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+<!-- 
+Generates a private key for signing service account tokens along with its public key
+
+### Synopsis
+ -->
+
+生成私钥用于与公钥一起签署服务账户令牌
+
+### 概要
+
+
+<!-- Generates the private key for signing service account tokens along with its public key, and saves them into sa.key and sa.pub files. If both files already exist, kubeadm skips the generation step and existing files will be used. 
+
+Alpha Disclaimer: this command is currently alpha. -->
+
+生成私钥用于与公钥一起签署服务账户令牌，并把它们存储在 sa.key 和 sa.pub 文件中。如果这两个文件都存在，kubeadm会跳过生成步骤并使用现存的文件。
+
+Alpha 免责声明：此命令处于 alpha 阶段。
+
+
+```
+kubeadm alpha phase certs sa [flags]
+```
+
+<!-- ### Options
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <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 sa</td>
+    </tr>
+
+  </tbody>
+</table>
+ -->
+### 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">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值： "/etc/kubernetes/pki"</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">证书存储路径</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--config string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">kubeadm config 配置文件路径（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;">sa 帮助</td>
+    </tr>
+
+  </tbody>
+</table>
+
+
+<!-- ### Options inherited from parent commands
+
+<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>
+ -->
+
+### 继承于父命令的选项
+
+<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;">[实验性] 主机根目录文件系统“真实”路径。.</td>
+    </tr>
+
+  </tbody>
+</table>