.github/workflows/build_docker_image.yaml

# Workflow which builds are publishes Docker image used for website development.
# Pre-built image can speed up the development since user doesn't need to build it
# locally first.
name: Build Docker Image

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: "libcloud-site-dev"

jobs:
  build_docker_image:
    name: Build Docker Image
    runs-on: ubuntu-latest
    # NOTE: Emulated ARM build is slow...
    timeout-minutes: 30
    permissions:
      contents: read
      packages: write

    steps:
      - uses: actions/checkout@master
        with:
          fetch-depth: 1

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Log in to the Github Container registry
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ghcr.io/apache/libcloud-site-dev:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max