name: buildx

on:
  pull_request:
    branches: develop
  push:
    branches: develop

jobs:
  buildx:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      # https://github.com/docker/setup-qemu-action
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      # https://github.com/docker/setup-buildx-action
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}
      # not pushing to dockerhub for now
      - name: Run Buildx
        run: |
          docker buildx build \
            --platform linux/386,linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x \
            --output "type=image,push=false" \
            --file ./docker/Dockerfile .