I'm trying to run a stateful Mongo inside Kubernetes and it works with these configurations outside of Istio.

  mongodb: {
    uri: "mongodb://mongo-0.mongo,mongo-1.mongo,mongo-2.mongo",
    dbName: "app"
  }

But when I run the node application inside Istio, it loses the ability to connect to the mongo. Is there something I'm missing or is it so that I can't use stateful-sets with Istio yet?

stateful mongo config below.

apiVersion: v1
kind: Service
metadata:
  labels:
    service: mongo
  name: mongo
spec:
  ports:
  - name: tcp
    port: 27017
    targetPort: 27017
  clusterIP: None
  selector:
    service: mongo
    role: mongo
***********
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: mongo
spec:
  serviceName: "mongo"
  replicas: 3
  template:
    metadata:
      labels:
        role: mongo
        environment: test
        service: mongo
    spec:
      terminationGracePeriodSeconds: 10
      containers:
        - name: mongo
          image: mongo:3.4.6
          resources:
            requests:
              cpu: "10m"
          command:
            - mongod
            - "--replSet"
            - rs0
            - "--smallfiles"
            - "--noprealloc"
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: mongo-persistent-storage
              mountPath: /data/db
        - name: mongo-sidecar
          image: cvallance/mongo-k8s-sidecar
          resources:
            requests:
              cpu: "10m"
          env:
            - name: MONGO_SIDECAR_POD_LABELS
              value: "role=mongo,environment=test"

Error that I'm receiving is

[2017-07-25 12:01:11] ERROR Mongoose MonboDB connection error: {
  "message": "write EPIPE",
  "name": "MongoError",
  "stack": "Error: write EPIPE\n    at exports._errnoException (util.js:1024:11)\n    at WriteWrap.afterWrite [as oncomplete] (net.js:851:14)"
}
[2017-07-25 12:01:11] ERROR ... retrying createConnection in 5 seconds... 
[2017-07-25 12:01:16] ERROR Mongoose MonboDB connection error: {
  "message": "read ECONNRESET",
  "name": "MongoError",
  "stack": "Error: read ECONNRESET\n    at exports._errnoException (util.js:1024:11)\n    at TCP.onread (net.js:610:25)"
}