# GitHub Actions Example

CI/CD pipeline with automated testing and deployment

## Code Example

```yaml
# GitHub Actions CI/CD Pipeline
name: CI/CD Pipeline

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

env:
  NODE_VERSION: '18'
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  # Lint and Test
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [16, 18, 20]
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ matrix.node-version }}
        cache: 'npm'
        
    - name: Install dependencies
      run: npm ci
      
    - name: Run linter
      run: npm run lint
      
    - name: Run tests
      run: npm run test:coverage
      
    - name: Upload coverage
      uses: codecov/codecov-action@v3
      with:
        file: ./coverage/lcov.info

  # Security Scan
  security:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Run security audit
      run: npm audit --audit-level=moderate
      
    - name: Run Snyk security scan
      uses: snyk/actions/node@master
      env:
        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}

  # Build and Push Docker Image
  build:
    needs: [test, security]
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      
    - name: Log in to Container Registry
      uses: docker/login-action@v3
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
        
    - name: Extract metadata
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
        tags: |
          type=ref,event=branch
          type=sha,prefix={{branch}}-
          
    - name: Build and push Docker image
      uses: docker/build-push-action@v5
      with:
        context: .
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}

  # Deploy to Staging
  deploy-staging:
    needs: build
    runs-on: ubuntu-latest
    environment: staging
    
    steps:
    - name: Deploy to staging
      run: |
        echo "Deploying to staging environment"
        # Add your deployment commands here
        
  # Deploy to Production
  deploy-production:
    needs: deploy-staging
    runs-on: ubuntu-latest
    environment: production
    if: github.ref == 'refs/heads/main'
    
    steps:
    - name: Deploy to production
      run: |
        echo "Deploying to production environment"
        # Add your production deployment commands here
```

## Files

- .github/workflows/ci-cd.yml
- Dockerfile
- docker-compose.yml

## Usage

```bash
# Install dependencies
npm install

# Run the example
npm start
```