GitHub Actions for DevOps: The Complete CI/CD Setup Guide (2026)

GitHub Actions has become the default CI/CD tool for most engineering teams. Here's how to set up a production-grade pipeline from scratch. Why GitHub Actions? Free for public repos , 2,000 minutes/month for private Native GitHub integration — no third-party OAuth, no webhook setup Massive marketplace — 20,000+ pre-built actions Matrix builds — test across multiple OS/language versions simultaneously Basic Pipeline Structure Every GitHub Actions workflow lives in .github/workflows/ . Here's a production-ready starting point: name : CI/CD Pipeline on : push : branches : [ main , develop ] pull_request : branches : [ main ] jobs : test : runs-on : ubuntu-latest steps : - uses : actions/checkout@v4 - uses : actions/setup-node@v4 with : node-version : 20 cache : ' npm' - run : npm ci - run : npm test - run : npm run lint build : needs : test runs-on : ubuntu-latest steps : - uses : actions/checkout@v4 - uses : actions/setup-node@v4 with : node-version : 20 cache : ' npm' - run : npm ci - r