CI/CD Pipeline: Automate Your Deployments with GitHub Actions

Push Code → Run Tests → Build → Deploy to Staging → Deploy to Production
            (CI)        (CI)        (CD)                  (CD)

yaml
name: CI/CD Pipeline

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

jobs:
  test:
    runs-on: ubuntu-latest
    
    steps:
      - uses: actions/checkout@v4
      
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'
      
      - name: Install dependencies
        run: npm ci
      
      - name: Run linter
        run: npm run lint
      
      - name: Run tests
        run: npm test
      
      - name: Build
        run: npm run build

  deploy:
    needs: test
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    
    steps:
      - uses: actions/checkout@v4
      
      - name: Deploy to Vercel
        uses: amondnet/vercel-action@v25
        with:
          vercel-token: ${{ secrets.VERCEL_TOKEN }}
          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }}
          vercel-args: '--prod'

yaml
on:
  push:                    # On every push
  pull_request:            # On PR creation/update
  schedule:
    - cron: '0 0 * * 1'   # Every Monday at midnight
  workflow_dispatch:        # Manual trigger from UI

yaml
- name: Cache node modules
  uses: actions/cache@v3
  with:
    path: ~/.npm
    key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
    restore-keys: |
      ${{ runner.os }}-node-

yaml
jobs:
  test:
    strategy:
      matrix:
        node-version: [18, 20, 22]
        os: [ubuntu-latest, macos-latest]
    
    runs-on: ${{ matrix.os }}
    
    steps:
      - uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

yaml
env:
  NODE_ENV: production

steps:
  - name: Deploy
    env:
      DATABASE_URL: ${{ secrets.DATABASE_URL }}
      API_KEY: ${{ secrets.API_KEY }}
    run: npm run deploy

yaml
name: Production Pipeline

on:
  push:
    branches: [main]

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

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

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

  deploy-staging:
    needs: build
    runs-on: ubuntu-latest
    environment: staging
    steps:
      - run: echo "Deploy to staging..."

  deploy-production:
    needs: deploy-staging
    runs-on: ubuntu-latest
    environment: production
    steps:
      - run: echo "Deploy to production..."