docker-publish.yml

name: Docker Image Publish

on:
  push:
    # Publish `v1.2.3` tags as releases.
    tags:
      - v*

jobs:
  # Run tests.
  test:
    runs-on: ubuntu-latest

    steps:
      -
        name: Checkout
        uses: actions/checkout@v3
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      -
        name: Run tests
        uses: docker/build-push-action@v3
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: false

  # Push image to GitHub Packages.
  push:
    # Ensure test job passes before pushing image.
    needs: test

    runs-on: ubuntu-latest
    if: github.event_name == 'push'

    steps:
      -
        name: Checkout
        uses: actions/checkout@v3
      -
        name: Set the version
        run: |
          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')

          # Strip "v" prefix from tag name
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo ${VERSION} | sed -e 's/^v//')
          echo "VERSION=${VERSION}" >> $GITHUB_ENV
          echo "VERSION=${{ env.VERSION }}"
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      -
        name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.CR_PAT }}
      -
        name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ghcr.io/${{ github.repository_owner }}/charts-ci/image:${{ env.VERSION }}