// UpdateVirtualServer updates an already existing virtual server.  If the virtual server does not exist, return error.
	UpdateVirtualServer(*VirtualServer) error
	// DeleteVirtualServer deletes the specified virtual server.  If the virtual server does not exist, return error.
	DeleteVirtualServer(*VirtualServer) error
	// Given a partial virtual server, GetVirtualServer will return the specified virtual server information in the system.

	}
	key := toServiceKey(serv)
	f.Services[key] = serv
	return nil
}

// DeleteVirtualServer is a fake implementation, it simply deletes the VirtualServer from the cache store.
func (f *FakeIPVS) DeleteVirtualServer(serv *utilipvs.VirtualServer) error {
	if serv == nil {
		return fmt.Errorf("failed to delete service: service can't be nil")
	}
	key := toServiceKey(serv)

	if err != nil {
		t.Errorf("Fail to list virtual servers, error: %v", err)
	}
	if len(list) != 3 {
		t.Errorf("Expect 2 virtual servers, got: %d", len(list))
	}
	// Delete a virtual server
	err = fake.DeleteVirtualServer(vs1)
	if err != nil {
		t.Errorf("Fail to delete virtual server: %v, error: %v", vs1, err)
	}
	// Check the deleted virtual server no longer exists
	got, _ := fake.GetVirtualServer(vs1)
	if got != nil {

	}
	runner.mu.Lock()
	defer runner.mu.Unlock()
	return runner.ipvsHandle.UpdateService(svc)
}

// DeleteVirtualServer is part of ipvs.Interface.
func (runner *runner) DeleteVirtualServer(vs *VirtualServer) error {
	svc, err := toIPVSService(vs)
	if err != nil {
		return fmt.Errorf("could not convert local virtual server to IPVS service: %w", err)
	}
	runner.mu.Lock()

		logger.Info("Dummy VS not created", "scheduler", scheduler)
		return fmt.Errorf("Ipvs not supported") // This is a BUG work-around
	}
	logger.V(5).Info("Dummy VS created", "vs", vs)

	if err := ipvs.DeleteVirtualServer(&vs); err != nil {
		logger.Error(err, "Could not delete dummy VS")
		return err
	}

	return nil
}

// CleanupIptablesLeftovers removes all iptables rules and chains created by the Proxier

		return fmt.Errorf("oops")
	}
	f.vsCreated = true
	return nil
}
func (f *fakeIpvs) UpdateVirtualServer(*utilipvs.VirtualServer) error {
	return nil
}
func (f *fakeIpvs) DeleteVirtualServer(*utilipvs.VirtualServer) error {
	if f.ipvsErr == "DeleteVirtualServer" {
		return fmt.Errorf("oops")
	}
	return nil
}
func (f *fakeIpvs) GetVirtualServer(*utilipvs.VirtualServer) (*utilipvs.VirtualServer, error) {
	return nil, nil
}