apiVersion: v1
kind: Service
metadata:
  name: pg
  labels:
    app: pg
spec:
  ports:
    - port: 5432
      name: pg
  clusterIP: None
  selector:
    app: pg
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: pg
spec:
  selector:
    matchLabels:
      app: pg
  serviceName: "pg"
  replicas: 1
  minReadySeconds: 10 # by default is 0
  template:
    metadata:
      labels:
        app: pg
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: pg
          securityContext:
            runAsUser: 3001
            runAsGroup: 3001
          image: postgres
          ports:
            - containerPort: 5432
              name: postgres
          volumeMounts:
            - name: pg-data
              mountPath: /data/
          env:
            - name: POSTGRES_PASSWORD
              value: 'abc@123'
            - name: POSTGRES_USER
              value: "postgres"
            - name: POSTGRES_DB
              value: "coal"
            - name: PGDATA
              value: "/data/"



  volumeClaimTemplates:
    - metadata:
        name: pg-data
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: nfs
        resources:
          requests:
            storage: 10Gi