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+
+<!--
+Generates the certificate for serving the kubernetes API
+-->
+生成用于 Kubernetes API 的证书
+
+<!--
+### Synopsis
+-->
+### 概要
+
+<!--
+Generates the certificate for serving the kubernetes API, and saves them into apiserver.cert and apiserver.key files.
+-->
+生成用于 Kubernetes API 的证书，并把证书保存到 apiserver.cert 和 apiserver.key 文件中。
+
+<!--
+Default SANs are kubernetes, kubernetes.default, kubernetes.default.svc, kubernetes.default.svc.cluster.local, 10.96.0.1, 127.0.0.1 
+-->
+默认的 SAN 是 kubernetes、kubernetes.default、kubernetes.default.svc、kubernetes.default.svc.cluster.local、10.96.0.1、127.0.0.1。
+
+<!--
+If both files already exist, kubeadm skips the generation step and existing files will be used. 
+-->
+如果这两个文件已经存在，kubeadm 将跳过生成步骤直接使用现有文件。
+
+<!--
+Alpha Disclaimer: this command is currently alpha.
+-->
+Alpha 免责声明：此命令目前处于 alpha 阶段。
+
+```
+kubeadm alpha phase certs apiserver [flags]
+```
+
+<!--
+### Options
+-->
+### 选项
+
+<!--
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">--apiserver-advertise-address string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">The IP address the API server is accessible on, to use for the API server serving cert</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--apiserver-cert-extra-sans stringSlice</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">Optional extra altnames to use for the API server serving cert. Can be both IP addresses and DNS names</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "/etc/kubernetes/pki"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">The path where to save the certificates</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--config string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">Path to kubeadm config file (WARNING: Usage of a configuration file is experimental)</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">help for apiserver</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--service-cidr string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "10.96.0.0/12"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">Alternative range of IP address for service VIPs, from which derives the internal API server VIP that will be added to the API Server serving cert</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--service-dns-domain string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "cluster.local"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">Alternative domain for services, to use for the API server serving cert</td>
+    </tr>
+
+  </tbody>
+</table>
+-->
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">--apiserver-advertise-address string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">API 服务器可访问的 IP 地址，用于提供证书的 API 服务器</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--apiserver-cert-extra-sans stringSlice</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">为证书提供服务的 API 服务器使用的可选的额外 altname， 可以是 IP 地址和 DNS 名称。</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认："/etc/kubernetes/pki"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">保存证书的路径</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--config string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">kubeadm config 文件路径（警告： 配置文件的使用是实验性的）</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">apiserver 的帮助信息</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--service-cidr string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值："10.96.0.0/12"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">服务 VIP 的可选 IP 地址范围，从中会产生将添加到提供证书的 API 服务器的内部 API 服务器的 VIP</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--service-dns-domain string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值："cluster.local"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">服务的备用域，用于提供证书的 API 服务器</td>
+    </tr>
+
+  </tbody>
+</table>
+-->
+
+<!--
+### Options inherited from parent commands
+-->
+
+### 从父命令继承的选项
+
+<!--
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">--rootfs string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">[EXPERIMENTAL] The path to the 'real' host root filesystem.</td>
+    </tr>
+
+  </tbody>
+</table>
+-->
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">--rootfs string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">[实验] 到'真实'主机根文件系统的路径</td>
+    </tr>
+
+  </tbody>
+</table>
+