docker-publish.yml

name: Docker Build and Publish

on:
  push:
    branches: [ main ]
  release:
    types: [ published ]

env:
  GHCR_IMAGE: ghcr.io/${{ github.repository }}
  DOCKER_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/gpu-monitor

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write  # Needed for provenance signing

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver-opts: |
            image=moby/buildkit:latest

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.GHCR_IMAGE }}
            ${{ env.DOCKER_IMAGE }}
          tags: |
            type=ref,event=branch
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha,prefix={{date 'YYYYMMDD'}}-
          labels: |
            org.opencontainers.image.title=GPU Monitor
            org.opencontainers.image.description=Real-time NVIDIA GPU monitoring dashboard
            org.opencontainers.image.vendor=${{ github.repository_owner }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          sbom: true
          provenance: mode=max
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Export SBOM
        run: |
          mkdir -p sbom
          # Wait a moment for the image to be available
          sleep 10
          DIGEST=$(docker buildx imagetools inspect ${{ env.GHCR_IMAGE }}:main --raw)
          echo "Image digest: $DIGEST"
          docker buildx imagetools inspect ${{ env.GHCR_IMAGE }}@$DIGEST \
            --format '{{ json .SBOM }}' > sbom/bom.json || echo "SBOM export failed but continuing"

      # Optional: Upload SBOM
      - name: Upload SBOM
        uses: actions/upload-artifact@v3
        with:
          name: sbom
          path: sbom/bom.json
          retention-days: 5