Postgresql'de erişim hatası

Container | Sanallaştırma Kubernetes
1 
apiVersion: v1
kind: ConfigMap
metadata:
  name: postgresql-config
data:
  POSTGRES_USER: admin
  POSTGRES_PASSWORD: admin
---
apiVersion: v1
kind: Service
metadata:
  name: postgresql
  labels:
    app: postgresql
spec:
  ports:
  - port: 5432
    name: postgresql
  clusterIP: None
  selector:
    app: postgresql
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: postgresql-pv
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/mnt/data"
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgresql
spec:
  serviceName: "postgresql"
  replicas: 1
  selector:
    matchLabels:
      app: postgresql
  template:
    metadata:
      labels:
        app: postgresql
    spec:
      tolerations:
      - key: "node-role.kubernetes.io/control-plane"
        operator: "Exists"
        effect: "NoSchedule"
      containers:
      - name: postgresql
        image: postgres:15
        ports:
        - containerPort: 5432
          name: postgresql
        envFrom:
        - configMapRef:
            name: postgresql-config
        volumeMounts:
        - name: postgresql-data
          mountPath: /var/lib/postgresql/data
          subPath: postgresql
  volumeClaimTemplates:
  - metadata:
      name: postgresql-data
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi

postgresql yaml yapılandırması ile

chmod: changing permissions of ‘/var/lib/postgresql/data’: Permission denied
find: ‘/var/lib/postgresql/data’: Permission denied
chown: changing ownership of ‘/var/lib/postgresql/data’: Permission denied

Hatası almaktayim pod içinde yetki vermem gerekir yoksa başka birşeyden mi bu hata kaynaklanmakta