added setting up argo cd instance

made review changes

made review changes

rectified typo

swapped steps

made review changes

made review changes

made review changes

made review changes

made changes

removed extra lines

changed modules included

made review changes

made review changes

_topic_maps/_topic_map.yml

@@ -1625,6 +1625,8 @@ Topics:
     File: installing-openshift-gitops
   - Name: Uninstalling OpenShift GitOps
     File: uninstalling-openshift-gitops
+  - Name: Setting up a new Argo CD instance
+    File: setting-up-argocd-instance
   - Name: Configuring an OpenShift cluster by deploying an application with cluster configurations
     File: configuring-an-openshift-cluster-by-deploying-an-application-with-cluster-configurations
   - Name: Deploying a Spring Boot application with Argo CD

cicd/gitops/setting-up-argocd-instance.adoc

@@ -0,0 +1,15 @@
+:_content-type: ASSEMBLY
+[id="setting-up-argocd-instance"]
+= Setting up a new Argo CD instance
+include::_attributes/common-attributes.adoc[]
+:context: setting-up-argocd-instance
+
+toc::[]
+
+By default, the {gitops-title} installs an instance of Argo CD in the `openshift-gitops` namespace with additional permissions for managing certain cluster-scoped resources. To manage cluster configurations or deploy applications, you can install and deploy a new Argo CD instance. By default, any new instance has permissions to manage resources only in the namespace where it is deployed.
+
+include::modules/gitops-argo-cd-installation.adoc[leveloffset=+1]
+
+include::modules/gitops-enable-replicas-for-argo-cd-server.adoc[leveloffset=+1]
+
+include::modules/gitops-deploy-resources-different-namespaces.adoc[leveloffset=+1]

modules/gitops-argo-cd-installation.adoc

@@ -0,0 +1,26 @@
+// Module included in the following assemblies:
+//
+// * gitops-argo-cd-installation.adoc
+
+:_content-type: PROCEDURE
+[id="gitops-argo-cd-installation_{context}"]
+= Installing Argo CD 
+
+To manage cluster configurations or deploy applications, you can install and deploy a new Argo CD instance.
+
+.Procedure
+. Log in to the {product-title} web console. 
+
+. Click *Operators* -> *Installed Operators*.
+
+. Create or select the project where you want to install the Argo CD instance from the *Project* drop-down menu.
+
+. Select *Openshift GitOps Operator* from the installed operators and select the *Argo CD* tab.
+
+. Click *Create* to configure the following parameters:
+
+.. For *Name*, enter `/`.
+
+.. Create an external OS Route to access Argo CD server. Click *Server* -> *Route* and, for *Enable Route*, select *true*.
+
+. To open the Argo CD web UI, click the route that is created in the project where the Argo CD instance is installed.

modules/gitops-deploy-resources-different-namespaces.adoc

@@ -0,0 +1,21 @@
+// Module included in the following assemblies:
+//
+// * gitops-argo-cd-installation.adoc
+
+:_content-type: PROCEDURE
+[id="gitops-deploy-resources-different-namespaces_{context}"]
+= Deploying resources to a different namespace
+
+To allow Argo CD to manage resources in other namespaces apart from where it is installed, configure the target namespace with a `argocd.argoproj.io/managed-by` label.
+
+.Procedure
+
+* Configure the namespace:
++
+[source,terminal]
+----
+$ oc label namespace <namespace> && \
+argocd.argoproj.io/managed-by=<instance_name> <1>
+----
+<1> The namespace where Argo CD is installed. 
+

modules/gitops-enable-replicas-for-argo-cd-server.adoc

@@ -0,0 +1,37 @@
+// Module included in the following assemblies:
+//
+// * gitops-argo-cd-installation.adoc
+
+:_content-type: PROCEDURE
+[id="gitops-enable-replicas-for-argo-cd-server_{context}"]
+= Enabling replicas for Argo CD server and repo server
+
+Argo CD-server and Argo CD-repo-server workloads are stateless. To better distribute your workloads among pods, you can increase the number of Argo CD-server and  Argo CD-repo-server replicas. However, if a horizontal autoscaler is enabled on the Argo CD-server, it overrides the number of replicas you set.
+
+.Procedure
+
+* Set the `replicas` parameters for the `repo` and `server` spec to the number of replicas you want to run:
++
+.Example Argo CD custom resource
+
+[source,yaml]
+----
+apiVersion: argoproj.io/v1alpha1
+kind: ArgoCD
+metadata:
+  name: example-argocd
+  labels:
+    example: repo
+spec:
+  repo:
+    replicas: <number_of_replicas>
+  server:
+    replicas: <number_of_replicas>
+    route:
+      enabled: true
+      path: /
+      tls:
+        insecureEdgeTerminationPolicy: Redirect
+        termination: passthrough
+      wildcardPolicy: None
+----