安装所需软件包
sudo yum install -y yum-utils \device-mapper-persistent-data \lvm2
设定仓库
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
安装docker
sudo yum install docker-ce
运行docker
systemctl start docker
原文：https://www.cnblogs.com/sunang/p/12324939.html