CI/CD Principles

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# .github/workflows/ci-cd.yml
name: CI/CD Pipeline

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 18
      - run: npm ci
      - run: npm run lint
      - run: npm run build

  test:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v3
      - name: Run tests
        run: npm test

  deploy:
    runs-on: ubuntu-latest
    needs: test
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    steps:
      - uses: actions/checkout@v3
      - name: Build Docker image
        run: docker build -t ${{ secrets.DOCKER_USERNAME }}/myapp:latest .
      - name: Push Docker image
        run: docker push ${{ secrets.DOCKER_USERNAME }}/myapp:latest
      - name: Deploy to Kubernetes
        run: kubectl apply -f k8s/deployment.yaml

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name: Fast Feedback CI/CD

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

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 18
      - run: npm ci
      - name: Lint check
        run: npm run lint
      - name: ReviewDog Lint PR Review
        uses: reviewdog/action-eslint@v2
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          reporter: github-pr-review

  unit-test:
    needs: lint
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 18
      - run: npm ci
      - name: Run unit tests with fail fast
        run: npm test -- --bail --coverage
      - name: Upload coverage report
        uses: actions/upload-artifact@v3
        with:
          name: coverage-report
          path: coverage/
      - name: Publish JUnit Report
        uses: mikepenz/action-junit-report@v3
        with:
          report_paths: '**/junit.xml'

  security-check:
    needs: unit-test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Initialize CodeQL
        uses: github/codeql-action/init@v2
        with:
          languages: javascript
      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@v2
      - name: Snyk Security Scan
        uses: snyk/actions/node@v3
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}

  report:
    needs: [unit-test, security-check]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Download coverage report
        uses: actions/download-artifact@v3
        with:
          name: coverage-report
      - name: Allure Report Generation
        uses: simple-elf/allure-report-action@v1.8
        with:
          results_dir: coverage/
      - name: SonarQube Scan
        uses: sonarsource/sonarqube-scan-action@v1.2
        env:
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}

  notify:
    needs: report
    runs-on: ubuntu-latest
    if: failure()
    steps:
      - name: Slack Notification on Failure
        uses: slackapi/slack-github-action@v1.24.0
        with:
          channel-id: ${{ secrets.SLACK_CHANNEL_ID }}
          payload: |
            {
              "text": "🚨 워크플로우 실패: ${{ github.workflow }}\n${{ github.event.pull_request.html_url || github.event.commit.url }}\n문제 해결 가이드: https://company.wiki/ci-cd-troubleshooting"
            }

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name: Shift Left Testing Pipeline

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

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Lint with ESLint
        run: npm run lint
      - name: SonarQube Scan
        uses: sonarsource/sonarqube-scan-action@v1.2
        env:
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}

  unit-test:
    needs: lint
    runs-on: ubuntu-latest
    services:
      db:
        image: postgres:14
        ports:
          - 5432:5432
        env:
          POSTGRES_PASSWORD: postgres
    steps:
      - uses: actions/checkout@v4
      - name: Run unit tests with coverage
        run: npm run test:unit -- --coverage
      - name: Upload coverage report
        uses: actions/upload-artifact@v3
        with:
          name: coverage-report
          path: coverage/

  integration-test:
    needs: unit-test
    runs-on: ubuntu-latest
    services:
      db:
        image: postgres:14
        ports:
          - 5432:5432
        env:
          POSTGRES_PASSWORD: postgres
    steps:
      - uses: actions/checkout@v4
      - name: Run integration tests
        run: npm run test:integration

  coverage-gate:
    needs: [unit-test, integration-test]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Download coverage report
        uses: actions/download-artifact@v3
        with:
          name: coverage-report
      - name: Check coverage threshold
        run: npx istanbul check-coverage --statements 80 --branches 80 --functions 80 --lines 80

  pre-commit:
    if: github.event_name == 'push'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Pre-commit Lint & Test
        run: |
          npx lint-staged
          npm test

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name: Small Batch CI/CD

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

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci
      - run: npm run lint

  test:
    needs: lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci
      - run: npm test

  deploy:
    needs: test
    runs-on: ubuntu-latest
    if: github.event.pull_request.merged == true
    steps:
      - uses: actions/checkout@v4
      - name: Canary Deploy
        run: |
          # 예시: canary 배포 스크립트 실행
          ./scripts/deploy_canary.sh
      - name: Feature Flag 적용
        run: |
          # 예시: 플래그 관리 서비스 연동
          ./scripts/update_feature_flag.sh

  rollback:
    runs-on: ubuntu-latest
    if: failure()
    steps:
      - name: Rollback on Failure
        run: |
          # 예시: 롤백 스크립트 실행
          ./scripts/rollback.sh