Update kubelet-config-file.md (#27192)

* Update kubelet-config-file.md

add note and link to kubeadm/kubelet-integration

* Update content/en/docs/tasks/administer-cluster/kubelet-config-file.md

Co-authored-by: Qiming Teng <[email protected]>

Co-authored-by: Qiming Teng <[email protected]>

Author: rdxmb

content/en/docs/tasks/administer-cluster/kubelet-config-file.md

@@ -53,6 +53,11 @@ For a trick to generate a configuration file from a live node, see
 
 ## Start a Kubelet process configured via the config file
 
+{{< note >}}
+If you use kubeadm to initialize your cluster, use the kubelet-config while creating your cluster with `kubeadmin init`.
+See [configuring kubelet using kubeadm](/docs/setup/production-environment/tools/kubeadm/kubelet-integration/) for details.
+{{< /note >}}
+
 Start the Kubelet with the `--config` flag set to the path of the Kubelet's config file.
 The Kubelet will then load its config from this file.
 
@@ -80,4 +85,3 @@ is considered the default "last known good" configuration by the automatic rollb
 
 
 
-