name: Docker Image CI

on:
  push:
    tags:
      - 'v*'  # This will trigger the workflow on tags that start with 'v'

env:
  REGISTRY: ghcr.io
  USER: ${{ github.repository_owner }}
  IMAGE_NAME: ${{ github.repository }}

permissions:
  contents: read
  packages: write

jobs:
  build-push:
    runs-on: ubuntu-latest

    steps:

    - name: Check Out Repo
      uses: actions/checkout@v4

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3
      with:
        # arm64 specific
        platforms: arm64

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

    - name: Login to registry
      uses: docker/login-action@v3
      with:
          registry: ${{ env.REGISTRY }}
          username: ${{ env.USER }}
          password: ${{ secrets.GITHUB_TOKEN }}

    - name: Extract metadata (tags, labels) for Docker
      id: meta
      uses: docker/metadata-action@v5
      with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

    - name: Build and push Docker image
      uses: docker/build-push-action@v6
      with:
        context: .
        push: true
        file: ./Dockerfile
        platforms: linux/amd64,linux/arm64
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}