centos8安装docker
(1)查看当前的内核版本
uname -r
(2)更新yum包(可选)
yum -y update:升级所有包同时也升级软件和系统内核
yum -y upgrade:只升级所有包,不升级软件和系统内核
(3)卸载旧版本
yum remove docker docker-common docker-selinux docker-engine
(4)安装依赖包
yum install -y yum-utils device-mapper-persistent-data lvm2
(5)设置源
yum-config-manager --add-repo http://download.docker.com/linux/centos/docker-ce.repo(中央仓库)
或
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo(阿里仓库)
(6)查看可选版本
yum list docker-ce --showduplicates | sort -r
(7)安装
yum install docker-ce-20.10.6-3.el8
(8)查看版本,设置开机启动,查看状态等
docker version
systemctl start docker
systemctl enable docker
systemctl daemon-reload
systemctl status docker