Merge pull request #41262 from rh-tokeefe/OSSMDOC-365

OSSMDOC-365: Add an admonition to Elasticsearch Operator

Author: JStickler

modules/ossm-install-ossm-operator.adoc

@@ -8,7 +8,7 @@
 
 To install {ProductName}, install following Operators in this order. Repeat the procedure for each Operator.
 
-* Optional: OpenShift Elasticsearch
+* OpenShift Elasticsearch
 * Jaeger
 * Kiali
 * {ProductName}
@@ -22,9 +22,17 @@ To install {ProductName}, install following Operators in this order. Repeat the
 . Type the name of the Operator into the filter box and select the Red Hat version of the Operator. Community versions of the Operators are not supported.
 
 . Click *Install*.
++
+[NOTE]
+====
+If you have already installed the OpenShift Elasticsearch Operator as part of OpenShift
+Logging, you do not need to install the OpenShift Elasticsearch Operator again. The
+Jaeger Operator will create the Elasticsearch instance using the installed OpenShift
+Elasticsearch Operator.
+====
 
 . On the *Install Operator* page, select installation options.
-.. For the OpenShift Elasticsearch Operator, in the *Update Channel* section, select *stable-5.x*.
+.. For the OpenShift Elasticsearch Operator, in the *Update Channel* section, select *stable-5.x*. The Elasticsearch installation requires the `openshift-operators-redhat` namespace for the OpenShift Elasticsearch Operator. The other Red Hat OpenShift Service Mesh operators are installed in the `openshift-operators` namespace.
 .. For the Jaeger, Kiali, and {ProductName} Operators, accept the defaults.
 +
 The Jaeger, Kiali and {ProductName} are installed in the `openshift-operators` namespace. The OpenShift Elasticsearch Operator is installed in the `openshift-operators-redhat` namespace.