1,卸载docker历史信息
yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-selinux \ docker-engine-selinux \ docker-engine
2,安装系统工具
yum install -y yum-utils device-mapper-persistent-data lvm2
3,添加软件源信息
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
4,更新 yum 缓存
yum makecache fast
5,安装 Docker-ce
yum -y install docker-ce
6,启动 Docker 后台服务
systemctl start docker