Docker is a tool designed to make it easier to create, deploy, and run applications using containers. Containers allow you to package up an application with all parts it needs, such as libraries and other dependencies, and ship it all out as one package. Here’s a quick and easy-to-understand cheat sheet to get you started. What is Docker? Docker is a platform for developing, shipping, and running applications in containers. Containers are lightweight, portable, and self-sufficient environments that run applications and their dependencies. Key Concepts in Docker Docker Image : A read-only template used to create containers. For example, an image could contain a Python application, including everything it needs to run. Docker Container : A running instance of a Docker image. Dockerfile : A text file that contains all the instructions to build a Docker image. Docker Hub : A registry for sharing Docker images. You can pull or push images from and to Docker Hub. Common Docker Com...