配置nfs共享目录：
yum install nfs-common  nfs-utils -y

# cat /etc/exports
/data/sharedir   10.0.0.0/8(rw,sync,no_root_squash)

systemctl restart rpcbind 
systemctl restart nfs
 
 第一种方式：通过做pv，pvc进行挂载

cat  nfs-pv-pvc.yaml
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: nfs-malico        # pv 名字
  namespace: sharenfs
  labels:
    app: nfs-malico       # 定义 labels ap: nfs-malico
spec:
  capacity:
    storage: 20Gi      # 定义容量
  accessModes:
    - ReadWriteMany    # 访问模式RWX 
  persistentVolumeReclaimPolicy: Retain # 回收策略  保留数据，需要管理员手工清理数据
  storageClassName: nfs                 # 定义 storageClassName 只有相同名字的才能绑定在一起
  nfs:
    path: /data/sharedir/ngpvc
    server: 10.4.11.11

---    

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: nfs-malico      # pvc 名字
  namespace: sharenfs
spec:
  storageClassName: nfs  # Name of Storage Class Name, use same class name defined in pv
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 20Gi     # amout of Storage request
  selector:
    matchLabels:
      app: nfs-malico      # 指定 pv 的标签 nfs-malico
      
      

cat  nginx-pvc.yaml      
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-pvc
  namespace: sharenfs
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx-pvc
  template:
    metadata:
      labels:
        app: nginx-pvc
    spec:
      containers:
      - name: nginx
        image: nginx:1.20
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: nfs-malico
          mountPath: /usr/share/nginx/html
      volumes:
      - name: nfs-malico
        persistentVolumeClaim:
          claimName: nfs-malico
          

验证：

共享主机：echo   AAAA  > /data/sharedir/test.log
nginx-pvc容器：ls -l /usr/share/nginx/html && cat /usr/share/nginx/html/test.log

第二种方式：直接挂载nfs，不做pv，pvc

cat nginx-nfs.yaml  

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-nfs
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx-nfs
  template:
    metadata:
      labels:
        app: nginx-nfs
    spec:
      containers:
      - name: nginx
        image: nginx:1.20
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: nfs-malico
          mountPath: /usr/share/nginx/html
      volumes:
      - name: nfs-malico
        nfs:
          server: 10.4.11.11                #nfs服务主机IP或主机名
          path: /data/sharedir/ngnfs        #挂载的目录
          readOnly: false