docker-private.yml

name: Publish Docker Private Image

on:
  workflow_dispatch: 

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

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Prepare Docker Metadata
        id: prep
        run: |
          REPO_LC=$(echo "${{ github.event.repository.name }}" | tr '[:upper:]' '[:lower:]')
          echo "repo=${REPO_LC}" >> $GITHUB_OUTPUT
          echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT        

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_TOKEN }}

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

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          # This builds once and applies both tags to a single image
          tags: |
            ${{ secrets.DOCKER_USERNAME }}/ppg:latest
            ${{ secrets.DOCKER_USERNAME }}/ppg:${{ steps.prep.outputs.date }}