docker-build-push.yaml

name: Build and Push Docker Image

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  packages: write
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    # Step 1: Checkout the code
    - name: Checkout code
      uses: actions/checkout@v3

    # Step 2: Set up Docker Buildx
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

    # Step 3: Log in to GitHub Container Registry
    - name: Log in to GitHub Container Registry
      uses: docker/login-action@v2
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    # Step 4: Get Date, Build Run Number, and Force Lowercase Repository Name
    - name: Get Date and Build Run Number for version tag
      id: version
      run: |
        echo "::set-output name=tag::$(date +'%Y.%m.%d').${{ github.run_number }}"
        echo "::set-output name=repo_lower::$(echo '${{ github.repository }}' | tr '[:upper:]' '[:lower:]')"

    # Step 5: Build the Docker image using the lowercase repository name
    - name: Build the Docker image
      run: |
        docker build -t ghcr.io/${{ steps.version.outputs.repo_lower }}/demo-frontend:${{ steps.version.outputs.tag }} -f demo-frontend/Dockerfile .

    # Step 6: Push the Docker image to GitHub Container Registry
    - name: Push the Docker image
      run: |
        docker push ghcr.io/${{ steps.version.outputs.repo_lower }}/demo-frontend:${{ steps.version.outputs.tag }}