错误：软件包：3:docker-ce-18.09.4-3.el7.x86_64 (docker-ce-stable) 需要：container-selinux >= 2.9

命令：yum -y install http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.68-1.el7.noarch.rpm