name: Container build
"on":
  push:
    tags:
      - "*" # Push events to any tag
    branches:
      - "main"

  workflow_dispatch:
    inputs:
      tag:
        description: "Container tag to use for the build"
        required: true
        default: "test"

jobs:
  test:
    uses: ./.github/workflows/unit-tests.yml

  build:
    name: Build container
    runs-on: ubuntu-24.04
    needs: test

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - # Add support for more platforms with QEMU
        # https://github.com/docker/setup-qemu-action
        name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/${{ github.repository_owner }}/bgpq4
          tags: |
            # pick up tag provided from workflow_dispatch user's input
            type=raw,value=${{ inputs.tag }}
            type=ref,event=tag
            type=ref,event=branch
            # git short commit
            type=sha

      - name: Login to GitHub Container Registry
        if: github.repository_owner == 'bgp'
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          file: .github/images/alpine:3.Dockerfile
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.repository_owner == 'bgp' }}
          tags: ${{ steps.meta.outputs.tags }}