PersistentVolumeClaim (PVC)

Persistent storage for pods — data survives pod restarts (StatefulSet + PVC pattern)

📋Configuration Files

pvc.yml

yaml

1apiVersion: v1
2kind: PersistentVolumeClaim
3metadata:
4  name: data-pvc
5spec:
6  accessModes:
7    - ReadWriteOnce
8  resources:
9    requests:
10      storage: 1Gi
11  storageClassName: standard

statefulset.yml

StatefulSet mounting the PVC at /data

yaml

1apiVersion: apps/v1
2kind: StatefulSet
3metadata:
4  name: app-with-storage
5spec:
6  serviceName: app-svc
7  replicas: 1
8  selector:
9    matchLabels:
10      app: app-with-storage
11  template:
12    metadata:
13      labels:
14        app: app-with-storage
15    spec:
16      containers:
17        - name: app
18          image: nginx:alpine
19          ports:
20            - containerPort: 80
21          volumeMounts:
22            - name: data
23              mountPath: /data
24      volumes:
25        - name: data
26          persistentVolumeClaim:
27            claimName: data-pvc

📄

Step 01

Apply PVC + StatefulSet

(01)Create PVC then StatefulSet

Linux

1kubectl apply -f pvc.yml
2kubectl get pvc
3kubectl apply -f statefulset.yml
4kubectl get pods,pvc
5kubectl exec app-with-storage-0 -- ls /data