How to install docker

Time:2022-6-10

1. connect to the remote server

Use the following command to connect to the remote server

SSH [email protected] server ip/ domain name

2. install docker

(1) Install required packages

yum install -y yum-utils device-mapper-persistent-data lvm2

(2) Set the yum domestic image source (select one)

//Official source address (relatively slow)
$ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
//Alicloud
$ sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
//Tsinghua University source 
$ sudo yum-config-manager --add-repo https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/docker-ce.repo

(3) Install docker -ce using Yum instructions

yum install docker-ce

Note that the command Yum install docker cannot be used here because it will make the system think that we want to install podman docker

If you have installed podman docker by mistake, you can remove it and reinstall the article

The command to delete podman docker is dnf remove podman

(4) Start docker and add boot auto start

//Start
 systemctl start docker
//Join auto start
 systemctl enable  docker
//Docker version
 docker version

3. uninstall docker

(1) Remove installation package

yum remove docker-ce

(2) Delete images, containers, configuration files, etc.:

rm -rf /var/lib/docker

  

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