CI/CD Pipelines

CI/CD Pipelines

Overview

Continuous Integration (CI) runs checks on every change. Continuous Delivery/Deployment (CD) automates releasing changes to environments.

Typical stages

• Lint and format
• Unit and integration tests
• Build and artifact creation
• Deploy to staging/prod

Example (GitHub Actions)

name: ci
on: [pull_request]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 20
      - run: npm ci
      - run: npm test -- --ci

Checklist

• Protect main branch with required checks
• Keep pipelines fast (<10 min)
• Cache dependencies

Resources

• docs.github.com/actions
• CircleCI, GitLab CI docs