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* ci: close the GC race + cascade-skip + darwin grpc gaps from v4.2.1
v4.2.1's backend.yml run (#25701862853) exposed three independent issues
on top of the singletons fix shipped in ea001995. Address all three plus
two related cleanups:
1. quay GC race in backend-merge-jobs-multiarch (12/37 merges failed with
"manifest not found"). Even after PR #9746 split multi/single-arch
merges, the multiarch matrix itself takes ~2h to drain at
max-parallel: 8, and the earliest per-arch digests (push-by-digest,
no tag) get reaped by quay's GC before the merge runs. The split
bounded the race for multiarch; it doesn't eliminate it. Anchor each
per-arch digest immediately to a tag in the internal ci-cache image
(`keepalive-<run_id><tag-suffix>-<platform-tag>`). Quay won't GC
tagged manifests. backend_merge.yml deletes the keepalive tags via
quay REST API after publishing the user-facing manifest list.
Cleanup is best-effort: if the quay token is not OAuth-scoped the
merge does NOT fail, the orphan tags just persist.
2. cascade-skip on backend-merge-jobs-singlearch. v4.2.1 had 2 failed
and 2 cancelled singlearch builds (out of 199); GHA's default
`needs:` semantics cascade-skipped the entire singlearch merge
matrix, so zero singleton tags were applied even though 197
singletons built successfully. Wrap the merge `if:` in
`!cancelled() && ...` for both multi and single arch in backend.yml
and backend_pr.yml so partial build failures publish the successful
tag-suffixes.
3. Darwin llama-cpp grpc-server build fails with `find_package(absl)`
not found. Same shape as the ccache/blake3/fmt/hiredis/xxhash/zstd
fix already in `Dependencies`: a brew cache hit restores
`/opt/homebrew/Cellar/grpc` so `brew install grpc` no-ops, but
abseil isn't in our Cellar cache list and never gets installed
alongside, leaving grpc's CMake unable to resolve it. Mirror the
`brew reinstall ccache` line with `brew reinstall grpc` to
re-validate grpc's full transitive dep closure on every cache-hit
run.
4. Move the four heaviest CUDA cpp builds back to bigger-runner. v4.2.1
wall-clock: -gpu-nvidia-cuda-12-llama-cpp 5h36m,
-gpu-nvidia-cuda-12-turboquant 6h05m,
-gpu-nvidia-cuda-13-llama-cpp 5h37m,
-gpu-nvidia-cuda-13-turboquant 6h05m. The cuda-12 turboquant and
cuda-13 turboquant entries are over GHA's 6h job timeout. Phase 5.3
of the free-tier migration (PR #9730) had explicitly flagged this
batch as 'highest-risk' with a per-entry revert path. All other
matrix entries (vulkan-llama-cpp ~47m, ROCm hipblas-llama-cpp ~2h,
intel sycl-f32 ~1h49m) stay on free-tier ubuntu-latest.
Verified locally: all six edited workflow YAMLs parse cleanly. Real
verification has to come from the next tag release run.
Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* ci: extract keepalive anchor + cleanup into .github/scripts/
The two inline shell blocks from the previous commit are long enough to
hurt readability of the workflow YAML and benefit from their own files
with self-contained docs. Move them to .github/scripts/:
anchor-digest-in-cache.sh backend_build.yml's keepalive anchor
cleanup-keepalive-tags.sh backend_merge.yml's best-effort cleanup
Workflow steps reduce to a single `run:` invocation each, with all the
parameter plumbing handled by env vars on the step. backend_merge.yml
also gains a sparse `actions/checkout@v6` step (sparse to .github/scripts
only) so the cleanup script is available on the runner — backend_build
already checks out for the docker build.
Net workflow diff: -36 lines across the two files. Script logic and
behavior are byte-identical to the inline version.
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>