 1973041
</code></pre></li><li><p>Send traffic to the sample application.</p><p>For the BookInfo sample, visit <code>http://$GATEWAY_URL/productpage</code> in your web browser or issue the following command:</p><pre><code class="language-bash">curl http://$GATEWAY_URL/productpage
</code></pre></li><li><p>Verify that the new metric values are being generated and collected.</p><p>In a Kubernetes environment, setup port-forwarding for Prometheus by executing the following command:</p><pre><code class="language