When I started learning Docker, I quickly realized that understanding a few core concepts and commands makes working with containers much easier. Instead of memorizing commands, I wanted to understand what Docker does and why each command is useful.
In this article, I'm sharing my beginner notes. If you're just getting started with Docker, this guide should help you build a solid foundation.
What is Docker?
Docker is a containerization platform that allows you to package an application together with all of its dependencies. This ensures the application runs consistently across different environmentsāwhether it's your local machine, a testing server, or production.
One of Docker's biggest advantages is the famous phrase:
