apiVersion: v1
kind: Service
metadata:
  name: postgresql
spec:
  type: ClusterIP  # Internal access only
  selector:
    app: postgresql
  ports:
    - protocol: TCP
      port: 5432
      targetPort: 5432

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgresql
spec:
  serviceName: postgresql
  replicas: 1  # Single-node PostgreSQL
  selector:
    matchLabels:
      app: postgresql
  template:
    metadata:
      labels:
        app: postgresql
    spec:
      containers:
        - name: postgres
          image: postgres:latest  # Standard PostgreSQL image
          args:
            - -c
            - max_connections=2000
          env:
            - name: POSTGRES_DB
              value: "payphone"
            - name: POSTGRES_USER
              value: "payphone"
            - name: POSTGRES_PASSWORD
              value: "payphone"
          ports:
            - containerPort: 5432
          volumeMounts:
            - name: postgres-storage
              mountPath: /var/lib/postgresql/data
              subPath: postgres
  volumeClaimTemplates:
    - metadata:
        name: postgres-storage
      spec:
        accessModes: [ "ReadWriteOnce" ]
        storageClassName: openebs-hostpath  # Your storage class
        resources:
          requests:
            storage: 20Gi  # Adjust storage as needed