Docker key terms simplified

Containerization is a must-have skill for DevOps engineers and software developers alike. It is essential for creating robust, deployable applications. In this article, I will explain the Docker concepts every developer needs to know and provide a hands-on example. Table of Contents Prerequisites What is Docker? Why is Docker Important Idea of How Docker Works What is a Docker Image? Dockerfile Commands Explanation Running the Image What is a Docker Container? How to Run a Docker Container Docker Volumes Final Thoughts Prerequisites: to follow along this article be sure to Download and install Docker Desktop. Ensure Docker is running (especially on macOS or Windows) while practicing. What is docker: Docker is a software platform that helps package and run applications on any machine with the exact environment you have configured. Teams often face the "it works on my machine" issue, where an application runs locally but crashes when a teammate tries to run it. This happens due to: Misma