1、准备3台虚拟机192.168.253.100192.168.253.101192.168.253.102由于k8s在内核3.10下有bug,一定要更新到4.4以上。升级CentOS7内核至5.4（1）下载内核源：rpm -Uvh http://www.elrepo.org/elrepo-rele