docker-publish.yml

name: Docker
on:
  push:
    branches:
      - "main"
  pull_request:
    branches:
      - "main"

env:
  IMAGE_NAME: docker-alpine-aws-cli
  PLATFORM: "linux/amd64,linux/arm64"

jobs:
  test-multiarch:
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/main'
    strategy:
      matrix:
        tag:
          # To keep the number of builds low, we only keep the latest two versions of the AWS CLI
          - 2.15.0-3.18
          - 2.15.0-3.17
          - 2.15.0-3.16
          - 2.13.18-3.18
          - 2.13.18-3.17
          - 2.13.18-3.16
    steps:
      - uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Only build the images
        run: |
          AWS_CLI_VERSION="$(echo "${{ matrix.tag }}" | awk '{split($0,a,"-"); print a[1]}')"
          ALPINE_VERSION="$(echo "${{ matrix.tag }}" | awk '{split($0,a,"-"); print a[2]}')"
          AUTHOR=$(echo "${{ github.repository_owner }}" | tr '[A-Z]' '[a-z]')
          # Build process
          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME:${AWS_CLI_VERSION}-alpine${ALPINE_VERSION}
          # Change all uppercase to lowercase.
          IMAGE_ID=$(echo "${IMAGE_ID}" | tr '[A-Z]' '[a-z]')
          echo "IMAGE_ID=${IMAGE_ID}"
          docker buildx build . \
            --platform "${PLATFORM}" \
            --build-arg AUTHOR=${AUTHOR} \
            --build-arg IMAGE_NAME=${IMAGE_NAME} \
            --build-arg ALPINE_VERSION=${ALPINE_VERSION} \
            --build-arg AWS_CLI_VERSION=${AWS_CLI_VERSION} \
            -t ${IMAGE_ID}

  deploy-multiarch:
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    strategy:
      matrix:
        tag:
          # To keep the number of builds low, we only keep the latest two versions of the AWS CLI
          - 2.15.0-3.18
          - 2.15.0-3.17
          - 2.15.0-3.16
          - 2.13.18-3.18
          - 2.13.18-3.17
          - 2.13.18-3.16
    steps:
      - uses: actions/checkout@v3

      # Refs https://github.com/docker/login-action#github-container-registry
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Build and push images to GitHub Container Registry
        run: |
          AWS_CLI_VERSION="$(echo "${{ matrix.tag }}" | awk '{split($0,a,"-"); print a[1]}')"
          ALPINE_VERSION="$(echo "${{ matrix.tag }}" | awk '{split($0,a,"-"); print a[2]}')"
          AUTHOR=$(echo "${{ github.repository_owner }}" | tr '[A-Z]' '[a-z]')
          # Build process
          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME:${AWS_CLI_VERSION}-alpine${ALPINE_VERSION}
          # Change all uppercase to lowercase.
          IMAGE_ID=$(echo "${IMAGE_ID}" | tr '[A-Z]' '[a-z]')
          echo "IMAGE_ID=${IMAGE_ID}"
          docker buildx build --push . \
            --platform "${PLATFORM}" \
            --build-arg AUTHOR=${AUTHOR} \
            --build-arg IMAGE_NAME=${IMAGE_NAME} \
            --build-arg ALPINE_VERSION=${ALPINE_VERSION} \
            --build-arg AWS_CLI_VERSION=${AWS_CLI_VERSION} \
            -t ${IMAGE_ID}