Merge pull request #48703 from my-git9/pp-16568

[zh-cn]sync reload-kubelet-server-certificate-file

content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/reload-kubelet-server-certificate-file.md

@@ -0,0 +1,24 @@
+---
+title: ReloadKubeletServerCertificateFile
+content_type: feature_gate
+_build:
+  list: never
+  render: false
+
+stages:
+  - stage: beta
+    defaultValue: true
+    fromVersion: "1.31"
+
+---
+
+<!--
+Enable the kubelet TLS server to update its certificate if the specified certificate file are changed.
+
+This feature is useful when specifying `tlsCertFile` and `tlsPrivateKeyFile` in kubelet configuration.
+The feature gate has no effect for other cases such as using TLS boostrap.
+-->
+允许 kubelet TLS 服务器在指定的证书文件发生变化时更新其证书。
+
+此特性在 kubelet 配置中指定了 `tlsCertFile` 和 `tlsPrivateKeyFile` 时非常有用。
+对于其他情况，例如使用 TLS 引导启动时，此特性门控无效。