# (1). 所有节点
yum install -y nfs-utils

#(2). 主节点
#nfs主节点
echo "/nfs/data/ *(insecure,rw,sync,no_root_squash)" > /etc/exports

mkdir -p /nfs/data
systemctl enable rpcbind --now
systemctl enable nfs-server --now
#配置生效
exportfs -r

# (3). 从节点
showmount -e 192.168.68.144
#执行以下命令挂载 nfs 服务器上的共享目录到本机路径 /root/nfsmount
mkdir -p /nfs/data
mount -t nfs 192.168.68.144:/nfs/data /nfs/data

# (4). 在主节点 写入一个测试文件
echo "hello nfs server" > /nfs/data/test.txt
# 去node节点查看/nfs/data/下是不是有一个test.txt

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx-pv-demo
  name: nginx-pv-demo
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx-pv-demo
  template:
    metadata:
      labels:
        app: nginx-pv-demo
    spec:
      containers:
      - image: nginx
        name: nginx
        volumeMounts:
        - name: html
          mountPath: /usr/share/nginx/html
      volumes:
        - name: html
          nfs:
            server: 192.168.68.144
            path: /nfs/data/nginx-pv

[root@k8smaster nginx-pv]# echo "hello NFS " >index.html
[root@k8smaster nginx-pv]# kubectl get pods -owide
NAME                            READY   STATUS    RESTARTS   AGE     IP               NODE       NOMINATED NODE   READINESS GATES
hello-server-6cbb679d85-pxwld   1/1     Running   1          3h56m   11.168.249.22    k8snode1   <none>           <none>
hello-server-6cbb679d85-rslbx   1/1     Running   1          3h56m   11.168.185.223   k8snode2   <none>           <none>
my-dep-01-54d8bdbf78-4xmbj      1/1     Running   1          4h54m   11.168.185.220   k8snode2   <none>           <none>
my-dep-01-54d8bdbf78-h2w7x      1/1     Running   1          4h54m   11.168.185.222   k8snode2   <none>           <none>
my-dep-01-54d8bdbf78-xfrm2      1/1     Running   1          4h54m   11.168.249.25    k8snode1   <none>           <none>
mynginx                         1/1     Running   1          136m    11.168.185.221   k8snode2   <none>           <none>
nginx-demo-7d56b74b84-mdcks     1/1     Running   1          3h56m   11.168.185.224   k8snode2   <none>           <none>
nginx-demo-7d56b74b84-rpzvn     1/1     Running   1          3h56m   11.168.249.26    k8snode1   <none>           <none>
nginx-pv-demo-bc8c96c6b-6jwtx   1/1     Running   0          97s     11.168.185.227   k8snode2   <none>           <none>
nginx-pv-demo-bc8c96c6b-jb6d8   1/1     Running   0          97s     11.168.249.28    k8snode1   <none>           <none>
[root@k8smaster nginx-pv]# curl 11.168.185.227
hello NFS 
[root@k8smaster nginx-pv]#