1.安装nfs，在每个节点上安装

yum install -y nfs-utils

2.创建共享目录(主节点上操作) 

        mkdir -p /opt/nfs/k8s

3.编写NFS的共享配置

        /opt/nfs/k8s *(rw,no_root_squash)

        #*代表对所有IP都开放此目录，rw是读写 

4.启动nfs

systemctl enable nfs-server #开机启动

systemctl restart nfs-server #启动

5.测试nfs

        showmount -e  主节点ip

        查看NFS共享目录，ip为机器的内部IP 

6.创建先关yaml文件

注：在 k8s 1.20 之后，出于对性能和统一 apiserver 调用方式的初衷，k8s 移除对 SelfLink 的支持，而默认上面指定的 provisioner 版本需要 SelfLink 功能，因此 PVC 无法进行自动制备。所以需要找不需要SelfLink的镜像。

class.yaml

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:name: managed-nfs-storage
provisioner: fuseim.pri/ifs # or choose another name, must match deployment's env PROVISIONER_NAME'
parameters:archiveOnDelete: "true"

 deploy.yaml

apiVersion: v1
kind: ServiceAccount
metadata:name: nfs-client-provisioner
---
kind: Deployment
apiVersion: apps/v1
metadata:name: nfs-client-provisioner
spec:replicas: 1strategy:type: Recreateselector:matchLabels:app: nfs-client-provisionertemplate:metadata:labels:app: nfs-client-provisionerspec:serviceAccountName: nfs-client-provisionercontainers:- name: nfs-client-provisionerimage: registry.cn-beijing.aliyuncs.com/pylixm/nfs-subdir-external-provisioner:v4.0.0volumeMounts:- name: nfs-client-rootmountPath: /persistentvolumesenv:- name: PROVISIONER_NAMEvalue: fuseim.pri/ifs- name: NFS_SERVERvalue: 192.168.2.74 #主节点ip- name: NFS_PATHvalue: /opt/k8s/volumes:- name: nfs-client-rootnfs:server: 192.168.2.74  #主节点ippath: /opt/k8s/

 rbac.yaml

kind: ServiceAccount
apiVersion: v1
metadata:name: nfs-client-provisioner
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:name: nfs-client-provisioner-runner
rules:- apiGroups: [""]resources: ["persistentvolumes"]verbs: ["get", "list", "watch", "create", "delete"]- apiGroups: [""]resources: ["persistentvolumeclaims"]verbs: ["get", "list", "watch", "update"]- apiGroups: ["storage.k8s.io"]resources: ["storageclasses"]verbs: ["get", "list", "watch"]- apiGroups: [""]resources: ["events"]verbs: ["create", "update", "patch"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:name: run-nfs-client-provisioner
subjects:- kind: ServiceAccountname: nfs-client-provisionernamespace: default
roleRef:kind: ClusterRolename: nfs-client-provisioner-runnerapiGroup: rbac.authorization.k8s.io
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:name: leader-locking-nfs-client-provisioner
rules:- apiGroups: [""]resources: ["endpoints"]verbs: ["get", "list", "watch", "create", "update", "patch"]
---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:name: leader-locking-nfs-client-provisioner
subjects:- kind: ServiceAccountname: nfs-client-provisioner# replace with namespace where provisioner is deployednamespace: default
roleRef:kind: Rolename: leader-locking-nfs-client-provisionerapiGroup: rbac.authorization.k8s.io

7.查看对应的pod 

kubectl get pod

8.创建pvc.yaml 测试

apiVersion: v1
kind: PersistentVolumeClaim
metadata:name: demo-pvc
spec:accessModes:- ReadWriteOnceresources:requests:storage: 1GistorageClassName: managed-nfs-storage

 9.kubectl get pvc