clean exit if certmanager or multus is not installed

main.go

@@ -76,6 +76,7 @@ import (
 	corev1 "github.com/openstack-k8s-operators/openstack-operator/apis/core/v1beta1"
 	dataplanev1 "github.com/openstack-k8s-operators/openstack-operator/apis/dataplane/v1beta1"
 
+	nadv1 "github.com/k8snetworkplumbingwg/network-attachment-definition-client/pkg/apis/k8s.cni.cncf.io/v1"
 	ocp_configv1 "github.com/openshift/api/config/v1"
 	clientcontrollers "github.com/openstack-k8s-operators/openstack-operator/controllers/client"
 	corecontrollers "github.com/openstack-k8s-operators/openstack-operator/controllers/core"
@@ -117,7 +118,6 @@ func init() {
 	utilruntime.Must(swiftv1.AddToScheme(scheme))
 	utilruntime.Must(clientv1.AddToScheme(scheme))
 	utilruntime.Must(routev1.AddToScheme(scheme))
-	utilruntime.Must(certmgrv1.AddToScheme(scheme))
 	utilruntime.Must(barbicanv1.AddToScheme(scheme))
 	utilruntime.Must(ocp_configv1.AddToScheme(scheme))
 	//+kubebuilder:scaffold:scheme
@@ -197,6 +197,18 @@ func main() {
 		os.Exit(1)
 	}
 
+	err = certmgrv1.AddToScheme(scheme)
+	if err != nil {
+		setupLog.Error(err, "cert-manager is not installed, unable to create controller", "controller", "OpenStackControlPlane")
+		os.Exit(1)
+	}
+
+	err = nadv1.AddToScheme(scheme)
+	if err != nil {
+		setupLog.Error(err, "multus CNI is not installed and required by multiple service operators, unable to create controller", "controller", "OpenStackControlPlane")
+		os.Exit(1)
+	}
+
 	if err = (&corecontrollers.OpenStackControlPlaneReconciler{
 		Client:  mgr.GetClient(),
 		Scheme:  mgr.GetScheme(),