title: Routing requests to services based on URI prefix in Istio VS
body: <p>This is what I want to achieve:
  Route traffic to a service based on the URI prefix</p>
  <p>Problem I'm facing:
  Unable to segregate the prefix from the context path</p>
  <p>Explanation:</p>
  <p>I want to route traffic to a services based on the prefix.
  Say, <em>/<strong>dev</strong>/service/context/path/</em>  and <em>/<strong>test</strong>/service/context/path/</em> .
  But I'm not able to do so without changing the context path of the application itself.</p>
  <p>Is there a way I can segregate the prefix part of URI from the context path of application?</p>
  <p>This is what my VS looks like:</p>
  <pre><code>apiVersion: networking.istio.io/v1alpha3
  kind: VirtualService
  metadata:
    name: servicea
    namespace: dev
  spec:
    hosts:
    - &quot;*&quot;
    gateways:
    - dev-gateway
    http:
    - match:
      - uri:
          prefix: /dev
      route:
      - destination:
          port:
            number: 8080
          host: servicea
  </code></pre>
  <p>Thanks</p>