name: DockerHub

on:
  workflow_dispatch:
  push:
    branches:
      - master
    tags:
      - '*.*.*'
    paths-ignore:
      - 'test/*'
      - '.gitignore'
      - '.travis.yml'
      - 'docker-compose-separate-containers.yml'
      - 'docker-compose.yml'
      - 'LICENSE'
      - 'Makefile'
      - '*.md'

jobs:
  multiarch-build:
    runs-on: ubuntu-latest
    steps:

      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
        
      - name: Get Docker tags for Debian based image
        id: docker_meta_debian
        uses: crazy-max/ghaction-docker-meta@v1
        with:
          images: nginxproxy/nginx-proxy
          tag-semver: |
            {{version}}
            {{major}}.{{minor}}
      
      - name: Get Docker tags for Alpine based image
        id: docker_meta_alpine
        uses: crazy-max/ghaction-docker-meta@v1
        with:
          images: nginxproxy/nginx-proxy
          tag-semver: |
            {{version}}-alpine
            {{major}}.{{minor}}-alpine

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      
      - name: Login to DockerHub
        uses: docker/login-action@v1 
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      
      - name: Build and push the Debian based image
        id: docker_build_debian
        uses: docker/build-push-action@v2
        with:
          file: Dockerfile
          platforms: linux/amd64
          push: true
          tags: |
            ${{ github.ref != 'refs/heads/master' && steps.docker_meta_debian.outputs.tags || '' }}
            ${{ github.ref == 'refs/heads/master' && 'nginxproxy/nginx-proxy:latest' || '' }}
          labels: ${{ steps.docker_meta.outputs.labels }}

      - name: Build and push the Alpine based image
        id: docker_build_alpine
        uses: docker/build-push-action@v2
        with:
          file: Dockerfile.alpine
          platforms: linux/amd64
          push: true
          tags: |
            ${{ github.ref != 'refs/heads/master' && steps.docker_meta_alpine.outputs.tags || '' }}
            ${{ github.ref == 'refs/heads/master' && 'nginxproxy/nginx-proxy:alpine' || '' }}
          labels: ${{ steps.docker_meta.outputs.labels }}

      - name: Images digests
        run: |
          echo ${{ steps.docker_build_debian.outputs.digest }}
          echo ${{ steps.docker_build_alpine.outputs.digest }}