安装epel
rpm -ivh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
yum -y install yum -priorities
安装docker
yum -y install docker-io
service docker start
chkconfig docker on
原文：https://www.cnblogs.com/wangyinhuo/p/9496339.html