# Building the Image without pushing to confirm it is still buildable
# confirum functionality would unfortunately need way more resources
name: build container image
on:
  push:
    branches:
      - 'main'
      - 'development'
  pull_request_target:
    branches:
      - 'main'
      - 'development'

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: prepare docker-tag
        env:
          repository: ${{ github.repository }}
        run: echo "dockertag=${repository,,}" >> $GITHUB_ENV
      - name: Checkout
        uses: actions/checkout@v3
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      - name: Cache Docker layers
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: ${{ runner.os }}-buildx-
      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: .
          file: docker-build/Dockerfile
          platforms: linux/amd64
          push: false
          tags: ${{ env.dockertag }}:latest
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache