From 159234a0a6332e1007a8700e27eec9aaa861a622 Mon Sep 17 00:00:00 2001
From: Mengjiao Liu <mengjiao.liu@daocloud.io>
Date: Tue, 23 Nov 2021 15:51:22 +0800
Subject: [PATCH] kubelet: sysctls allows slashes as a separator

---
 .../docs/tasks/administer-cluster/sysctl-cluster.md   | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/content/en/docs/tasks/administer-cluster/sysctl-cluster.md b/content/en/docs/tasks/administer-cluster/sysctl-cluster.md
index f81623982f..791df4a2b4 100644
--- a/content/en/docs/tasks/administer-cluster/sysctl-cluster.md
+++ b/content/en/docs/tasks/administer-cluster/sysctl-cluster.md
@@ -13,6 +13,17 @@ This document describes how to configure and use kernel parameters within a
 Kubernetes cluster using the {{< glossary_tooltip term_id="sysctl" >}}
 interface.
 
+{{< note >}}
+Starting from Kubernetes version 1.23, the kubelet supports the use of either `/` or `.`
+as separators for sysctl names. 
+For example, you can represent the same sysctl name as `kernel.shm_rmid_forced` using a
+period as the separator, or as `kernel/shm_rmid_forced` using a slash as a separator.
+For more sysctl parameter conversion method details, please refer to
+the page [sysctl.d(5)](https://man7.org/linux/man-pages/man5/sysctl.d.5.html) from
+the Linux man-pages project.
+Setting Sysctls for a Pod and PodSecurityPolicy features do not yet support 
+setting sysctls with slashes.
+{{< /note >}}
 ## {{% heading "prerequisites" %}}