搭建nfs server
在/etc/exports中添加一下内容：
代码语言：javascript复制/root/share 10.0.0.0/8(rw,sync,no_wdelay,no_root_squash,insecure,fsid=0)参数具体解释如下：
- 10.0.0.0/8：可以访问的主机ip段
- rw：可读写
- sync：将数据同步写入内存和磁盘
- no_wdelay：若执行写操作，立即执行，须和sync一起使用
- no_root_squash：如果进入该目录的用户时root，就具备root权限
- insecure：允许客户端从大于1024的tcp/ip端口连接nfs server
- fsid=0：nfs文件系统的uuid，为0时只能共享一个目录
重启nfs相关服务：
代码语言：javascript复制$ systemctl restart rpcbind.service
$ systemctl restart nfs.service确认设置生效：
代码语言：javascript复制$ exportfs
/root/share 10.0.0.0/8
$ showmount -e
Export list for ssli-ocp1-inf.fyre.ibm.com:
/root/share 10.0.0.0/8创建相应的pv和pvc
pv.yaml如下：
代码语言：javascript复制apiVersion: v1
kind: PersistentVolume
metadata:
name: share
spec:
capacity:
storage: 1Gi
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Recycle
volumeMode: Filesystem
nfs:
server: 10.16.60.168
path: "/root/share"pvc.yaml如下：
代码语言：javascript复制apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: share
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 1Gi创建pv和pvc：
代码语言：javascript复制$ oc apply -f pv.yaml
persistentvolume/share created
$ oc apply -f pvc.yaml
persistentvolumeclaim/share created
$ oc get pv share
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
share 1Gi RWX Recycle Bound default/share 9s
$ oc get pvc share
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
share Bound share 1Gi RWX 11s创建pod使用该pvc
pod.yaml如下：
代码语言：javascript复制apiVersion: v1
kind: Pod
metadata:
name: busybox
spec:
containers:
- name: busybox
image: busybox
command:
- sleep
- "3600"
volumeMounts:
- name: share
mountPath: "/share"
volumes:
- name: share
persistentVolumeClaim:
claimName: share创建pod并进入pvc的share目录创建test文件：
代码语言：javascript复制$ oc apply -f pod.yaml
pod/busybox created
$ oc exec -it busybox /bin/sh
/ # cd share/
/share # touch test
/share # exit删除pod后，再次使用该pvc，可以看到test文件依然存在：
代码语言：javascript复制$ oc delete -f pod.yaml
pod "busybox" deleted
$ oc apply -f pod.yaml
pod/busybox created
$ oc exec -it busybox /bin/sh
/ # ls /share/
test
/ # exitLEo at 12:12
