name: docker-publish-gw

on:
  push:
    paths:
      - 'gateway/**'

jobs:
  docker-gw:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Cache Docker layers
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache/gw
          key: ${{ runner.os }}-buildx-${{ github.sha }}-gw
          restore-keys: |
            ${{ runner.os }}-buildx-gw
      -
        name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: ./gateway
          push: true
          tags: ${{ secrets.DOCKERHUB_TAGS_GW }}
          cache-from: type=local,src=/tmp/.buildx-cache/gw
          cache-to: type=local,dest=/tmp/.buildx-cache-new/gw
      -
        # Hackfix to cleanup cache; replace after buildx 0.6 and BuildKit 0.9 are GA
        # https://github.com/docker/build-push-action/pull/406#issuecomment-879184394
        name: Move cache fix
        run: |
          rm -rf /tmp/.buildx-cache/gw
          mv /tmp/.buildx-cache-new/gw /tmp/.buildx-cache/gw