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* ci: add per-arch + manifest-merge support for LocalAI server image Mirror the backend_build.yml + backend_merge.yml pattern shipped in PR #9726 for the LocalAI server image: - image_build.yml accepts optional platform-tag (default ''), scopes registry cache to cache-localai<suffix>-<platform-tag>, and pushes by canonical digest only on push events. Digests upload as artifacts named digests-localai<suffix>-<platform-tag>, with a "-core" placeholder when tag-suffix is empty so the merge job's download pattern doesn't over-match across multiple suffixes. - image_merge.yml is a new reusable workflow that downloads matching digest artifacts and assembles the final tagged manifest list via docker buildx imagetools create. Image names differ from backend_*.yml: the LocalAI server is published under quay.io/go-skynet/local-ai and localai/localai (not -backends). Not yet wired into image.yml / image-pr.yml — Commit C does that. Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: fan out per-arch split to remaining 34 backends Convert all remaining linux/amd64,linux/arm64 entries in backend-matrix.yml to per-arch + manifest-merge form. Each was a single matrix entry running both arches on x86 under QEMU emulation; each becomes two entries — amd64 on ubuntu-latest, arm64 on ubuntu-24.04-arm (native). Four backends that were on bigger-runner (-cpu-llama-cpp, -cpu-turboquant, -gpu-vulkan-llama-cpp, -gpu-vulkan-turboquant) have both legs moved to free tier as part of the same change. They are compile-only (no torch/CUDA install) and fit comfortably with the setup-build-disk /mnt relocation. Phase 4 (next commit) retires the remaining 5 single-arch bigger-runner entries. After this commit: - 271 total matrix entries (was 237) - 0 multi-arch entries left - 36 per-arch pairs (34 new + 2 pilots from PR #9727) - 5 bigger-runner entries remaining (single-arch, Phase 4 target) Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: split LocalAI image multi-arch entries per arch + merge Mirror the backend per-arch split for the main LocalAI image: - image.yml's core-image-build matrix: split the core ('') and -gpu-vulkan entries into amd64 + arm64 legs each. amd64 on ubuntu-latest, arm64 on ubuntu-24.04-arm (native). - New top-level core-image-merge and gpu-vulkan-image-merge jobs call image_merge.yml after core-image-build completes. - image-pr.yml's image-build matrix: split the -vulkan-core entry. No merge job added on the PR side — image_build.yml's digest-push is push-only-event-gated, so a PR-side merge would have nothing to download. After this commit, no workflow file references linux/amd64,linux/arm64 in a single matrix slot. Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: retire bigger-runner from backend matrix (Phase 4) Migrate the remaining 5 single-arch bigger-runner entries to ubuntu-latest. Combined with the Phase 3 setup-build-disk /mnt relocation (PR #9726), free-tier ubuntu-latest now has ~100 GB of working space — enough for ROCm dev image (~16 GB), CUDA toolkit (~5 GB), and the per-backend compile/install steps these entries do. Backends migrated: - -gpu-nvidia-cuda-12-llama-cpp - -gpu-nvidia-cuda-12-turboquant - -gpu-rocm-hipblas-faster-whisper - -gpu-rocm-hipblas-coqui - -cpu-ik-llama-cpp After this commit, .github/backend-matrix.yml has zero bigger-runner references. The bigger-runner used in tests-vibevoice-cpp-grpc- transcription (test-extra.yml) is a separate concern handled in a follow-up. Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: migrate 9 Intel oneAPI backends to free tier (Phase 5.1) Intel oneAPI base image is ~6 GB; each backend's wheel install stays well within the ~100 GB working space provided by Phase 3's setup-build-disk /mnt relocation. Lowest-risk batch of the arc-runner-set retirement. Backends migrated: vllm, sglang, vibevoice, qwen-asr, nemo, qwen-tts, fish-speech, voxcpm, pocket-tts (all -gpu-intel-* variants). Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: migrate 15 ROCm Python backends to free tier (Phase 5.2) ROCm dev image (~16 GB) plus per-backend torch/wheels install fits on ubuntu-latest with the /mnt-relocated Docker root. These entries include the heavier vLLM/sglang/transformers/diffusers stack on ROCm; if any specific backend OOMs or runs out of disk, individual flips back to arc-runner-set are revertable per-entry. Backends migrated: all 15 -gpu-rocm-hipblas-* entries previously on arc-runner-set (vllm/vllm-omni/sglang/transformers/diffusers/ ace-step/kokoro/vibevoice/qwen-asr/nemo/qwen-tts/fish-speech/ voxcpm/pocket-tts/neutts). Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: migrate 6 CUDA Python backends to free tier (Phase 5.3) vLLM/sglang stacks on CUDA 12 and CUDA 13 are the heaviest backends in the matrix — flash-attn intermediate layers can spike disk usage during build. setup-build-disk's /mnt relocation gives ~100 GB working space which fits the documented peak. Highest-risk batch of the arc-runner-set retirement; if any backend fails to build on free tier, the per-entry runs-on flip is the unit of revert. Backends migrated: -gpu-nvidia-cuda-{12,13}-{vllm,vllm-omni,sglang}. After this commit, .github/backend-matrix.yml has zero references to arc-runner-set or bigger-runner. The migration is complete. Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * ci: disable provenance on multi-registry digest pushes Root-caused on master via PR #9727's pilot: when docker/build-push-action@v7 pushes a single build to TWO registries simultaneously with push-by-digest=true, buildx generates a per-registry provenance attestation manifest (because mode=max — the default for push:true — includes the runner ID). That makes the resulting manifest-list digest diverge across registries: arm64 -cpu-faster-whisper build: image manifest: sha256:d3bdd34b... (identical, content-only) quay manifest list: sha256:66b4cfc8... (with quay attestation) dockerhub manifest list: sha256:e0733c3b... (with dockerhub attestation) steps.build.outputs.digest returns only one of the list digests (empirically the dockerhub one). The merge job then asks "quay.io/...@sha256:e0733c3b..." which doesn't exist on quay — that list has digest 66b4cfc8 there. Result: imagetools create fails with "not found" and the merge job fails (run 25581983094, job 75110021491). Setting provenance: false drops the per-registry attestation; the manifest-list digest becomes pure content, identical across both registries, and steps.build.outputs.digest works on either lookup. Applied to backend_build.yml and image_build.yml — both refactored to use the same multi-registry digest-push pattern in the prior PRs. 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>