# Deploying with CI/CD

CI/CD stands for Continuous Integration / Continuous Deployment. It means: every time you push code, automated systems test it and (if tests pass) deploy it. This is how professional teams ship software.

Why CI/CD Matters

Without CI/CD: 1. You write code locally 2. You manually test it (maybe) 3. You manually deploy to a server (somehow) 4. You hope nothing breaks 5. Something breaks at 3 AM

With CI/CD: 1. You push code to GitHub 2. Automated tests run immediately 3. If tests pass, code deploys automatically 4. If tests fail, you get notified before anything reaches production

GitHub Actions: Your CI Pipeline

GitHub Actions runs automated workflows when events happen (push, PR, schedule). Here is a real workflow:

# .github/workflows/ci.yml
name: CI

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