Setting Up a CI/CD Pipeline with GitHub Actions

By Kevin Zhao | March 15, 2026

Continuous Integration and Continuous Deployment (CI/CD) pipelines automate the process of testing and deploying code changes. GitHub Actions makes this accessible directly within your repository.

Creating Your First Workflow

GitHub Actions workflows are defined in YAML files stored in the .github/workflows/ directory. Here's a basic workflow that runs tests on every push:

name: CI
on: [push, 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

Adding Deployment

Once your tests pass, you can add a deployment step. For a Node.js application deploying to a cloud provider, add a deployment job that depends on the test job.

Environment Variables and Secrets

Never hardcode sensitive values in your workflow files. Use GitHub's encrypted secrets feature to store API keys, tokens, and credentials. Reference them in your workflow with the ${{ secrets.SECRET_NAME }} syntax.

Advanced Features

GitHub Actions supports matrix builds for testing across multiple versions, caching for faster builds, and reusable workflows for sharing common patterns across repositories. Composite actions let you bundle multiple steps into a single reusable action.

With GitHub Actions, you can automate everything from simple linting to complex multi-stage deployments. Start simple and gradually add complexity as your needs grow.