pv静态供给演示（nfs）

部署Pv

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[root@pool1 k8s_yaml]# vi deploy-static-PV.yaml 
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: my-pvc
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 5Gi
[root@pool1 k8s_yaml]# kubectl apply -f deploy-static-PV.yaml

部署Pvc

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[root@pool1 k8s_yaml]# vi deploy-static-PVC.yaml 
apiVersion: v1
kind: PersistentVolume
metadata:
  name: my-pv
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: 172.16.1.20
    path: /data/k8s_data
[root@pool1 k8s_yaml]# kubectl apply -f deploy-static-PVC.yaml

部署Nginx Pod

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[root@pool1 k8s_yaml]# vi deploy-nginx2.yaml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: pvc-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx2
  template:
    metadata:
      labels:
        app: nginx2
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80
        volumeMounts:
        - name: nfs-volume
          mountPath: /usr/share/nginx/html
      volumes:
      - name: nfs-volume
        persistentVolumeClaim:
          claimName: my-pvc
[root@pool1 k8s_yaml]# kubectl apply -f deploy-nginx2.yaml

查看Pod状态

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[root@pool1 k8s_yaml]# kubectl get pod
NAME                              READY   STATUS    RESTARTS   AGE
pvc-deployment-745487d99d-8mmvm   1/1     Running   0          75s
pvc-deployment-745487d99d-jzqj5   1/1     Running   0          75s
pvc-deployment-745487d99d-n8bcc   1/1     Running   0          76s

查看PV和PVC状态

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[root@pool1 k8s_yaml]# kubectl get pvc
NAME     STATUS   VOLUME   CAPACITY   ACCESS MODES   STORAGECLASS   AGE
my-pvc   Bound    my-pv    5Gi        RWX                           7m53s
[root@pool1 k8s_yaml]# kubectl get pv
NAME    CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM            STORAGECLASS   REASON   AGE
my-pv   5Gi        RWX            Retain           Bound    default/my-pvc                           6m57s
# 都处于Bound状态 漂亮！

创建svc

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[root@pool1 k8s_yaml]# kubectl expose deployment pvc-deployment --port=80 --target-port=80
service/pvc-deployment exposed

[root@pool1 k8s_yaml]# kubectl get svc
NAME               TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE
kubernetes         ClusterIP   10.96.0.1        <none>        443/TCP   28h
pvc-deployment     ClusterIP   10.103.239.234   <none>        80/TCP    5s

验证访问

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[root@pool1 k8s_yaml]# echo "my is nfs volume!" >> /data/k8s_data/status.html

[root@pool1 k8s_yaml]# curl 10.103.239.234/status.html
test