apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongo
spec:
  selector:
    matchLabels:
      app: mongo
  serviceName: "mongo"
  replicas: 3
  template:
    metadata:
      labels:
        app: mongo
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: mongo
        image: mongo
        command: 
        - mongod 
        - "--bind_ip_all"
        - "--replSet"
        - rs0
        ports:
        - containerPort: 27017
        volumeMounts:
        - name: mongo-volume
          mountPath: /data/db
  volumeClaimTemplates:
  - metadata:
      name: mongo-volume
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 1Gi