GitHub built-in CICD tool

Just write deploy.yml in .github/workflows/

When I push code → GitHub auto runs scripts.

• build your project
• run tests
• deploy to server
• send notifications
• clean up files
• check code style
• run cron jobs

✅ CI = Continuous Integration

When you push code:

• GitHub automatically builds your project
• runs tests
• checks code style
• catches bugs early

✅ CD = Continuous Deployment

After building OK → GitHub automatically deploys: