apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: app-backend
  namespace: istio
spec:
  hosts:
    - app-backend
    - "${APP_HOST}"
  gateways:
    - app-gateway
    - mesh
  http:
    - route:
        - destination:
            host: app-backend
            subset: v1
          weight: 90
        - destination:
            host: app-backend
            subset: v2
          weight: 10