apiVersion: apps/v1
kind: ReplicaSet
metadata:
  labels:
    app: mongo
  name: mongo
  namespace: nodejs
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mongo
  template:
    metadata:
      labels:
        app: mongo
    spec:
      nodeSelector:
        mongo-node: "true"  # Runs only on nodes with this label
      containers:
      - image: mongodb/mongodb-community-server
        name: mongodb
        imagePullPolicy: Always 
        env:
        - name: MONGODB_INITDB_ROOT_USERNAME
          value: admin
        - name: MONGODB_INITDB_ROOT_PASSWORD
          value: Mongodb01
        volumeMounts:
        - name: mongo-data-dir
          mountPath: /data/db
        resources:
          limits:
            cpu: 500m
          requests:
            cpu: 200m
      volumes:
      - name: mongo-data-dir
        persistentVolumeClaim:
          claimName: nodejs-pvc
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: mongo
  name: mongo
  namespace: nodejs
spec:
  ports:
  - port: 27017
    protocol: TCP
    targetPort: 27017
  selector:
    app: mongo
  type: LoadBalancer
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: nodejs-pv
spec:
  storageClassName: ""
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  mountOptions:
    - hard
    - nfsvers=4.1
  nfs:
    server: 192.168.2.111
    path: /mnt/nfs_share/prod/mongodb
    readOnly: false
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nodejs-pvc
  namespace: nodejs
spec:
  storageClassName: ""
  volumeName: nodejs-pv
  accessModes:
    - ReadWriteOnce
  volumeMode: Filesystem
  resources:
    requests:
      storage: 1Gi