I'm attempting to setup a simple routing example with Istio 1.3.0-rc.0 based upon the Book Info example. I am attempting this in EKS with Kubernetes version 1.13. Here is my configuration.

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: myapp-gateway
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
    - port:
        number: 80
        name: http
        protocol: HTTP
      hosts:
        - "*"

---
apiVersion: v1
kind: Service
metadata:
  name: myapp-service
  labels:
    app: myapp
spec:
  ports:
    - port: 3001
      name: http
  selector:
    app: myapp

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp-v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: myapp
      version: v1
  template:
    metadata:
      labels:
        app: myapp
        version: v1
    spec:
      containers:
        - name: myapp
          image: fake-myapp:v1
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 3001

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp-v2
spec:
  replicas: 1
  selector:
    matchLabels:
      app: myapp
      version: v2
  template:
    metadata:
      labels:
        app: myapp
        version: v2
    spec:
      containers:
        - name: myapp
          image: fake-myapp:v2
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 3001
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: myapp-destinationrule
spec:
  host: myapp-service
  subsets:
    - name: v1
      labels:
        version: v1
    - name: v2
      labels:
        version: v2

---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: app-virtualservice
spec:
  hosts:
    - "*"
  gateways:
    - myapp-gateway
  http:
    - match:
        - uri:
            exact: /api
      route:
        - destination:
            host: myapp-service
            subset: v2

---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: myapp-virtualservice
spec:
  hosts:
    - myapp-service
  http:
    - route:
        - destination:
            host: myapp-service
            subset: v2
---

I can reach my services from the external load balancer, however, I am attempting to route traffic to only subset v2 as is defined in my VirtualServices.

However, I only get round robin balancing between the two versions of my Deployment.

I've tried the troubleshooting links which suggest adding the subset to the VirtualService that has my gateway attached, but still without any success.

I've also tried setting a host name explicitly without luck.

What am I missing?