Add externally managed annotations to IBMPowerVSCluster resource (#899)

Author: Karthik-K-N

controllers/ibmpowervscluster_controller.go

@@ -36,6 +36,7 @@ import (
 
 	capiv1beta1 "sigs.k8s.io/cluster-api/api/v1beta1"
 	"sigs.k8s.io/cluster-api/util"
+	"sigs.k8s.io/cluster-api/util/predicates"
 
 	infrav1beta1 "sigs.k8s.io/cluster-api-provider-ibmcloud/api/v1beta1"
 	"sigs.k8s.io/cluster-api-provider-ibmcloud/cloud/scope"
@@ -241,5 +242,6 @@ func (c clusterDescendants) filterOwnedDescendants(cluster *infrav1beta1.IBMPowe
 func (r *IBMPowerVSClusterReconciler) SetupWithManager(mgr ctrl.Manager) error {
 	return ctrl.NewControllerManagedBy(mgr).
 		For(&infrav1beta1.IBMPowerVSCluster{}).
+		WithEventFilter(predicates.ResourceIsNotExternallyManaged(ctrl.LoggerFrom(context.TODO()))).
 		Complete(r)
 }