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+<!--
+Upgrade the CoreDNS addon
+-->
+升级 CoreDNS 插件
+
+<!--
+### Synopsis
+-->
+### 概要
+
+<!--
+Upgrade the CoreDNS addon
+-->
+升级 CoreDNS 插件
+
+```shell
+kubeadm upgrade node phase addon coredns [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">--config string</td>
+</tr>
+<tr>
+<td></td><td style="line-height: 130%; word-wrap: break-word;">
+<!--
+Path to a kubeadm configuration file.
+-->
+<p>
+kubeadm 配置文件的路径。
+</p>
+</td>
+</tr>
+
+<tr>
+<td colspan="2">--dry-run</td>
+</tr>
+<tr>
+<td></td><td style="line-height: 130%; word-wrap: break-word;">
+<p>
+<!--
+Do not change any state, just output the actions that would be performed.
+-->
+不改变任何状态，只输出将要执行的操作。
+</p>
+</td>
+</tr>
+
+<tr>
+<td colspan="2">-h, --help</td>
+</tr>
+<tr>
+<td></td><td style="line-height: 130%; word-wrap: break-word;">
+<!--
+help for coredns
+-->
+<p>
+coredns 操作的帮助命令。
+</p>
+</td>
+</tr>
+
+<tr>
+<td colspan="2">
+<!--
+--kubeconfig string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: "/etc/kubernetes/admin.conf"
+-->
+--kubeconfig string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;默认值: "/etc/kubernetes/admin.conf"
+</td>
+</tr>
+<tr>
+<td></td><td style="line-height: 130%; word-wrap: break-word;">
+<p>
+<!--
+The kubeconfig file to use when talking to the cluster. If the flag is not set, a set of standard locations can be searched for an existing kubeconfig file.
+-->
+用于和集群通信的 KubeConfig 文件。如果它没有被设置，那么 kubeadm 将会搜索一个已经存在于标准路径的 KubeConfig 文件。
+</p>
+</td>
+</tr>
+
+<tr>
+<td colspan="2">--patches string</td>
+</tr>
+<tr>
+<td></td><td style="line-height: 130%; word-wrap: break-word;"><p>
+<!--
+Path to a directory that contains files named &quot;target[suffix][+patchtype].extension&quot;. For example, &quot;kube-apiserver0+merge.yaml&quot; or just &quot;etcd.json&quot;. &quot;target&quot; can be one of &quot;kube-apiserver&quot;, &quot;kube-controller-manager&quot;, &quot;kube-scheduler&quot;, &quot;etcd&quot;, &quot;kubeletconfiguration&quot;. &quot;patchtype&quot; can be one of &quot;strategic&quot;, &quot;merge&quot; or &quot;json&quot; and they match the patch formats supported by kubectl. The default &quot;patchtype&quot; is &quot;strategic&quot;. &quot;extension&quot; must be either &quot;json&quot; or &quot;yaml&quot;. &quot;suffix&quot; is an optional string that can be used to determine which patches are applied first alpha-numerically.
+-->
+包含名为 &quot;target[suffix][+patchtype].extension&quot; 的文件的目录的路径。
+例如，&quot;kube-apiserver0+merge.yaml&quot;或仅仅是 &quot;etcd.json&quot;。
+&quot;target&quot; 可以是 &quot;kube-apiserver&quot;、&quot;kube-controller-manager&quot;、&quot;kube-scheduler&quot;、&quot;etcd&quot;、&quot;kubeletconfiguration&quot; 之一。
+&quot;patchtype&quot; 可以是 &quot;strategic&quot;、&quot;merge&quot; 或者 &quot;json&quot; 之一，
+并且它们与 kubectl 支持的补丁格式相同。
+默认的 &quot;patchtype&quot; 是 &quot;strategic&quot;。
+&quot;extension&quot; 必须是&quot;json&quot; 或&quot;yaml&quot;。
+&quot;suffix&quot; 是一个可选字符串，可用于确定首先按字母顺序应用哪些补丁。
+</p></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;"><p>
+<!--
+The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.
+-->
+到“真实”主机根文件系统的路径。设置此参数将导致 kubeadm 切换到所提供的路径。
+</p>
+</td>
+</tr>
+
+</tbody>
+</table>