ample -c istio-proxy -- curl -sSL -X POST 127.0.0.1:15000/drain_listeners</code></pre><p>从 <code>curl</code> Pod 调用 <code>HelloWorld</code> 服务：</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl exec --context=&#34;${CTX_R1_Z1}&#34; -n sample -c curl \
  &#34;$(kubectl get pod --context=&#34;${CTX_R1_Z1}&#34; -n sample -l \
  app=curl -o jsonpath=&#39;{.items[0].metadata.name}&#39;)&#34; \
  -- curl -sSL helloworld.sample:5000/hello
Hello version: region3.zone4, in