name: Publish Docker image

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

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest
    steps:
      - name: Check out the repo
        uses: actions/checkout@v2
        with:
          submodules: 'true'

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: ncarlier/webhookd
          tags: |
            type=edge
            type=semver,pattern={{version}}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
        with:
          image: tonistiigi/binfmt:latest
          platforms: arm64,arm

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

      - name: Log in to Docker Hub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN  }}      
      
      - name: Build and push Docker image (slim)
        uses: docker/build-push-action@v2
        with:
          context: .
          target: slim
          platforms: linux/amd64,linux/arm64,linux/arm/v7
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
      
      - name: Build and push Docker image (distrib)
        uses: docker/build-push-action@v2
        with:
          context: .
          target: distrib
          platforms: linux/amd64,linux/arm64,linux/arm/v7
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}-distrib
          labels: ${{ steps.meta.outputs.labels }}