. Soft confirm when shrinking the cap below the count of
  loaded replicas. Scheduling rules table gets an "Unsatisfiable until
  HH:MM" status badge surfacing the cooldown.

* node.replica-slots filtered out of the labels strip on the row to
  avoid duplicating the slot badge.

23 new Ginkgo specs (registry, reconciler, inflight, health) cover:
multi-replica row independence, RemoveNodeModel of one replica
preserving siblings, NextFreeReplicaIndex slot allocation including
ErrNoFreeSlot, capacity-gated scale-up with circuit breaker tripping
and recovery on Register, scheduleDownIdle ordering, ClusterCapacity
math, ReserveVRAM admission gating, Heartbeat reset, override survival
across worker re-registration, and ResetMaxReplicasPerModel handing
control back. Plus 8 stdlib tests for the worker processKey / CLI /
auto-label.

Closes the flap reproduced on Qwen3.6-35B against the nvidia-thor
worker (single 128 GiB node, MinReplicas=2): the reconciler now caps
the scale-up at the cluster's actual capacity instead of looping.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Read] [Edit] [Bash] [Skill:critique] [Skill:audit] [Skill:polish] [Skill:golang-testing]

* refactor(react-ui/nodes): tighten capacity editor copy + adopt ActionMenu for row actions

* Capacity editor hint trimmed from operator-doc-style ("Sourced from
  the worker's `--max-replicas-per-model` flag. Changing it here makes it
  a sticky admin override that survives worker restarts." → "Saved
  values stick across worker restarts.") and the override-state copy
  similarly compressed. The full mechanic is no longer needed in the UI
  — the override pill carries the meaning and the docs cover the rest.

* Node row actions migrated from an inline cluster of icon buttons
  (Drain / Resume / Trash) to the kebab ActionMenu used by /manage for
  per-row model actions, so dense Nodes tables stay clean. Approve
  stays as a prominent primary button — it's a stateful admission gate,
  not a routine action, and elevating it matches how /manage surfaces
  install-time decisions outside the menu.

* The expanded drawer's Labels section now filters node.replica-slots
  out of the editable label list. The label is owned by the Capacity
  editor above; surfacing it again as an editable label invited
  confusion (the Capacity save would clobber any direct edit).

Both backend and agent workers benefit — they share the row rendering
path, so the action menu and label filter apply to both.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit] [chrome-devtools-mcp] [Skill:critique] [Skill:audit] [Skill:polish]

* fix(react-ui/nodes): suppress slot badge on agent workers

Agent workers don't load models, so the per-node replica capacity is
inapplicable to them. Showing "1× slots" on agent rows was a tiny
inconsistency from the unified rendering path — gate the badge on
node_type !== 'agent' so it only appears on backend workers.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit] [chrome-devtools-mcp]

* refactor(react-ui/nodes): distill expanded drawer + restyle scheduling form

The expanded node drawer used to stack five panels — slot badge,
filled capacity box, Loaded Models h4+empty-state, Installed Backends
h4+empty-state, Labels h4+chips+form — making routine inspections feel
like a control panel. The scheduling rule form wrapped its mode toggle
as two 50%-width filled buttons that competed visually with the actual
primary action.

* Drawer: collapse three rarely-touched config zones (Capacity,
  Backends, Labels) into one `<details>` "Manage" disclosure (closed by
  default) with small uppercase eyebrow labels for each zone instead of
  parallel h4 sub-headings. Loaded Models stays as the at-a-glance
  headline with a single-line empty hint instead of a boxed empty state.
  CapacityEditor renders flat (no filled background) — the Manage
  disclosure provides framing.

* Scheduling form: replace the chunky 50%-width button-tabs with the
  project's existing `.segmented` control (icon + label, sized to
  content). Mode hint becomes a single tied line below. Fields stack
  vertically with helper text under inputs and a hairline divider above
  the right-aligned Save / Cancel.

The empty drawer collapses from ~5 stacked sections (~280px tall) to
two lines (~80px). The scheduling form now reads as a designed dialog
instead of raw building blocks. Both surfaces now match the typographic
density and weight of the rest of the admin pages.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit] [chrome-devtools-mcp] [Skill:distill] [Skill:audit] [Skill:polish]

* feat(react-ui/nodes): replace scheduling form's model picker with searchable combobox

The native <select> made operators scroll through every gallery entry to
find a model name. The project already has SearchableModelSelect (used
in Studio/Talk/etc.) which combines free-text search with the gallery
list and accepts typed model names that aren't installed yet — useful
for pre-staging a scheduling rule before the node it'll run on has
finished bootstrapping.

Also drops the now-unused useModels import (the combobox manages the
gallery hook internally).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit]

* refactor(react-ui/nodes): consolidate key/value chip editor + add replica preset chips

The Nodes page was rendering the same key=value chip pattern in two
places with subtly different markup: the Labels editor in the expanded
drawer and (post-distill) the Node Selector input in the scheduling
form. The form's input was also a comma-separated string that operators
were getting wrong.

* Extract <KeyValueChips> as a fully controlled chip-builder. Parent
  owns the map and decides what onAdd/onRemove does — form state for the
  scheduling form, API calls for the live drawer Labels editor. Same
  visuals everywhere; one component to change when polish needs apply.

* Replace the comma-separated Node Selector text input with KeyValueChips.
  Operators were copying syntax from docs and missing commas; the chip
  vocabulary makes the key=value structure self-documenting.

* Add <ReplicaInput>: numeric input + quick-pick preset chips for Min/Max
  replicas. Picked over a slider because replica counts are exact specs
  derived from VRAM math (operator decision, not a fuzzy estimate). The
  chips give one-click access to common values (1/2/3/4 for Min,
  0=no-limit/2/4/8 for Max) without the slider's special-value problem
  (MaxReplicas=0 is categorical, not a position on a continuum).

* Drop the now-unused labelInputs state in the Nodes page (the inline
  label editor's per-node draft state lived there and is now owned by
  KeyValueChips).

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit] [Skill:distill]

* test: fix CI fallout from multi-replica refactor (e2e/distributed + playwright)

Two breakages caught by CI that didn't surface in the local run:

* tests/e2e/distributed/*.go — multiple files used the pre-PR2 registry
  signatures for SetNodeModel / IncrementInFlight / DecrementInFlight /
  RemoveNodeModel / TouchNodeModel / GetNodeModel / SetNodeModelLoadInfo
  and one stale adapter.InstallBackend call in node_lifecycle_test.go.
  All updated to pass replicaIndex=0 — these tests don't exercise
  multi-replica behavior, they just need to compile against the new
  signatures. The chip-builder tests in core/services/nodes/ already
  cover the multi-replica logic.

* core/http/react-ui/e2e/nodes-per-node-backend-actions.spec.js — the
  drawer's distill refactor moved Backends inside a "Manage" <details>
  disclosure that's collapsed by default. The test helper expanded the
  node row but never opened Manage, so the per-node backend table was
  never in the DOM. Helper now clicks `.node-manage > summary` after
  expanding the row.

All 100 playwright tests pass locally; tests/e2e/distributed compiles
clean.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:opus-4-7 [Edit] [Bash]

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
2026-04-27 21:20:05 +02:00
Ettore Di Giacinto
551ebdb57a fix(distributed): correct VRAM/RAM reporting on NVIDIA unified-memory hosts (#9545)
Workers on NVIDIA unified-memory hardware (DGX Spark / GB10, Jetson AGX Thor,
Jetson Orin/Xavier/Nano) were reporting `available_vram=0` back to the frontend,
so the Nodes UI showed the node as fully used even when most of the unified
memory was actually free.

Three causes addressed:

* `isTegraDevice` only matched `/sys/devices/soc0/family == "Tegra"`. DGX Spark
  (SBSA) reports JEDEC codes there instead — `jep106:0426` for the NVIDIA
  manufacturer — so the Tegra/unified-memory fallback never ran. Renamed to
  `isNVIDIAIntegratedGPU` and extended to also match `jep106:0426[:*]` via
  `/sys/devices/soc0/soc_id`.

* The unified-iGPU code defaulted the device name to `"NVIDIA Jetson"` when
  `/proc/device-tree/model` was missing. That's what happens for Thor inside a
  docker container, and always on DGX Spark. New `nvidiaIntegratedGPUName`
  resolves via dt-model → `/sys/devices/soc0/machine` → `soc_id` lookup
  (`jep106:0426:8901` → `"NVIDIA GB10"`) so the Nodes UI labels the box
  correctly.

* Worker heartbeat sent `available_vram=0` (or total-as-available) when VRAM
  usage was momentarily unknown — e.g. when `nvidia-smi` intermittently failed
  with `waitid: no child processes` under containers without `--init`. Each
  such heartbeat overwrote the DB and made the UI flip to "fully used".
  `heartbeatBody` now omits `available_vram` in that case so the DB keeps its
  last good value.

Also updates the commented GPU blocks in both compose files with
`NVIDIA_DRIVER_CAPABILITIES=compute,utility`, `capabilities: [gpu, utility]`,
and `init: true`, and documents the requirement in the distributed-mode and
nvidia-l4t pages. Without `utility`, NVML/`nvidia-smi` are absent inside the
container, which is what put the DGX Spark worker into the buggy fallback in
the first place.

Detection verified on live hardware (dgx.casa / GB10 and 192.168.68.23 / Thor)
by running a cross-compiled probe of the new helpers on both host and inside
the worker container.

Assisted-by: Claude:opus-4.7 [Claude Code]
2026-04-24 22:02:23 +02:00
LocalAI [bot]
315b634a91 feat: improve CLI error messages with actionable guidance (#8880)
- transcript.go: Model not found error now suggests available models commands
- util.go: GGUF error explains format and how to get models
- worker_p2p.go: Token error explains purpose and how to obtain one
- run.go: Startup failure includes troubleshooting steps and docs link
- model_config_loader.go: Config validation errors include file path and guidance

Refs: H2 - UX Review Issue

Signed-off-by: localai-bot <localai-bot@noreply.github.com>
Co-authored-by: localai-bot <localai-bot@noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-21 11:53:26 +02:00
Russell Sim
02bb715c0a fix(distributed): pass ExternalURI through NATS backend install (#9446)
When installing a backend with a custom OCI URI in distributed mode,
the URI was captured in ManagementOp.ExternalURI by the HTTP handler
but never forwarded to workers. BackendInstallRequest had no URI field,
so workers fell through to the gallery lookup and failed with
"no backend found with name <custom-name>".

Add URI/Name/Alias fields to BackendInstallRequest and thread them from
ManagementOp through DistributedBackendManager.InstallBackend() and the
RemoteUnloaderAdapter. On the worker side, route to InstallExternalBackend
when URI is set instead of InstallBackendFromGallery. Update all
remaining InstallBackend call sites (UpgradeBackend, reconciler
pending-op drain, router auto-install) to pass empty strings for the
new params.

Assisted-by: Claude Code:claude-sonnet-4-6

Signed-off-by: Russell Sim <rsl@simopolis.xyz>
2026-04-20 23:39:35 +02:00
Ettore Di Giacinto
75a63f87d8 feat(distributed): sync state with frontends, better backend management reporting (#9426)
* fix(distributed): detect backend upgrades across worker nodes

Before this change `DistributedBackendManager.CheckUpgrades` delegated to the
local manager, which read backends from the frontend filesystem. In
distributed deployments the frontend has no backends installed locally —
they live on workers — so the upgrade-detection loop never ran and the UI
silently never surfaced upgrades even when the gallery advertised newer
versions or digests.

Worker-side: NATS backend.list reply now carries Version, URI and Digest
for each installed backend (read from metadata.json).

Frontend-side: DistributedBackendManager.ListBackends aggregates per-node
refs (name, status, version, digest) instead of deduping, and CheckUpgrades
feeds that aggregation into gallery.CheckUpgradesAgainst — a new entrypoint
factored out of CheckBackendUpgrades so both paths share the same core
logic.

Cluster drift policy: when per-node version/digest tuples disagree, the
backend is flagged upgradeable regardless of whether any single node
matches the gallery, and UpgradeInfo.NodeDrift enumerates the outliers so
operators can see *why* it is out of sync. The next upgrade-all realigns
the cluster.

Tests cover: drift detection, unanimous-match (no upgrade), and the
empty-installed-version path that the old distributed code silently
missed.

* feat(ui): surface backend upgrades in the System page

The System page (Manage.jsx) only showed updates as a tiny inline arrow,
so operators routinely missed them. Port the Backend Gallery's upgrade UX
so System speaks the same visual language:

- Yellow banner at the top of the Backends tab when upgrades are pending,
  with an "Upgrade all" button (serial fan-out, matches the gallery) and a
  "Updates only" filter toggle.
- Warning pill (↑ N) next to the tab label so the count is glanceable even
  when the banner is scrolled out of view.
- Per-row labeled "Upgrade to vX.Y" button (replaces the icon-only button
  that silently flipped semantics between Reinstall and Upgrade), plus an
  "Update available" badge in the new Version column.
- New columns: Version (with upgrade + drift chips), Nodes (per-node
  attribution badges for distributed mode, degrading to a compact
  "on N nodes · M offline" chip above three nodes), Installed (relative
  time).
- System backends render a "Protected" chip instead of a bare "—" so rows
  still align and the reason is obvious.
- Delete uses the softer btn-danger-ghost so rows don't scream red; the
  ConfirmDialog still owns the "are you sure".

The upgrade checker also needed the same per-worker fix as the previous
commit: NewUpgradeChecker now takes a BackendManager getter so its
periodic runs call the distributed CheckUpgrades (which asks workers)
instead of the empty frontend filesystem. Without this the /api/backends/
upgrades endpoint stayed empty in distributed mode even with the protocol
change in place.

New CSS primitives — .upgrade-banner, .tab-pill, .badge-row, .cell-stack,
.cell-mono, .cell-muted, .row-actions, .btn-danger-ghost — all live in
App.css so other pages can adopt them without duplicating styles.

* feat(ui): polish the Nodes page so it reads like a product

The Nodes page was the biggest visual liability in distributed mode.
Rework the main dashboard surfaces in place without changing behavior:

StatCards: uniform height (96px min), left accent bar colored by the
metric's semantic (success/warning/error/primary), icon lives in a
36x36 soft-tinted chip top-right, value is left-aligned and large.
Grid auto-fills so the row doesn't collapse on narrow viewports. This
replaces the previous thin-bordered boxes with inconsistent heights.

Table rows: expandable rows now show a chevron cue on the left (rotates
on expand) so users know rows open. Status cell became a dedicated chip
with an LED-style halo dot instead of a bare bullet. Action buttons gained
labels — "Approve", "Resume", "Drain" — so the icons aren't doing all
the semantic work; the destructive remove action uses the softer
btn-danger-ghost variant so rows don't scream red, with the ConfirmDialog
still owning the real "are you sure". Applied cell-mono/cell-muted
utility classes so label chips and addresses share one spacing/font
grammar instead of re-declaring inline styles everywhere.

Expanded drawer: empty states for Loaded Models and Installed Backends
now render as a proper drawer-empty card (dashed border, icon, one-line
hint) instead of a plain muted string that read like broken formatting.

Tabs: three inline-styled buttons became the shared .tab class so they
inherit focus ring, hover state, and the rest of the design system —
matches the System page.

"Add more workers" toggle turned into a .nodes-add-worker dashed-border
button labelled "Register a new worker" (action voice) instead of a
chevron + muted link that operators kept mistaking for broken text.

New shared CSS primitives carry over to other pages:
.stat-grid + .stat-card, .row-chevron, .node-status, .drawer-empty,
.nodes-add-worker.

* feat(distributed): durable backend fan-out + state reconciliation

Two connected problems handled together:

1) Backend delete/install/upgrade used to silently skip non-healthy nodes,
   so a delete during an outage left a zombie on the offline node once it
   returned. The fan-out now records intent in a new pending_backend_ops
   table before attempting the NATS round-trip. Currently-healthy nodes
   get an immediate attempt; everyone else is queued. Unique index on
   (node_id, backend, op) means reissuing the same operation refreshes
   next_retry_at instead of stacking duplicates.

2) Loaded-model state could drift from reality: a worker OOM'd, got
   killed, or restarted a backend process would leave a node_models row
   claiming the model was still loaded, feeding ghost entries into the
   /api/nodes/models listing and the router's scheduling decisions.

The existing ReplicaReconciler gains two new passes that run under a
fresh KeyStateReconciler advisory lock (non-blocking, so one wedged
frontend doesn't freeze the cluster):

  - drainPendingBackendOps: retries queued ops whose next_retry_at has
    passed on currently-healthy nodes. Success deletes the row; failure
    bumps attempts and pushes next_retry_at out with exponential backoff
    (30s → 15m cap). ErrNoResponders also marks the node unhealthy.

  - probeLoadedModels: gRPC-HealthChecks addresses the DB thinks are
    loaded but hasn't seen touched in the last probeStaleAfter (2m).
    Unreachable addresses are removed from the registry. A pluggable
    ModelProber lets tests substitute a fake without standing up gRPC.

DistributedBackendManager exposes DeleteBackendDetailed so the HTTP
handler can surface per-node outcomes ("2 succeeded, 1 queued") to the
UI in a follow-up commit; the existing DeleteBackend still returns
error-only for callers that don't care about node breakdown.

Multi-frontend safety: the state pass uses advisorylock.TryWithLockCtx
on a new key so N frontends coordinate — the same pattern the health
monitor and replica reconciler already rely on. Single-node mode runs
both passes inline (adapter is nil, state drain is a no-op).

Tests cover the upsert semantics, backoff math, the probe removing an
unreachable model but keeping a reachable one, and filtering by
probeStaleAfter.

* feat(ui): show cluster distribution of models in the System page

When a frontend restarted in distributed mode, models that workers had
already loaded weren't visible until the operator clicked into each node
manually — the /api/models/capabilities endpoint only knew about
configs on the frontend's filesystem, not the registry-backed truth.

/api/models/capabilities now joins in ListAllLoadedModels() when the
registry is active, returning loaded_on[] with node id/name/state/status
for each model. Models that live in the registry but lack a local config
(the actual ghosts, not recovered from the frontend's file cache) still
surface with source="registry-only" so operators can see and persist
them; without that emission they'd be invisible to this frontend.

Manage → Models replaces the old Running/Idle pill with a distribution
cell that lists the first three nodes the model is loaded on as chips
colored by state (green loaded, blue loading, amber anything else). On
wider clusters the remaining count collapses into a +N chip with a
title-attribute breakdown. Disabled / single-node behavior unchanged.

Adopted models get an extra "Adopted" ghost-icon chip with hover copy
explaining what it means and how to make it permanent.

Distributed mode also enables a 10s auto-refresh and a "Last synced Xs
ago" indicator next to the Update button so ghost rows drop off within
one reconcile tick after their owning process dies. Non-distributed
mode is untouched — no polling, no cell-stack, same old Running/Idle.

* feat(ui): NodeDistributionChip — shared per-node attribution component

Large clusters were going to break the Manage → Backends Nodes column:
the old inline logic rendered every node as a badge and would shred the
layout at >10 workers, plus the Manage → Models distribution cell had
copy-pasted its own slightly-different version.

NodeDistributionChip handles any cluster size with two render modes:
  - small (≤3 nodes): inline chips of node names, colored by health.
  - large: a single "on N nodes · M offline · K drift" summary chip;
    clicking opens a Popover with a per-node table (name, status,
    version, digest for backends; name, status, state for models).

Drift counting mirrors the backend's summarizeNodeDrift so the UI
number matches UpgradeInfo.NodeDrift. Digests are truncated to the
docker-style 12-char form with the full value preserved in the title.

Popover is a new general-purpose primitive: fixed positioning anchored
to the trigger, flips above when there's no room below, closes on
outside-click or Escape, returns focus to the trigger. Uses .card as
its surface so theming is inherited. Also useful for a future
labels-editor popup and the user menu.

Manage.jsx drops its duplicated inline Nodes-column + loaded_on cell
and uses the shared chip with context="backends" / "models"
respectively. Delete code removes ~40 lines of ad-hoc logic.

* feat(ui): shared FilterBar across the System page tabs

The Backends gallery had a nice search + chip + toggle strip; the System
page had nothing, so the two surfaces felt like different apps. Lift the
pattern into a reusable FilterBar and wire both System tabs through it.

New component core/http/react-ui/src/components/FilterBar.jsx renders a
search input, a role="tablist" chip row (aria-selected for a11y), and
optional toggles / right slot. Chips support an optional `count` which
the System page uses to show "User 3", "Updates 1" etc.

System Models tab: search by id or backend; chips for
All/Running/Idle/Disabled/Pinned plus a conditional Distributed chip in
distributed mode. "Last synced" + Update button live in the right slot.

System Backends tab: search by name/alias/meta-backend-for; chips for
All/User/System/Meta plus conditional Updates / Offline-nodes chips
when relevant. The old ad-hoc "Updates only" toggle from the upgrade
banner folded into the Updates chip — one source of truth for that
filter. Offline chip only appears in distributed mode when at least
one backend has an unhealthy node, so the chip row stays quiet on
healthy clusters.

Filter state persists in URL query params (mq/mf/bq/bf) so deep links
and tab switches keep the operator's filter context instead of
resetting every time.

Also adds an "Adopted" distribution path: when a model in
/api/models/capabilities carries source="registry-only" (discovered on
a worker but not configured locally), the Models tab shows a ghost chip
labelled "Adopted" with hover copy explaining how to persist it — this
is what closes the loop on the ghost-model story end-to-end.
2026-04-19 17:55:53 +02:00
Ettore Di Giacinto
2865f0f8d3 feat(ux): backend management enhancement (#9325)
* feat: add PreferDevelopmentBackends setting, expose isMeta/isDevelopment in API

- Add PreferDevelopmentBackends config field, CLI flag, runtime setting
- Add IsDevelopment() method to GalleryBackend
- Use AvailableBackendsUnfiltered in UI API to show all backends
- Expose isMeta, isDevelopment, preferDevelopmentBackends in backend API response

* feat: upgrade banner with Upgrade All button, detect pre-existing backends

- Add upgrade banner on Backends page showing count and Upgrade All button
- Fix upgrade detection for backends installed before version tracking:
  flag as upgradeable when gallery has a version but installed has none
- Fix OCI digest check to flag backends with no stored digest as upgradeable
2026-04-12 00:35:22 +02:00
Ettore Di Giacinto
8ab0744458 feat: backend versioning, upgrade detection and auto-upgrade (#9315)
* feat: add backend versioning data model foundation

Add Version, URI, and Digest fields to BackendMetadata for tracking
installed backend versions and enabling upgrade detection. Add Version
field to GalleryBackend. Add UpgradeAvailable/AvailableVersion fields
to SystemBackend. Implement GetImageDigest() for lightweight OCI digest
lookups via remote.Head. Record version, URI, and digest at install time
in InstallBackend() and propagate version through meta backends.

* feat: add backend upgrade detection and execution logic

Add CheckBackendUpgrades() to compare installed backend versions/digests
against gallery entries, and UpgradeBackend() to perform atomic upgrades
with backup-based rollback on failure. Includes Agent A's data model
changes (Version/URI/Digest fields, GetImageDigest).

* feat: add AutoUpgradeBackends config and runtime settings

Add configuration and runtime settings for backend auto-upgrade:
- RuntimeSettings field for dynamic config via API/JSON
- ApplicationConfig field, option func, and roundtrip conversion
- CLI flag with LOCALAI_AUTO_UPGRADE_BACKENDS env var
- Config file watcher support for runtime_settings.json
- Tests for ToRuntimeSettings, ApplyRuntimeSettings, and roundtrip

* feat(ui): add backend version display and upgrade support

- Add upgrade check/trigger API endpoints to config and api module
- Backends page: version badge, upgrade indicator, upgrade button
- Manage page: version in metadata, context-aware upgrade/reinstall button
- Settings page: auto-upgrade backends toggle

* feat: add upgrade checker service, API endpoints, and CLI command

- UpgradeChecker background service: checks every 6h, auto-upgrades when enabled
- API endpoints: GET /backends/upgrades, POST /backends/upgrades/check, POST /backends/upgrade/:name
- CLI: `localai backends upgrade` command, version display in `backends list`
- BackendManager interface: add UpgradeBackend and CheckUpgrades methods
- Wire upgrade op through GalleryService backend handler
- Distributed mode: fan-out upgrade to worker nodes via NATS

* fix: use advisory lock for upgrade checker in distributed mode

In distributed mode with multiple frontend instances, use PostgreSQL
advisory lock (KeyBackendUpgradeCheck) so only one instance runs
periodic upgrade checks and auto-upgrades. Prevents duplicate
upgrade operations across replicas.

Standalone mode is unchanged (simple ticker loop).

* test: add e2e tests for backend upgrade API

- Test GET /api/backends/upgrades returns 200 (even with no upgrade checker)
- Test POST /api/backends/upgrade/:name accepts request and returns job ID
- Test full upgrade flow: trigger upgrade via API, wait for job completion,
  verify run.sh updated to v2 and metadata.json has version 2.0.0
- Test POST /api/backends/upgrades/check returns 200
- Fix nil check for applicationInstance in upgrade API routes
2026-04-11 22:31:15 +02:00