安装Docker-CE修改repo源修改为国内阿里源以提高安装速度sed-e's|^mirrorlist=|#mirrorlist=|g'\-e's|^#baseurl=http://dl.rockylinux.org/$contentdir|baseurl=https://mirrors.aliyun.com/rockylinux|g'\-i.bak\/etc/yum.repos.d/rocky*.repo