build-docker.yml

name: CD - Build Docker images

on:
  push:
    branches:
    - main
    tags:
    - 'v*'

jobs:
  docker:
    runs-on: ubuntu-latest
    timeout-minutes: 10 # Timeout after 10 min
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Docker meta
        id: docker_meta
        uses: crazy-max/ghaction-docker-meta@v1
        with:
          images: ghcr.io/readthedocs-fr/bin
          tag-sha: true
          tag-semver: |
            {{version}}
            {{major}}.{{minor}}

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

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

      - name: Cache Docker layers
        uses: actions/cache@v2
        with:
         path: /tmp/.buildx-cache
         key: buildx-${{ github.sha }}
         restore-keys: |
           buildx-

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1 
        with:
          registry: ghcr.io
          username: ${{ github.repository }}
          password: ${{ secrets.GHCR_PAT }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache
          push: ${{ github.event_name != 'pull_request' }}
          labels: ${{ steps.docker_meta.outputs.labels }}
          tags: ${{ steps.docker_meta.outputs.tags }}