subset of the <code>reviews</code> service:</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: reviews
spec:
  hosts:
  - reviews
  http:
  - route:
    - destination:
        host: reviews
        subset: v1
</code></pre></li></ol><p>The default Istio behavior conveniently sends traffic from any source
to all versions of the destination service without you setting any rules.
As soon as you need to different