docker-publish.yml

name: Docker

# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

on:
  push:
    branches: [ master ]
    # Publish semver tags as releases.
    tags: [ 'v*.*.*' ]
    paths:
      - .github/workflows/*.yml
      - VERSION
      - Dockerfile
  pull_request:
    branches: [ master ]

env:
  # Use docker.io for Docker Hub if empty
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ github.repository }}
  DOCKER_REPO: ghcr.io/${{ github.repository }}
  DOCKER_REPO_DEV: ghcr.io/${{ github.repository }}-dev
  IMAGE_DOCKER_HUB: belphemur/mailcatcher-exim-courrier

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - platform: "linux/amd64"
            scan: true
            needs_qemu: false
          - platform: "linux/arm64"
            scan: false
            needs_qemu: true
    services:
      registry:
        image: registry:2
        ports:
          - 5000:5000
    permissions:
      contents: read
      packages: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write
      actions: read
      security-events: write
    steps:
      - name: Lowercase Image name
        run: |
          echo "IMAGE=${IMAGE_NAME@L}" >>${GITHUB_ENV}
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set version
        id: version
        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
      - name: Set repo
        id: repo
        run: |
          if [[ $GITHUB_REF == "refs/heads/master" || $GITHUB_REF == refs/tags/* ]]; then 
            echo "repo=${DOCKER_REPO@L}" >> $GITHUB_OUTPUT
          else 
            echo "repo=${DOCKER_REPO_DEV@L}" >> $GITHUB_OUTPUT
          fi
      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ steps.repo.outputs.repo }}
          tags: |
            type=semver,pattern={{version}},value=${{ steps.version.outputs.version }}
      - name: Set up QEMU
        if: matrix.needs_qemu
        uses: docker/setup-qemu-action@v3
      # Workaround: https://github.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver-opts: network=host
      - name: Build image without push to registry ${{ matrix.platform }}
        uses: docker/build-push-action@v5
        if: matrix.scan
        with:
          context: .
          file: ./Dockerfile
          platforms: ${{ matrix.platform }}
          push: true
          tags: localhost:5000/${{env.IMAGE}}:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
            VCS_REF=$(git rev-parse --short HEAD)
            VERSION=${{ steps.version.outputs.version }}
      - name: Scan image
        id: scan
        uses: anchore/scan-action@v3
        if: matrix.scan
        with:
          image: localhost:5000/${{env.IMAGE}}:latest
          fail-build: true
          severity-cutoff: critical
          output-format: sarif
          add-cpes-if-none: true
      - name: Upload Anchore scan SARIF report
        uses: github/codeql-action/upload-sarif@v3
        if: matrix.scan && always()
        with:
          sarif_file: ${{ steps.scan.outputs.sarif }}
      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build and push Docker image ${{ matrix.platform }}
        id: build-and-push
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: ${{ matrix.platform }}
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
            VCS_REF=$(git rev-parse --short HEAD)
            VERSION=${{ steps.version.outputs.version }}

      - name: Extract Docker Hub metadata
        id: meta-hub
        if: github.event_name != 'pull_request'
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_DOCKER_HUB }}
          tags: |
            type=semver,pattern={{version}},value=${{ steps.version.outputs.version }}
      - name: Log into registry Docker hub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Build and push Docker image ${{ matrix.platform }} to Docker Hub
        id: build-and-push
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: ${{ matrix.platform }}
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta-hub.outputs.tags }}
          labels: ${{ steps.meta-hub.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
            VCS_REF=$(git rev-parse --short HEAD)
            VERSION=${{ steps.version.outputs.version }}