Use storagemgmt network by default if defined

Swift uses the storage network currently, but the correct network should
be the storagemgmt one. This fix prefers the storagemgmt and falls back
to storage to prevent failures in already deployed environments.

controllers/swiftstorage_controller.go

@@ -343,9 +343,15 @@ func (r *SwiftStorageReconciler) Reconcile(ctx context.Context, req ctrl.Request
 		for _, swiftPod := range podList.Items {
 			dnsIP := ""
 			if len(instance.Spec.NetworkAttachments) > 0 {
-				dnsIP, err = getPodIPInNetwork(swiftPod, instance.Namespace, "storage")
+				dnsIP, err = getPodIPInNetwork(swiftPod, instance.Namespace, "storagemgmt")
+
 				if err != nil {
-					return ctrl.Result{}, err
+					previousErr := err
+					dnsIP, err = getPodIPInNetwork(swiftPod, instance.Namespace, "storage")
+					if err != nil {
+						err = errors.Join(previousErr, err)
+						return ctrl.Result{}, err
+					}
 				}
 			}