What is Docker in Simple Terms?
What is Docker? Docker is a tool that makes it easier to create, deploy, and run applications using containers. Why use Docker? Imagine you built an app that works perfectly on your machine. You send it to your teammate, and suddenly… it doesn’t work! Different OS, different dependencies, different versions — it’s a mess. Docker solves this by putting your app and everything it needs into a container. A container is like a box with your app, its settings, and all dependencies — isolated and portable. ...