CI/CD Best Practices with GitHub Actions

GitHub Actions makes CI/CD accessible to every developer. Let's explore best practices for efficient pipelines.

Basic Workflow Structure

name: CI/CD Pipeline

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

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
      - run: npm ci
      - run: npm run build

Best Practices

1. Cache Dependencies

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

2. Run Tests in Parallel

Split tests across multiple jobs for faster feedback.

3. Use Matrix Strategy

Test across multiple versions:

strategy:
  matrix:
    node-version: [18, 20, 22]

4. Fail Fast

Configure to stop on first failure in matrix builds.

Conclusion

Start simple and iterate. GitHub Actions provides powerful tools for professional CI/CD.