// if no workload handler registered, skip building WorkloadInstance
	if len(pc.c.handlers.GetWorkloadHandlers()) == 0 {
		return
	}
	// fire instance handles for workload
	ep := pc.c.NewEndpointBuilder(pod).buildIstioEndpoint(pod.Status.PodIP, 0, "", model.AlwaysDiscoverable, model.Healthy)
	workloadInstance := &model.WorkloadInstance{
		Name:      pod.Name,
		Namespace: pod.Namespace,
		Kind:      model.PodKind,
		Endpoint:  ep,

				var portNum int32
				if port.Port != nil {
					portNum = *port.Port
				}
				var portName string
				if port.Name != nil {
					portName = *port.Name
				}

				istioEndpoint := builder.buildIstioEndpoint(a, portNum, portName, discoverabilityPolicy, healthStatus)
				endpoints = append(endpoints, istioEndpoint)
			}
		}
	}
	esc.endpointCache.Update(hostName, slice.Name, endpoints)
}