release-containers.yml

name: Release Containers

on:
  push:
    tags: [ 'v*' ]


jobs:
  release-containers:
    name: Build and Push
    runs-on: ubuntu-latest
    steps:

    - uses: actions/checkout@v2

    - name: Login to ghcr.io Docker registry
      uses: docker/login-action@v1
      with:
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Compute Docker container image addresses
      run: |
        DOCKER_REPOSITORY="ghcr.io/${GITHUB_REPOSITORY,,}"
        DOCKER_TAG="${GITHUB_REF:11}"
        echo "DOCKER_REPOSITORY=${DOCKER_REPOSITORY}" >> $GITHUB_ENV
        echo "DOCKER_TAG=${DOCKER_TAG}" >> $GITHUB_ENV
        echo "Using: ${DOCKER_REPOSITORY}/*:${DOCKER_TAG}"

    - name: 'Pull latest existing Docker container image: server'
      run: docker pull "${DOCKER_REPOSITORY}/server:latest" || true

    - name: 'Pull latest existing Docker container image: client'
      run: docker pull "${DOCKER_REPOSITORY}/client:latest" || true

    - name: 'Build Docker container image: server'
      run: |
        docker build \
            --cache-from "${DOCKER_REPOSITORY}/server:latest" \
            --tag "${DOCKER_REPOSITORY}/server:latest" \
            --tag "${DOCKER_REPOSITORY}/server:${DOCKER_TAG}" \
            ./src/server

    - name: Push Docker container image server:latest"
      run: docker push "${DOCKER_REPOSITORY}/server:latest"

    - name: Push Docker container image server:v*"
      run: docker push "${DOCKER_REPOSITORY}/server:${DOCKER_TAG}"

    - name: 'Build Docker container image: client'
      run: |
        docker build \
            --cache-from "${DOCKER_REPOSITORY}/client:latest" \
            --tag "${DOCKER_REPOSITORY}/client:latest" \
            --tag "${DOCKER_REPOSITORY}/client:${DOCKER_TAG}" \
            ./src/client

    - name: Push Docker container image client:latest"
      run: docker push "${DOCKER_REPOSITORY}/client:latest"

    - name: Push Docker container image client:v*"
      run: docker push "${DOCKER_REPOSITORY}/client:${DOCKER_TAG}"