.data[&#34;cert-chain.pem&#34;]&#39; | base64 --decode | openssl x509 -noout -text | grep &#34;Not After&#34; -C 1
  Not Before: Jun  1 18:23:30 2019 GMT
  Not After : Aug 30 18:23:30 2019 GMT
Subject:
</code></pre><div><aside class="callout tip"><div class=type><svg class="large-icon"><use xlink:href="/v1.6/img/icons.svg#callout-tip"/></svg></div><div class=content>不要忘记将 <code>istio.default</code> 和 <code>-n default</code> 替换成 <code>istio.YourServiceAccount</code> 和 <code>-n YourNamespa