added doc for accessing webui when using external nomad

Author: atulsingh0

docs/server-admin-4.8/modules/operator/pages/introduction-to-nomad-cluster-operation.adoc

@@ -90,13 +90,20 @@ Complete the following steps to get logs from the allocation of the specified jo
 
 Nomad provides a web UI for inspecting your Nomad cluster. If you are using an internalized Nomad deployment, which is the default setup with CircleCI server, follow the instructions in this section to temporarily access the UI for troubleshooting purposes. For a more permanent solution, consider externalizing Nomad and consult the official Nomad documentation for setting up routing.
 
-. Nomad binds to its Pod IP. To port-forward to the Nomad service, you need to set up a lightweight tunneling mechanism within the cluster as follows:
+. When using Nomad in k8s, it binds to its Pod IP. Use below command to fetch the IP of the Nomad server:
 +
 [source,bash]
 ----
-export NOMAD_IP=$(kubectl get svc nomad-server -o jsonpath='{.spec.clusterIP}' -n <server-namespace>)
+export NOMAD_ADDR=$(kubectl get svc nomad-server -o jsonpath='{.spec.clusterIP}' -n <server-namespace>)
+----
+
+. If using Externalized Nomad, Use Nomad Network Load Balancer or DNS address to port-forward to access webui.
 
-kubectl run nomad-tunnel --rm -it --restart=Never --image=alpine/socat -n <server-namespace> -- TCP-LISTEN:4646,fork,reuseaddr TCP:$NOMAD_IP:4646
+. To port-forward to the Nomad service, you need to set up a lightweight tunneling mechanism within the cluster as follows:
++
+[source,bash]
+----
+kubectl run nomad-tunnel --rm -it --restart=Never --image=alpine/socat -n <server-namespace> -- TCP-LISTEN:4646,fork,reuseaddr TCP:$NOMAD_ADDR:4646
 ----
 
 . In another terminal, run the following command to set up port forwarding:
@@ -106,7 +113,7 @@ kubectl run nomad-tunnel --rm -it --restart=Never --image=alpine/socat -n <serve
 kubectl port-forward pod/nomad-tunnel 4646:4646 -n <server-namespace>
 ----
 
-. Navigate to ++`http://localhost:4646/ui`++ in your browser to access the Nomad UI. For more information on utilizing the Nomad UI, refer to the link:https://developer.hashicorp.com/nomad/tutorials/web-ui[Nomad documentation].
+. Navigate to `http[s]://localhost:4646/ui` in your browser to access the Nomad UI. For more information on utilizing the Nomad UI, refer to the link:https://developer.hashicorp.com/nomad/tutorials/web-ui[Nomad documentation].
 
 [#shutting-down-a-nomad-client]
 === Shutting down a Nomad client