CentOS8安装docker

　　参考:https://www.cnblogs.com/ding2016/p/11592999.html

　　一，安装环境查看

 　　二，下载docker-ce的repo

curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo

 　　三，安装依赖

yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm

 　　四，安装docker

yum -y install docker-ce

 　　五，启动

systemctl enable docker
systemctl start docker