设置安装源

yum install yum-utils
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

从https://download.docker.com/linux/centos/7/x86_64/stable/Packages/查看最新版本的containerd.io，然后安装

dnf install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.10-3.2.el7.x86_64.rpm

安装docker-ce

yum install docker-ce docker-ce-cli