traffic is routed
to <code>reviews:v1</code> for all users except Jason.</p></li></ol><p>You have successfully configured Istio to route traffic based on user identity.</p><h2 id=understanding-what-happened>Understanding what happened</h2><p>In this task, you used Istio to send 100% of the traffic to the <code>v1</code> version
of each of the Bookinfo services. You then set a rule to selectively send traffic
to version <code>v2</code> of the <code>reviews</code> service based on a custom <code>end-user</cod