apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: guestbook-ui
spec:
  hosts:
  - guestbook-ui
  http:
  - match:
    - uri:
        prefix: "/"
    route:
    - destination:
        host: guestbook-ui
        subset: v2
  - route:
    - destination:
        host: guestbook-ui
        subset: v1