Docker is an open-source containerization platform used for building, packaging, and running applications. It allows developers to package applications and their dependencies into an independent unit called a container, enabling deployment and execution across different environments without being affected by the underlying operating system and hardware.
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Below are the methods for installing Docker and Docker Compose on Debian, Ubuntu, and CentOS

Debian Installation

Install Required Packages

Add Docker's GPG Public Key and Add Repository

Official Source

USTC Mirror Source

Update Index and Install

Ubuntu Installation

Install Required Packages

Add Docker's GPG Public Key and Add Repository

Official Source

USTC Mirror Source

Update Index and Install

CentOS Installation

Check for and Remove Old Docker Versions on the System

Download and Install yum-utils

Set Docker Installation Source

Official Source:

USTC Mirror Source:

Update Index and Install

Start Docker and Enable Auto-Start on Boot

Common Docker Commands

Common Docker Compose Commands

Some content referenced from https://help.mirrors.cernet.edu.cn/docker-ce