1、安装依赖包

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

2、添加docker软件包源

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

yum makecache fast

yum repolist all

yum repolist all | grep enabled

3、查看所有仓库中所有docker版本，并选择特定版本安装

yum list docker-ce --showduplicates | sort -r

4、安装Docker-ce

yum install docker-ce-20.10.9

# yum install docker-ce-18.03.1.ce

5、启动docker并设置开机自启

systemctl start docker
systemctl enable docker