Containerization with Docker

Docker helps you package your applications and all their dependencies into standardized units called containers. Think of it as a lightweight virtual machine, but much more efficient!

For Clojure developers, Docker ensures your application runs exactly the same way on your machine, a teammate's machine, or in the cloud. No more "it works on my machine" problems!

At Docker's core are two main concepts:

• Images: These are read-only templates, like a blueprint for your application. They contain your code, libraries, and runtime.
• Containers: These are runnable instances of an image. You can start, stop, move, or delete a container without affecting the image.

A Dockerfile is a script that tells Docker how to build an image.