一、前言

使用docker虚拟化技术，可以帮助很多测试人员，开发人员快速测试，部署和上线网站应用，提高办公效率，一般使用linux系统安装docker。接下来一起看一下linux系统安装docker的步骤。

二、准备&安装

1.更换国内源：

vim /etc/apt/sources.list

deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy main restricted
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy main restricted
deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-updates main restricted
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-updates main restricted
deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy universe
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy universe
deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-updates universe
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-updates universe
deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy multiverse
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy multiverse
deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-updates multiverse
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-updates multiverse
deb http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu/ jammy-backports main restricted universe multiverse
deb http://mirrors.cloud.aliyuncs.com/ubuntu jammy-security main restricted
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu jammy-security main restricted
deb http://mirrors.cloud.aliyuncs.com/ubuntu jammy-security universe
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu jammy-security universe
deb http://mirrors.cloud.aliyuncs.com/ubuntu jammy-security multiverse
deb-src http://mirrors.cloud.aliyuncs.com/ubuntu jammy-security multiverse

:wq

保存退出

2.更新源：

sudo apt update

sudo apt upgrade

3.安装docker依赖：

apt-get install ca-certificates curl gnupg lsb-release

4.添加Docker官方GPG密钥：

curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -

5.添加Docker软件源：

sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"

6.安装docker：

apt-get install docker-ce docker-ce-cli containerd.io

7.运行docker：

systemctl start docker

8.安装工具：

apt-get -y install apt-transport-https ca-certificates curl software-properties-common

9.重启docker

service docker restart