Building a Complete CI/CD Pipeline for Node.js TypeScript Project, A Step-by-Step Guide

Introduction When I first started learning about CI/CD pipelines, I was overwhelmed by all the moving parts. GitHub Actions, Docker, testing, linting it seemed like a lot to grasp. After spending weeks figuring it all out, I decided to document my journey so others don't have to go through the same confusion. In this guide, I'll walk you through building a production-ready Node.js TypeScript application with a complete CI/CD pipeline. We'll start from absolutely nothing and end with a fully automated system that tests, builds, and deploys your code automatically. By the end of this tutorial, you'll have A Node.js TypeScript project with proper configuration Automated testing with Jest Code quality tools (ESLint and Prettier) Git hooks to catch issues before commits A GitHub Actions pipeline that runs on every push Docker containerization Automatic Docker image publishing Prerequisites Before we start, make sure you have Node.js installed (version 18 or higher) Git installed A GitHub ac