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In distributed mode the Backends gallery used to fan every install out to every worker — fine for auto-resolving (meta) backends like llama-cpp where each node picks its own variant, but wrong for hardware-specific builds like cpu-llama-cpp that would silently land on every GPU node. Adds a node-targeted install path through the existing POST /api/nodes/:id/backends/install plumbing, with two entry points: - Backends gallery row gets a split-button in distributed mode. Auto- resolving keeps "Install on all nodes" as the primary; chevron menu opens the picker. Hardware-specific routes the primary directly to the picker — no fan-out path on the row. - Nodes-page drawer gets a "+ Add backend" button that navigates to /app/backends?target=<node-id>; the gallery scopes itself to that node (banner, single per-row install button, Reinstall/Remove for already- installed). One gallery, two scopes — no second UI to maintain. The picker (new NodeInstallPicker) shows a 3-state suitability column (Compatible / Override / Installed), an auto-expanding variant override disclosure that fires when selected nodes have no working GPU, parallel per-node installs with inline status and Retry-failed-nodes, and a mismatch confirm that names the consequence on the button itself. A 409 fan-out guard on /api/backends/apply protects CLI/Terraform/script users from the same footgun: hardware-specific installs in distributed mode now return code "concrete_backend_requires_target" with a human- readable error and a meta_alternative pointer. The gallery list payload now surfaces capabilities, metaBackendFor and per-row nodes (NodeBackendRef) so the picker and the new Nodes column have everything they need without re-walking the gallery client-side. GODEBUG=netdns=go is set on the compose services because the cgo DNS resolver follows the container's nsswitch.conf to host systemd-resolved (127.0.0.53), unreachable from inside the container; the pure-Go resolver reads /etc/resolv.conf directly and uses Docker's embedded DNS. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude Code:claude-opus-4-7[1m] [Edit] [Bash] [Read] [Write]
31 lines
1.3 KiB
Go
31 lines
1.3 KiB
Go
package galleryop
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import (
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"context"
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"github.com/mudler/LocalAI/core/gallery"
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)
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// ProgressCallback reports download progress for model/backend installations.
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type ProgressCallback func(fileName, current, total string, percentage float64)
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// ModelManager handles model install and delete lifecycle.
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type ModelManager interface {
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InstallModel(ctx context.Context, op *ManagementOp[gallery.GalleryModel, gallery.ModelConfig], progressCb ProgressCallback) error
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DeleteModel(name string) error
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}
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// BackendManager handles backend install, delete, upgrade, and listing lifecycle.
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type BackendManager interface {
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InstallBackend(ctx context.Context, op *ManagementOp[gallery.GalleryBackend, any], progressCb ProgressCallback) error
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DeleteBackend(name string) error
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ListBackends() (gallery.SystemBackends, error)
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UpgradeBackend(ctx context.Context, name string, progressCb ProgressCallback) error
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CheckUpgrades(ctx context.Context) (map[string]gallery.UpgradeInfo, error)
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// IsDistributed reports whether installs fan out across worker nodes.
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// The HTTP layer uses this to refuse hardware-specific (non-meta) installs
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// on /api/backends/apply in distributed mode — a CPU build silently
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// landing on every GPU node is the footgun this guards against.
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IsDistributed() bool
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}
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