apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongo
  namespace: tailchat
spec:
  selector:
    matchLabels:
      app: mongo
  serviceName: mongo
  replicas: 1
  template:
    metadata:
      labels:
        app: mongo
    spec:
      containers:
        - name: mongo
          image: mongo:4
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: mongo-persistent-storage
              mountPath: /data/tailchat/db
      volumes:
        - name: mongo-persistent-storage
          persistentVolumeClaim:
            claimName: mongo-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: mongo-service
  namespace: tailchat
spec:
  type: ClusterIP
  selector:
    app: mongo
  ports:
  - protocol: TCP
    port: 27017
    targetPort: 27017