var errs error
	if un.IsList() {
		_ = un.EachListItem(func(item runtime.Object) error {
			castItem := item.(*unstructured.Unstructured)
			if castItem.GetKind() == gvk.Service.Kind {
				err := v.validateServicePortPrefix(istioNamespace, castItem)
				if err != nil {
					errs = multierror.Append(errs, err)
				}
			}
			if castItem.GetKind() == gvk.Deployment.Kind {