feat: add :cpu tag for amd64 CPU-only image

Introduces a VARIANT=gpu|cpu build arg to the Dockerfile. The cpu variant uses ubuntu:22.04 (no CUDA base), installs torch+cpu and onnxruntime (no GPU deps) via a separate pyproject-cpu.toml / uv-cpu.lock, and is published as :cpu (dev-cpu on the dev branch) via a new build-cpu CI job. Saves ~2 GB over the default GPU image. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-12 14:50:12 +00:00
parent 99185c2da9
commit ee585d4bae
5 changed files with 2070 additions and 17 deletions
@@ -126,3 +126,58 @@ jobs:
      - name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ steps.tags.outputs.tags }}
+
+  build-cpu:
+    name: Build CPU-only (amd64)
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Free up disk space
+        run: |
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /opt/ghc
+          sudo rm -rf "/usr/local/share/boost"
+          sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+          echo "Disk space freed."
+
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v4
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Determine CPU image tag
+        id: cpu-tag
+        run: |
+          if [ "${{ github.ref_name }}" = "dev" ]; then
+            echo "tag=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:dev-cpu" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:cpu" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Build and push CPU image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64
+          build-args: VARIANT=cpu
+          cache-from: type=gha,scope=linux/amd64-cpu
+          cache-to: type=gha,mode=max,scope=linux/amd64-cpu
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          push: true
+          tags: ${{ steps.cpu-tag.outputs.tag }}
+
+      - name: Inspect CPU image
+        run: |
+          docker buildx imagetools inspect ${{ steps.cpu-tag.outputs.tag }}