我们这里把NFS服务器搭建再K8s的一个master节点上
1、在NFS服务器上安装服务端软件
# yum -y install nfs-utils
编辑/etc/exports
[root@centos7 /]# vi /etc/exports
/backup 192.168.108.0/24(rw,sync,no_root_squash)
若是想让所有主机都可以挂载，可以配置为 /backup *(rw,sync,no_root_squash)
[root@k8s-master03 ~]# mkdir /backup
[root@k8s-master03 ~]# chmod -R 777 /backup/
启动服务并设置为开机自动启动
[root@k8s-master03 ~]# systemctl enable rpcbind.service
[root@k8s-master03 ~]# systemctl enable nfs-server.service
Created symlink from /etc/systemd/system/multi-user.target.wants/nfs-server.service to /usr/lib/systemd/system/nfs-server.service.
[root@k8s-master03 ~]# systemctl start rpcbind.service
[root@k8s-master03 ~]# systemctl start nfs-server.service
加载配置并确认最终配置情况
[root@k8s-master03 ~]# exportfs -r
[root@k8s-master03 ~]# exportfs
/backup 192.168.108.0/24
[root@k8s-master03 ~]#
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2、在NFS客户端上安装软件
2.1 比如在K8s所有work node上安装
# yum -y install nfs-utils
2.2 检查挂载目录
[root@k8s-master03 Chapter05]# showmount -e 192.168.108.88
Export list for 192.168.108.88:
/backup3 192.168.108.0/16
/backup2 192.168.108.0/16
/backup 192.168.108.0/16
2.3 新建挂载点并挂载：
# mkdir /nfs
挂载共享目录:
# mount -t nfs 192.168.108.88:/backup /nfs
开启自动挂载:
[root@k8s-node1 ~]# cat /etc/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.
touch /var/lock/subsys/local
mount -t nfs 192.168.108.88:/backup /nfs
[root@k8s-node1 ~]#
3、测试
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