k8s-pvc

创建pvc之前还要把nfs客户端装上

1、创建pvc

cat pv2-nfs.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv2-nfs
  labels:
    app: nfs
spec:
  capacity:
    storage: 2Gi
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    server: 10.151.30.57
    path: /data/k8s

2、使用pvc

cat  nfs-pvc-deploy.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nfs-pvc
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: nfs-pvc
    spec:
      containers:
      - name: nginx
        image: nginx:1.7.9
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: www
          mountPath: /usr/share/nginx/html
      volumes:
      - name: www
        persistentVolumeClaim:
          claimName: pvc2-nfs

---

apiVersion: v1
kind: Service
metadata:
  name: nfs-pvc
  labels:
    app: nfs-pvc
spec:
  type: NodePort
  ports:
  - port: 80
    targetPort: web
  selector:
    app: nfs-pvc

3、创建pv/pvc

kubectl create -f pv2-nfs.yaml

kubectl create -f nfs-pvc-deploy.yaml
deployment.extensions "nfs-pvc" created
service "nfs-pvc" created
kubectl get pods
kubectl get pods
NAME                                             READY     STATUS     RESTARTS   AGE
...
nfs-pvc-57c9945bd9-5r4r6                         1/1       Running    0          19s
nfs-pvc-57c9945bd9-gz6p9                         1/1       Running    0          19s
nfs-pvc-57c9945bd9-x6mvc                         1/1       Running    0          19s
...
kubectl get svc
kubectl get svc
NAME         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
...
nfs-pvc      NodePort    10.98.246.155   <none>        80:30769/TCP   1m
...

4、测试

# echo "<h1>Hello Kubernetes~</h1>" >> /data/k8s/index.html
# ls /data/k8s/
index.html

在使用 PV 和 PVC 的时候一定要注意这些细节，不然一不小心就把数据搞丢了。