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+
+为 etcd 节点生成相互通信的证书
+<!--
+Generates the credentials for etcd nodes to communicate with each other
+-->
+
+<!--
+### Synopsis
+-->
+
+### 概要
+
+<!--
+Generates the credentials for etcd nodes to communicate with each other, and saves them into etcd/peer.cert and etcd/peer.key files.
+-->
+为 etcd 节点生成证书以便相互通信。并将这些证书保存到 etcd/peer.cert 和 etcd/peer.key 文件中。
+
+<!--
+Default SANs are localhost, 127.0.0.1, 127.0.0.1, ::1 
+-->
+默认 SAN 是 localhost、127.0.0.1 和 ::1
+
+<!--
+If both files already exist, kubeadm skips the generation step and existing files will be used. 
+-->
+如果两个文件都已存在，kubeadm 将跳过生成步骤并使用现有文件。
+
+<!--
+Alpha Disclaimer: this command is currently alpha.
+-->
+Alpha 免责声明：此命令目前属于 alpha 阶段。
+
+```
+kubeadm alpha phase certs etcd-peer [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">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值： "/etc/kubernetes/pki"</td>
+    </tr>
+<!--
+      <td colspan="2">--cert-dir string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "/etc/kubernetes/pki"</td>
+-->
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">证书的保存路径</td>
+    </tr>
+<!--
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">The path where to save the certificates</td>
+-->
+
+    <tr>
+      <td colspan="2">--config string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">kubeadm 配置文件的路径（警告：配置文件的使用是实验性的）</td>
+    </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>
+      <td colspan="2">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">etcd-peer 的帮助信息</td>
+    </tr>
+<!--
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">help for etcd-peer</td>
+-->
+
+  </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;">[实验] 到'真实'主机根文件系统的路径。</td>
+    </tr>
+<!--
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">[EXPERIMENTAL] The path to the 'real' host root filesystem.</td>
+-->
+
+  </tbody>
+</table>
+
+
+