build.yaml

name: Build OCI image
on: push
jobs:
  Build:
    runs-on: ubuntu-latest
    env:
      IMAGE: ghcr.io/${{ github.repository }}
    permissions:
      attestations: write
      contents: read
      id-token: write
      packages: write

    steps:
      - uses: actions/checkout@v4

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: docker/metadata-action@v5
        id: meta
        with:
          images: ${{ env.IMAGE }}

      - uses: docker/bake-action@v5
        id: bake
        with:
          files: |
            ./docker-bake.hcl
            ${{ steps.meta.outputs.bake-file }}
          sbom: true
          push: true

      - uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.IMAGE }}
          subject-digest: ${{ steps.bake.outputs.digest }}
          push-to-registry: true