instancesByPortNum  map[string][]*model.ServiceInstance
	instancesByPortName map[string][]*model.ServiceInstance

	// Used by GetProxyServiceInstance, used to configure inbound (list of services per IP)
	// We generally expect a single instance - conflicting services need to be reported.
	ip2instance                map[string][]*model.ServiceInstance
	WantGetProxyServiceTargets []model.ServiceTarget

	curr config.Config,
	services []*model.Service,
) (map[configKey][]*model.ServiceInstance, []*model.ServiceInstance) {
	currentServiceEntry := curr.Spec.(*networking.ServiceEntry)
	var serviceInstances []*model.ServiceInstance
	serviceInstancesByConfig := map[configKey][]*model.ServiceInstance{}
	// for service entry with labels
	if currentServiceEntry.WorkloadSelector != nil {

				for _, serviceInstance := range tt.out {
					serviceInstance.Endpoint.Locality = model.Locality{
						Label:     tt.wle.Locality,
						ClusterID: tt.clusterID,
					}
					serviceInstance.Endpoint.Network = network.ID(tt.wle.Network)
					serviceInstance.Endpoint.Labels = labelutil.AugmentLabels(serviceInstance.Endpoint.Labels, tt.clusterID, tt.wle.Locality, "", network.ID(tt.wle.Network))

func (s *Controller) convertWorkloadEntryToServiceInstances(wle *networking.WorkloadEntry, services []*model.Service,
	se *networking.ServiceEntry, configKey *configKey, clusterID cluster.ID,
) []*model.ServiceInstance {
	out := make([]*model.ServiceInstance, 0, len(services)*len(se.Ports))
	for _, service := range services {
		for _, port := range se.Ports {
			out = append(out, s.convertEndpoint(service, port, wle, configKey, clusterID))
		}
	}

			TargetPort:  e.Endpoint.EndpointPort,
		},
	}
}

// DeepCopy creates a copy of ServiceInstance.
func (instance *ServiceInstance) DeepCopy() *ServiceInstance {
	return &ServiceInstance{
		Service:  instance.Service.DeepCopy(),
		Endpoint: instance.Endpoint.DeepCopy(),
		ServicePort: &Port{
			Name:     instance.ServicePort.Name,
			Port:     instance.ServicePort.Port,
			Protocol: instance.ServicePort.Protocol,
		},

		Ports:    ports,
		Hostname: host.Name("test1"),
	}
	s.MemRegistry.AddService(svc)
	if _, err := ads.Wait(time.Second*10, watchAll...); err != nil {
		t.Fatal(err)
	}
	i := &model.ServiceInstance{
		Service:     svc,
		ServicePort: svc.Ports[0],
		Endpoint: &model.IstioEndpoint{
			Address:        "1.2.3.4",
			ServiceAccount: "spiffe://td1/ns/def/sa/def",
			HealthStatus:   model.UnHealthy,
		},

		buildServiceWithPort("test2.com", 81, protocol.Unsupported, tnow),
		buildServiceWithPort("test3.com", 82, protocol.TCP, tnow),
	}
	instances := make([]*model.ServiceInstance, 0, len(services))
	for _, s := range services {
		instances = append(instances, &model.ServiceInstance{
			Service: s,
			Endpoint: &model.IstioEndpoint{
				EndpointPort: uint32(s.Ports[0].Port),
				Address:      "1.1.1.1",
			},

		}
		for _, si := range instances {
			if si.Service == nil {
				return fmt.Errorf("proxy ServiceInstance has nil service")
			}
			if _, found := expectedHosts[si.Service.Hostname]; !found {
				return fmt.Errorf("found proxy ServiceInstance for unexpected host: %s", si.Service.Hostname)
			}
			delete(expectedHosts, si.Service.Hostname)
		}

		if len(expectedHosts) > 0 {

			// Setup a few preconfigured services
			instances := []*model.ServiceInstance{}
			for _, svc := range services {
				instances = append(instances, &model.ServiceInstance{
					Service:     svc,
					ServicePort: ports[0],
					Endpoint:    &model.IstioEndpoint{EndpointPort: 8080},
				}, &model.ServiceInstance{
					Service:     svc,
					ServicePort: ports[1],
					Endpoint:    &model.IstioEndpoint{},

		return ""
	}

	return region + "/" + zone + "/" + subzone // Format: "%s/%s/%s"
}

func (c *Controller) serviceInstancesFromWorkloadInstances(svc *model.Service, reqSvcPort int) []*model.ServiceInstance {
	// Run through all the workload instances, select ones that match the service labels
	// only if this is a kubernetes internal service and of ClientSideLB (eds) type