MongoDB Statefulset

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongodb
spec:
  selector:
    matchLabels:
      app: mongodb
  replicas: 2
  template:
    metadata:
      labels:
        app: mongodb
    spec:
      containers:
        - name: mongodb-container
          image: mongo
          ports:
            - containerPort: 27017
          env:
            - name: MONGO_INITDB_ROOT_USERNAME
              value: "root"
            - name: MONGO_INITDB_ROOT_PASSWORD
              value: "password"
            - name: MONGO_INITDB_DATABASE
              value: "stocks_db"
          volumeMounts:
            - name: mongo-persistent-storage
              mountPath: /data/db
          resources:
            requests:
              memory: "256Mi"
              cpu: "250m"
            limits:
              memory: "512Mi"
              cpu: "500m"
  volumeClaimTemplates:
    - metadata:
        name: mongo-persistent-storage
      spec:
        accessModes: [ "ReadWriteOnce" ]
        resources:
          requests:
            storage: 1Gi
  serviceName: "mongodb"