Bug 1808386

Summary:	"openshift_cluster_monitoring_operator_etcd_enabled" variable not defined in the documentation.
Product:	OpenShift Container Platform	Reporter:	Palash Khaire <pkhaire>
Component:	Documentation	Assignee:	Maxim Svistunov <msvistun>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Junqi Zhao <juzhao>
Severity:	low	Docs Contact:	Vikram Goyal <vigoyal>
Priority:	low
Version:	3.11.0	CC:	aos-bugs, dkulkarn, jokerman, juzhao
Target Milestone:	---
Target Release:	3.11.z
Hardware:	All
OS:	Linux
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Last Closed:	2020-05-13 11:06:27 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Palash Khaire 2020-02-28 11:38:38 UTC

Document URL: https://docs.openshift.com/container-platform/3.11/install_config/prometheus_cluster_monitoring.html#configuring-etcd-monitoring_prometheus-cluster-monitoring

Section Number and Name: Configuring etcd monitoring.

Describe the issue: Configuring etcd monitoring through the parameter.

Suggestions for improvement: "openshift_cluster_monitoring_operator_etcd_enabled" 

Additional information: 
"openshift_cluster_monitoring_operator_etcd_enabled" variable not defined in the documentation but the same is added/mentioned in the github documentation:

1. https://github.com/openshift/openshift-ansible/blob/release-3.11/roles/openshift_cluster_monitoring_operator/defaults/main.yml

2. https://github.com/openshift/openshift-ansible/blob/release-3.11/roles/openshift_cluster_monitoring_operator/templates/cluster-monitoring-operator-config.j2

Is this something that can be configured? 
Can we enable etcd_monitoring by adding the same at the time of installation?