name: Build Hello World Image

on:
  push:
    branches:
      - main
    workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Build Hello World Docker image
        run: |
          echo -e 'FROM alpine\nCMD echo Hello, World!' > Dockerfile
          docker build -t hello-world:latest .

      - name: Login to Container Registry
        uses: docker/login-action@v3
        with:
          registry: git.hamburg.ccc.de
          username: containertest_package
          password: ${{ secrets.containertest_package }}
      
      - name: Push Docker image to Container Registry
        run: |
          docker tag hello-world:latest git.hamburg.ccc.de/ccc/sunders/tmp:latest
          docker push git.hamburg.ccc.de/ccc/sunders/tmp:latest