Merge pull request #80415 from amolnar-rh/OCPBUGS-38416

OCPBUGS-38416: Update detaching seed sno cluster via GitOps ZTP

Author: JoeAldinger

modules/cnf-image-based-upgrade-generate-seed-image.adoc

@@ -33,9 +33,9 @@ $ oc delete managedcluster sno-worker-example
 
 ... Wait until the `ManagedCluster` CR is removed. After the CR is removed, create the proper `SeedGenerator` CR. The {lcao} cleans up the {rh-rhacm} artifacts.
 
-.. If you are using {ztp}, detach your cluster by removing the seed cluster's `SiteConfig` CR from the `kustomization.yaml`:
+.. If you are using {ztp}, detach your cluster by removing the seed cluster's `SiteConfig` CR from the `kustomization.yaml`.
 
-... Remove your seed cluster's `SiteConfig` CR from the `kustomization.yaml`.
+... If you have a `kustomization.yaml` file that references multiple `SiteConfig` CRs, remove your seed cluster's `SiteConfig` CR from the `kustomization.yaml`:
 +
 [source,yaml]
 ----
@@ -48,7 +48,17 @@ generators:
 - example-target-sno3.yaml
 ----
 
-... Commit the `kustomization.yaml` changes in your Git repository and push the changes.
+... If you have a `kustomization.yaml` that references one `SiteConfig` CR, remove your seed cluster's `SiteConfig` CR from the `kustomization.yaml` and add the `generators: {}` line:
++
+[source,yaml]
+----
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+generators: {}
+----
+
+... Commit the `kustomization.yaml` changes in your Git repository and push the changes to your repository.
 +
 The ArgoCD pipeline detects the changes and removes the managed cluster.