Containers, Dockerfile and Docker Commands

Before starting to perform practical tasks with Docker, let's familiarize ourselves with the key concepts of this technology.

Containers

A container is a way of packaging applications and their dependencies so they can run the same on any computer. They help avoid compatibility issues and ensure that your program will work wherever you run it.

Dockerfile

A Dockerfile is a simple text file that describes how Docker should build your container. You can specify what programs you need to install and how to configure your environment.

Docker Commands

Docker comes with commands that help you create, run, and manage your containers. For example, the docker build command is used to create a container, and docker run is used to run it.