注意，这个文件必须以UTF-8无BOM格式编码。
一、nfs服务器端安装
在kube-master.jigsaw上，执行
sudo yum install nfs-utils
创建nfs目录
sudo mkdir /home/nfs
sudo chmod -R 755 /home/nfs
sudo chown nfsnobody:nfsnobody /home/nfs
启动服务
systemctl enable rpcbind
systemctl enable nfs-server
systemctl enable nfs-lock
systemctl enable nfs-idmap
systemctl start rpcbind
systemctl start nfs-server
systemctl start nfs-lock
systemctl start nfs-idmap
修改/etc/exports文件，设置nfs共享目录
/home/nfs 172.16.0.1/16(rw,sync,no_subtree_check) 192.168.1.1/16(rw,sync,no_subtree_check) *.jigsaw(rw,sync,no_subtree_check)
重启服务让目录生效
systemctl restart nfs-server
二、客户端安装
在所有kube客户端上执行
sudo yum install nfs-utils
执行showmount命令验证是否可以mount
[jigsaw@kube23 ~]$ showmount -e kube-master.jigsaw
Export list for kube-master.jigsaw:
/home/nfs *.jigsaw,192.168.1.1/16,172.16.0.1/16