8、docker+k8s+kubesphere:nfs安装

server端安装在node151

yum -y install nfs-utils rpcbind


配置文件中的*是允许所有网段，根据自己实际情况写明网段
cat >/etc/exports <<EOF
/data *(insecure,rw,async,no_root_squash) 
EOF


创建目录并修改权限
mkdir /data && chmod 777 /data

systemctl enable nfs-server rpcbind && systemctl start nfs-server rpcbind

client端安装在node152、node153

yum -y install nfs-utils

在node152、node153执行

cat >nfs-storage.yaml <<EOF
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: nfs-provisioner
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
   name: nfs-provisioner-runner
   namespace: default
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: ["watch", "create", "update", "patch"]
   -  apiGroups: [""]
      resources: ["services", "endpoints"]
      verbs: ["get","create","list", "watch","update"]
   -  apiGroups: ["extensions"]
      resources: ["podsecuritypolicies"]
      resourceNames: ["nfs-provisioner"]
      verbs: ["use"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: run-nfs-provisioner
subjects:
  - kind: ServiceAccount
    name: nfs-provisioner
    namespace: default
roleRef:
  kind: ClusterRole
  name: nfs-provisioner-runner
  apiGroup: rbac.authorization.k8s.io
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: nfs-client-provisioner
spec:
  selector:
    matchLabels:
      app: nfs-client-provisioner
  replicas: 1
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: nfs-client-provisioner
    spec:
      serviceAccount: nfs-provisioner
      containers:
        - name: nfs-client-provisioner
          image: quay.io/external_storage/nfs-client-provisioner:latest
          imagePullPolicy: IfNotPresent
          volumeMounts:
            - name: nfs-client
              mountPath: /persistentvolumes
          env:
            - name: PROVISIONER_NAME
              value: fuseim.pri/ifs
            - name: NFS_SERVER
              value: 192.168.5.151   #此处修改为nfs服务器ip
            - name: NFS_PATH
              value: /data                 #这里为nfs共享目录
      volumes:
        - name: nfs-client
          nfs:
            server: 192.168.5.151   #此处修改为nfs服务器ip
            path: /data                    #这里为nfs共享目录
---
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: nfs-storage
provisioner: fuseim.pri/ifs
reclaimPolicy: Retain
EOF

执行结果

[root@node152 ~]# kubectl apply -f nfs-storage.yaml
serviceaccount/nfs-provisioner created
clusterrole.rbac.authorization.k8s.io/nfs-provisioner-runner created
clusterrolebinding.rbac.authorization.k8s.io/run-nfs-provisioner created
deployment.apps/nfs-client-provisioner created
storageclass.storage.k8s.io/nfs-storage created

检查nfs-client pod状态
[root@node152 ~]# kubectl get pods
NAME                                      READY   STATUS              RESTARTS   AGE
nfs-client-provisioner-5cf8c79ff9-jhbmx   0/1     ContainerCreating   0          28s

检查默认存储
[root@node153 ~]# kubectl get sc
NAME          PROVISIONER      RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
nfs-storage   fuseim.pri/ifs   Retain          Immediate           false                  2m40s

设置默认存储

分别在node151、node152、node153上执行
kubectl patch storageclass nfs-storage -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'

查看默认存储
[root@node151 ~]# kubectl get sc
NAME                    PROVISIONER      RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
nfs-storage (default)   fuseim.pri/ifs   Retain          Immediate           false                  8d

[root@node152 ~]# kubectl get sc
NAME                    PROVISIONER      RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
nfs-storage (default)   fuseim.pri/ifs   Retain          Immediate           false                  8d

[root@node153 ~]# kubectl get sc
NAME                    PROVISIONER      RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
nfs-storage (default)   fuseim.pri/ifs   Retain          Immediate           false                  8d
多个(default)