I have created a PersistentVolume, PersistentVolumeClaim and StorageClass for elasticsearch in a perisistance.yaml file.

The PersistentVolume, StorageClass,PersistentVolumeClaim is created successfully. The bound is also successful.

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: ssd
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-ssd
reclaimPolicy: Retain
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-persistent-volume
spec:
  storageClassName: ssd
  capacity:
    storage: 30G
  accessModes:
    - ReadWriteOnce
  gcePersistentDisk:
    pdName: gke-webtech-instance-2-pvc-f5964ddc-d446-11e9-9d1c-42010a800076
    fsType: ext4
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pv-claim
spec:
  storageClassName: ssd
  volumeName: pv-persistent-volume
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 30G

I have also attached the deployment.yaml for elasticsearch below.

apiVersion: v1
kind: Service
metadata:
  name: elasticsearch
  labels:
    name: elasticsearch
spec:
  type: NodePort
  ports:
    - name: elasticsearch-port1
      port: 9200
      protocol: TCP
      targetPort: 9200
    - name: elasticsearch-port2
      port: 9300
      protocol: TCP
      targetPort: 9300
  selector:
    app: elasticsearch
    tier: elasticsearch
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: elasticsearch-application
  labels:
    app: elasticsearch
spec:
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: elasticsearch
        tier: elasticsearch
    spec:
      hostname: elasticsearch
      containers:
        - image: gcr.io/xxxxxxx/elasticsearch:7.3.1 
          name: elasticsearch
          ports:
            - containerPort: 9200
              name: elasticport1
            - containerPort: 9300
              name: elasticport2
          env:
            - name: discovery.type
              value: single-node
          volumeMounts:
          - mountPath: "/usr/share/elasticsearch/html"
            name: pv-volume
      volumes:
        - name: pv-volume
          persistentVolumeClaim:
             claimName: pv-claim

I have created the deployment.yaml file as well. The Elastic search applications runs successfully without any issues and i am able to hit the elasticsearch URL also. I have run tests and populated the data in elaticsearch and i am able to view the data's also.

Once deleted the cluster in Kubernetes i try to connect with the same disk which has the persistance data. Everything is perfect. But i am not able to get the data which is already stored. My data is lost and i have a disk empty i guess.