name: Docker

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
  release:
    types: [ published ]

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
    - uses: docker/metadata-action@v6
      id: meta
      with:
        images: |
          icinga/icinga-notifications
        tags: |
          type=ref,event=branch,enable={{is_default_branch}}
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}

    - uses: docker/setup-qemu-action@v4

    - uses: docker/setup-buildx-action@v4

    - if: github.event_name != 'pull_request'
      uses: docker/login-action@v4
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Build and push
      uses: docker/build-push-action@v7
      with:
        labels: ${{ steps.meta.outputs.labels }}
        platforms: linux/amd64,linux/arm64
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta.outputs.tags }}
        # Keep the .git to allow including the commit in the --version output, see also:
        # https://docs.docker.com/build/building/context/#keep-git-directory
        build-args: |
          BUILDKIT_CONTEXT_KEEP_GIT_DIR=1
