Merge pull request #37375 from gaogao101/work14

[zh] Update securing-a-cluster.md

content/zh-cn/docs/tasks/administer-cluster/securing-a-cluster.md

@@ -492,7 +492,7 @@ your backups using a well reviewed backup and encryption solution, and consider
 encryption where possible.
 
 Kubernetes supports [encryption at rest](/docs/tasks/administer-cluster/encrypt-data/), a feature 
-introduced in 1.7, and beta since 1.13. This will encrypt `Secret` resources in etcd, preventing
+introduced in 1.7, v1 beta since 1.13, and v2 alpha since 1.25. This will encrypt resources like `Secret` and `ConfigMap` in etcd, preventing
 parties that gain access to your etcd backups from viewing the content of those secrets. While
 this feature is currently beta, it offers an additional level of defense when backups
 are not encrypted or an attacker gains read access to etcd.
@@ -505,8 +505,8 @@ are not encrypted or an attacker gains read access to etcd.
 并考虑在可能的情况下使用全盘加密。
 
 Kubernetes 支持[静态数据加密](/zh-cn/docs/tasks/administer-cluster/encrypt-data/)。
-该功能在 1.7 版本引入，并在 1.13 版本成为 Beta。
-它会加密 etcd 里面的 `Secret` 资源，以防止某一方通过查看 etcd 的备份文件查看到这些
+该功能在 1.7 版引入，在 1.13 版成为 v1 Beta，在 1.25 版成为 v2 Alpha。
+它会加密 etcd 里面的 `Secret` 和 `ConfigMap` 资源，以防止某一方通过查看 etcd 的备份文件查看到这些
 Secret 的内容。虽然目前该功能还只是 Beta 阶段，
 在备份未被加密或者攻击者获取到 etcd 的读访问权限时，它仍能提供额外的防御层级。