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Intermediate 20 min readModule: Module 8: CI/CD Pipelines with GitHub Actions

Automated CI/CD Pipelines with GitHub Actions

Build automated testing, linting, Docker build, and cloud deployment pipelines triggered on git push.

What You Will Learn in This Lesson

  • GitHub Actions workflow syntax (triggers, jobs, steps, runners)
  • Automating test suites (npm test) on pull requests
  • Securely deploying to production with GitHub Repository Secrets

Introduction & Core Concept

Continuous Integration (CI) and Continuous Deployment (CD) automate the building, testing, and shipping of software upon every git commit.
WHY DOES THIS MATTER IN THE REAL WORLD?

Automated CI pipelines catch breaking changes and test failures before bad code is ever merged to main.

GitHub Actions CI Pipeline (.github/workflows/ci.yml)

yaml
yaml
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name: Build & Test CI
on: [push, pull_request]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
      - run: npm ci
      - run: npm run lint
      - run: npm test
      - run: npm run build

Line-by-Line Technical Breakdown

1Secrets (API tokens, AWS keys) are encrypted and masked in CI logs.

Try It Yourself (Interactive Editor)

Modify the code in real-time and click Run to test live browser output and console logs.

Intelligent Code Runner & Live Sandbox[YAML]
YAML SOURCE EDITOR
Interactive Live Code

Industry Best Practices & Professional Standards

  • Never hardcode credentials in workflow files; always use secrets.SECRET_NAME.

Lesson Summary & Core Takeaways

  • CI/CD pipelines automate testing and deployment with absolute consistency.