Added watch for subscription and SMCP

pkg/operator/controller/gatewayclass/controller.go

@@ -5,6 +5,9 @@ import (
 
 	logf "github.com/openshift/cluster-ingress-operator/pkg/log"
 
+	maistrav2 "github.com/maistra/istio-operator/pkg/apis/maistra/v2"
+	operatorsv1alpha1 "github.com/operator-framework/api/pkg/operators/v1alpha1"
+
 	"k8s.io/client-go/tools/record"
 
 	gatewayapiv1beta1 "sigs.k8s.io/gateway-api/apis/v1beta1"
@@ -14,6 +17,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/cache"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/controller"
+	"sigs.k8s.io/controller-runtime/pkg/event"
 	"sigs.k8s.io/controller-runtime/pkg/handler"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/predicate"
@@ -61,6 +65,24 @@ func NewUnmanaged(mgr manager.Manager, config Config) (controller.Controller, er
 	if err := c.Watch(source.Kind(operatorCache, &gatewayapiv1beta1.GatewayClass{}), &handler.EnqueueRequestForObject{}, isOurGatewayClass, predicate.Not(isIstioGatewayClass)); err != nil {
 		return nil, err
 	}
+	if err := c.Watch(source.Kind(operatorCache, &maistrav2.ServiceMeshControlPlane{}), &handler.EnqueueRequestForObject{}, predicate.Funcs{
+		CreateFunc:  func(e event.CreateEvent) bool { return false },
+		DeleteFunc:  func(e event.DeleteEvent) bool { return true },
+		UpdateFunc:  func(e event.UpdateEvent) bool { return false },
+		GenericFunc: func(e event.GenericEvent) bool { return false },
+	}); err != nil {
+		return nil, err
+	}
+
+	if err := c.Watch(source.Kind(operatorCache, &operatorsv1alpha1.Subscription{}), &handler.EnqueueRequestForObject{}, predicate.Funcs{
+		CreateFunc:  func(e event.CreateEvent) bool { return false },
+		DeleteFunc:  func(e event.DeleteEvent) bool { return true },
+		UpdateFunc:  func(e event.UpdateEvent) bool { return false },
+		GenericFunc: func(e event.GenericEvent) bool { return false },
+	}); err != nil {
+		return nil, err
+	}
+
 	return c, nil
 }