</code></pre><p>从 <code>sleep</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;${CTX_R1_Z1}&#34; -n sample -c sleep \
  &#34;$(kubectl get pod --context=&#34;${CTX_R1_Z1}&#34; -n sample -l \
  app=sleep -o jsonpath=&#39;{.items[0].metadata.name}&#39;)&#34; \
  -- curl -sSL helloworld.sample:5000/hello
Hello version: region2.zone3, instance: helloworld-region2.zone3-86f77cd7b-cpxhv
</code></pre><p>第�