kubernetes&&NFS類型的PV創建

安裝NFS服務器

yum  -y  install  nfs-common nfs-utils rpcbind
mkdir  /nfsdata
chmod  666  /nfsdata
chown  nfsnobody  /nfsdata
cat  /etc/exports
    /nfsdata  *(rw,no_root_squash,no_all_squash,sync)
    systemctl  start  rpcbind
    systemctl  start  nfs

所有節點服務器都安裝nfs

yum  -y  install  nfs-common nfs-utils rpcbind

在節點服務器上檢測能否正常使用NFS服務器

[root@k8s-master01 /]# mkdir test
[root@k8s-master01 /]# showmount -e 192.168.0.220
Export list for 192.168.0.220:
/nfsdata *
[root@k8s-master01 /]# mount  -t  nfs  192.168.0.220:/nfsdata  /test
[root@k8s-master01 /]# cd /test/
[root@k8s-master01 test]# mkdir 0-200
[root@k8s-master01 /]# umount /test/

部署PV

[root@k8s-master01 pv]# cat pv.yaml 
apiVersion: v1
kind: PersistentVolume
metadata:
    name: nfs-pv
spec:
    capacity:
        storage: 1Gi
    accessModes:
      - ReadWriteOnce
    persistentVolumeReclaimPolicy: Retain
    storageClassName: nfs
    nfs:
        path: /nfsdata
        server: 192.168.0.220

[root@k8s-master01 pv]# kubectl create -f pv.yaml 
persistentvolume/nfs-pv created

[root@k8s-master01 pv]# kubectl get persistentvolume
NAME     CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM   STORAGECLASS   REASON   AGE
nfs-pv   1Gi        RWO            Retain           Available           nfs                     26s

創建服務並使用PVC

[root@k8s-master01 pv]# cat pvc.yaml 
apiVersion: v1
kind: Service
metadata:
    name: nginx
    labels: 
        app: nginx
spec:
    ports:
      - port: 80
        name: web
    clusterIP: None
    selector:
        app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
    name: web
spec:
    selector:
        matchLabels:
            app: nginx
    serviceName: "nginx"
    replicas: 3
    template:
        metadata:
            labels:
                app: nginx
        spec:
            containers:
              - name: nginx
                image: wangyanglinux/myapp:v1
                ports:
                  - containerPort: 80
                    name: web
                volumeMounts:
                  - name: www
                    mountPath: /usr/share/nginx/html
    volumeClaimTemplates:
      - metadata:
            name: www
        spec:
            accessModes: [ "ReadWriteOnce" ]
            storageClassName: "nfs"
            resources:
                requests:
                    storage: 0.5Gi