Docker Tutorial for Beginners (Step by Step Guide) Docker has become a game changer for developers . It allows you to package applications with all dependencies and run them anywhere locally, on servers, or in the cloud. In this tutorial, we’ll explore Docker from the ground up, with examples for a simple ASP.NET Core application with MySQL . What is Docker? Docker is a platform for developing, shipping, and running applications in containers. What is Container - A lightweight, standalone package that includes everything an app needs to run (code, libraries, runtime, OS-level dependencies). Key benefits Consistent environment across machines Isolation from other apps Easy deployment in cloud services Real-world analogy: Think of Docker as packing your app into a “self-sufficient box” . No matter where you take the box, the app works the same. Why Use Docker? Consistency - Works the same on all environments (dev, test, production). Portability - Runs on any sy...