docker-publish.yml

name: Docker publish

on:
  schedule:
    # @weekly
    - cron: "0 0 * * SUN"
  push:
    branches: ["main"]

jobs:
  publish:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write
    strategy:
      matrix:
        distro: [ubuntu]
    env:
      REGISTRY: ghcr.io
      IMAGE_NAME: ${{ github.repository_owner }}/${{ matrix.distro }}

    steps:
      # Docker build using Git context, no need to use checkout action
      # - name: Checkout repository
      #   uses: actions/checkout@v4

      # Add support for more platforms with QEMU (optional)
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      # By default, builder driver is `docker`, which currently not supported
      # building multi-platform images or exporting cache.
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log into ${{ env.REGISTRY }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        uses: docker/metadata-action@v5
        id: meta
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=22.04
          labels: |
            org.opencontainers.image.title=Ubuntu 22.04 Actions runner images
            org.opencontainers.image.description=Ubuntu 22.04 docker image used of (GitHub) Actions runner
          annotations: |
            org.opencontainers.image.title=Ubuntu 22.04 Actions runner images
            org.opencontainers.image.description=Ubuntu 22.04 docker image used of (GitHub) Actions runner

      - name: Docker builder info
        run: |
          set -x
          docker buildx version
          docker buildx ls
          docker buildx inspect

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        id: publish
        with:
          pull: true
          push: true
          sbom: true
          provenance: true
          context: "{{defaultContext}}:${{ matrix.distro }}"
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: |
            linux/amd64
            linux/arm64

      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v1
        id: attest
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          subject-digest: ${{ steps.publish.outputs.digest }}
          push-to-registry: true