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+<!--
+Run master pre-flight checks
+
+### Synopsis
+
+
+Run master pre-flight checks, functionally equivalent to what implemented by kubeadm init. 
+
+Alpha Disclaimer: this command is currently alpha.
+
+```
+kubeadm alpha phase preflight master [flags]
+```
+
+### Examples
+
+```
+  # Run master pre-flight checks.
+  kubeadm alpha phase preflight master
+```
+
+### Options
+-->
+
+执行主节点运行前检查
+
+### 简介
+
+
+运行前检查，功能上与 kubeadm init 实现的功能相同。
+
+Alpha 免责声明：此命令目前是试运行版本。
+
+```
+kubeadm alpha phase preflight master [flags]
+```
+
+### 例子
+
+```
+  ＃执行主节点运行前检查
+ kubeadm alpha phase preflight master
+```
+
+### 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">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">help for master</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">--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">--ignore-preflight-errors stringSlice</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">A list of checks whose errors will be shown as warnings. Example: 'IsPrivilegedUser,Swap'. Value 'all' ignores errors from all checks.</td>
+    </tr>
+
+    <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">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">主节点帮助</td>
+    </tr>
+
+  </tbody>
+</table>
+
+
+
+### 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">--config string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">kubeadm 配置文件路径(警告：使用配置文件为测试版本)</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--ignore-preflight-errors stringSlice</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">一系列检查，其错误将显示为警告。示例：'IsPrivilegedUser,Swap'。值'all'忽略所有检查的错误。</td>
+    </tr>
+
+    <tr>
+      <td colspan="2">--rootfs string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;"> [EXPERIMENTAL] 宿主机根文件系统的路径。</td>
+    </tr>
+
+  </tbody>
+</table>
+
+
+