Merge pull request #38218 from vendrov/patch-1

Automatic merge from submit-queue

enable the kubernetes-metadata-plugin in a case of daemonSet

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instruction to users that would like to enable the fluentd kubernetes-metadata plugin.
Relevant only if you are using daemon-set

cluster/addons/fluentd-elasticsearch/fluentd-es-image/td-agent.conf

@@ -277,6 +277,7 @@
   tag cluster-autoscaler
 </source>
 
+# Uncomment in a case of daemon-set usage
 #<filter kubernetes.**>
 #  type kubernetes_metadata
 #</filter>