ghcr.yml

name: Publish GitHub Container Registry
on:
  push:
    branches: ['main']
    tags:
      - v*

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

permissions:
  contents: read

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      packages: write
      attestations: write
      id-token: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
      - name: Log in to the Container registry
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@369eb591f429131d6889c46b94e711f089e6ca96 # v5.6.1
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          # pushes to the default branch get labeled latest, otherwise use tag name
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=tag

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6.10.0
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@7668571508540a607bdfd90a87a560489fe372eb # v2.1.0
        # only publish attestation for our release builds
        if: startsWith(github.ref, 'refs/tags/v')
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true