Add logrotation section on Running Filebeat on k8s (elastic#24120)

(cherry picked from commit ea5d413)

filebeat/docs/running-on-kubernetes.asciidoc

@@ -218,3 +218,12 @@ annotations:
     co.elastic.logs.json-logging/json.add_error_key: "true"
     co.elastic.logs.json-logging/json.message_key: "message"
 ------------------------------------------------
+
+[float]
+==== Logrotation
+
+According to https://kubernetes.io/docs/concepts/cluster-administration/logging/#logging-at-the-node-level[kubernetes documentation]
+_Kubernetes is not responsible for rotating logs, but rather a deployment tool should set up a solution to address that_.
+Different logrotation strategies can cause issues that might make Filebeat losing events or even duplicating events.
+Users can find more information about Filebeat's logrotation best practises at Filebeat's
+<<file-log-rotation,log rotation specific documentation>>