1.查看linux内核 uname -r
2.安装软件包
yum install -y yum-utils device-mapper-persistent-data lvm2
3.设置yum源
yum-config-manager --add-repo download.docker.com/linux/cento…
yum-config-manager --add-repo mirrors.aliyun.com/docker-ce/l…
4.查看docker可安装的版本
yum list docker-ce --showduplicates | sort -r
5.安装docker
yum -y install docker-ce-18.03.1.ce
6.设置开机自启
systemctl start docker systemctl enable docker
7.查看docker版本，安装成功
