.github/workflows/docker-build.yml

# GitHub Actions Workflow - Docker Build
# Optional: Automate Docker image building and deployment

name: Docker Build and Test

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]

jobs:
  build:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v3
    
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2
    
    - name: Build Docker image
      run: |
        docker build -t alpha-index-app:${{ github.sha }} .
    
    - name: Test Docker image
      run: |
        docker run -d --name test-app -p 8501:8501 alpha-index-app:${{ github.sha }}
        sleep 10
        curl -f http://localhost:8501/_stcore/health || exit 1
        docker stop test-app
    
    - name: Login to Docker Hub (optional)
      if: github.event_name == 'push' && github.ref == 'refs/heads/main'
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}
    
    - name: Push to Docker Hub (optional)
      if: github.event_name == 'push' && github.ref == 'refs/heads/main'
      run: |
        docker tag alpha-index-app:${{ github.sha }} ${{ secrets.DOCKER_USERNAME }}/alpha-index-app:latest
        docker push ${{ secrets.DOCKER_USERNAME }}/alpha-index-app:latest