this causes, access the Bookinfo app&rsquo;s <code>/productpage</code> in a browser and refresh several times.
You’ll notice that sometimes the book review output contains star ratings and other times it does not.
This is because without an explicit default service version to route to, Istio routes requests to all available versions
in a round robin fashion.</p><p>The initial goal of this task is to apply rules that route all traffic to <code>v1</code> (version 1) of the microservices. Later, you
will app