Merge pull request #35854 from reginapizza/rescott-gitops4.8CrossNamespacePermissionCleanup

Update steps to account for cross-namespace Argo CD permission cleanup

Author: Preeticp

modules/gitops-creating-an-application-by-using-the-argo-cd-dashboard.adoc

@@ -52,3 +52,7 @@ Directory Recurse:: `checked`
 endif::app[]
 
 . Click *Create* to create your application.
+
+. Open the *Administrator* perspective of the web console and navigate to *Administration* -> *Namespaces* in the menu on the left.
+
+. Search for and select the namespace, then enter `argocd.argoproj.io/managed-by=openshift-gitops` in the *Labels* field so that the Argo CD instance in the `openshift-gitops` namespace can manage your namespace.

modules/gitops-creating-an-application-by-using-the-oc-tool.adoc

@@ -47,3 +47,20 @@ endif::cluster[]
 ----
 $ oc get application -n openshift-gitops
 ----
+
+. Add a label to the namespace your application is deployed in so that the Argo CD instance in the `openshift-gitops` namespace can manage it:
+
+ifdef::app[]
++
+[source,terminal]
+----
+$ oc label namespace springpet-clinic argocd.argoproj.io/managed-by=openshift-gitops
+----
+endif::app[]
+ifdef::cluster[]
++
+[source,terminal]
+----
+$ oc label namespace default argocd.argoproj.io/managed-by=openshift-gitops
+----
+endif::cluster[]