제18강: Docker와 Kubernetes 배포

AI가 생성한 CI/CD 파이프라인

# .github/workflows/deploy.yml
name: Build and Deploy

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

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

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [16.x, 18.x, 20.x]
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Use Node.js ${{ matrix.node-version }}
      uses: actions/setup-node@v3
      with:
        node-version: ${{ matrix.node-version }}
        cache: 'npm'
    
    - name: Install dependencies
      run: npm ci
    
    - name: Run linting
      run: npm run lint
    
    - name: Run tests
      run: npm run test:ci
    
    - name: Upload coverage
      uses: codecov/codecov-action@v3
      with:
        token: ${{ secrets.CODECOV_TOKEN }}

  build:
    needs: test
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2
    
    - name: Log in to Container Registry
      uses: docker/login-action@v2
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
    
    - name: Extract metadata
      id: meta
      uses: docker/metadata-action@v4
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
        tags: |
          type=ref,event=branch
          type=ref,event=pr
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=sha,prefix={{branch}}-
    
    - name: Build and push Docker image
      uses: docker/build-push-action@v4
      with:
        context: .
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
        cache-from: type=gha
        cache-to: type=gha,mode=max
        platforms: linux/amd64,linux/arm64

  deploy-staging:
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/develop'
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Install kubectl
      uses: azure/setup-kubectl@v3
      with:
        version: 'v1.27.0'
    
    - name: Configure kubectl
      run: |
        mkdir -p ~/.kube
        echo "${{ secrets.KUBE_CONFIG_STAGING }}" | base64 -d > ~/.kube/config
    
    - name: Deploy to staging
      run: |
        kubectl set image deployment/myapp myapp=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:develop-${{ github.sha }} -n staging
        kubectl rollout status deployment/myapp -n staging

  deploy-production:
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    environment:
      name: production
      url: https://api.myapp.com
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Install kubectl
      uses: azure/setup-kubectl@v3
      with:
        version: 'v1.27.0'
    
    - name: Configure kubectl
      run: |
        mkdir -p ~/.kube
        echo "${{ secrets.KUBE_CONFIG_PRODUCTION }}" | base64 -d > ~/.kube/config
    
    - name: Deploy to production
      run: |
        kubectl set image deployment/myapp myapp=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:main-${{ github.sha }} -n production
        kubectl rollout status deployment/myapp -n production
    
    - name: Run smoke tests
      run: |
        npm run test:smoke
    
    - name: Notify deployment
      uses: 8398a7/action-slack@v3
      with:
        status: ${{ job.status }}
        text: 'Production deployment completed!'
        webhook_url: ${{ secrets.SLACK_WEBHOOK }}
      if: always()