Error: PostgreSQL Kubernetes data directory "/var/lib/postgresql/data" has wrong ownership windows - postgresql

Question

I am new to kubernetes and stuff. I was going through the tutorials, I encountered a error while using the pstgres database and persistent volume claim. I am pretty sure that all the permissions are being given to the user but still the error suggest that the folder has wrong ownership.
Here are my configuration files
This is the persistent volume claim file
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: database-persistent-volume-claim
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 2Gi
Here is my postgres deployment file
apiVersion: apps/v1
kind: Deployment
metadata:
name: postgres-deployment
spec:
replicas: 1
selector:
matchLabels:
component: postgres
template:
metadata:
labels:
component: postgres
spec:
volumes:
- name: postgres-storage
persistentVolumeClaim:
claimName: database-persistent-volume-claim
containers:
- name: postgres
image: postgres
ports:
- containerPort: 5432
volumeMounts:
- name: postgres-storage
mountPath: /var/lib/postgresql/data
subPath: postgres
env:
- name: POSTGRES_HOST_AUTH_METHOD
value: "trust"
- name: PGPASSWORD
valueFrom:
secretKeyRef:
name: pgpassword
key: PGPASSWORD
Here is the error message
2020-04-12 01:57:11.986 UTC [82] FATAL: data directory "/var/lib/postgresql/data" has wrong ownership
2020-04-12 01:57:11.986 UTC [82] HINT: The server must be started by the user that owns the data directory.
child process exited with exit code 1
initdb: removing contents of data directory "/var/lib/postgresql/data"
Any help is appreciated?

Answer 1

This is working for me check subpath in volume mount
apiVersion: apps/v1
kind: StatefulSet
metadata:
spec:
podManagementPolicy: OrderedReady
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
app: postgres
serviceName: postgres
template:
metadata:
creationTimestamp: null
labels:
app: postgres
spec:
containers:
- env:
- name: POSTGRES_USER
value: root
- name: POSTGRES_PASSWORD
value: <Password>
- name: POSTGRES_DB
value: <DB name>
- name: PGDATA
value: /var/lib/postgresql/data/pgdata
image: postgres:9.5
imagePullPolicy: IfNotPresent
name: postgres
ports:
- containerPort: 5432
protocol: TCP
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /var/lib/postgresql/data
name: postgres-data
subPath: pgdata
dnsPolicy: ClusterFirst
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}
terminationGracePeriodSeconds: 60
updateStrategy:
rollingUpdate:
partition: 0
type: RollingUpdate
volumeClaimTemplates:
- metadata:
creationTimestamp: null
name: postgres-data
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 3Gi
volumeMode: Filesystem
status:
phase: Pending