if routes == nil || routes.Namespaces == nil || routes.Namespaces.Selector == nil {
		return nil
	}
	res := []string{}
	for k := range routes.Namespaces.Selector.MatchLabels {
		res = append(res, k)
	}
	for _, me := range routes.Namespaces.Selector.MatchExpressions {
		if me.Operator == metav1.LabelSelectorOpNotIn || me.Operator == metav1.LabelSelectorOpDoesNotExist {