func isTypeLoadBalancer(service *core.Service) bool {
	return service.Spec.Type == core.ServiceTypeLoadBalancer
}

// sameLoadBalancerClass check two services have the same loadBalancerClass or not
func sameLoadBalancerClass(oldService, service *core.Service) bool {
	if oldService.Spec.LoadBalancerClass == nil && service.Spec.LoadBalancerClass == nil {
		return true
	}