CI/CD: from "it worked on my machine" to automated deployment

2025-11-14

A Simple Guide for Beginners: Jenkins → GitLab → GitHub → GitOps

Hello!
Are you just starting your DevOps journey or tired of hearing “and we use CI/CD” in interviews? Want to finally understand why code that works on your laptop fails on the server?

This article is your first step toward automation. And it will really be easy.
We’ll break everything down, without overloaded terms and with examples.

What is CI/CD (very simple)

CI/CD is when you press git push and everything else happens automatically.