You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: services.go
    path of file: ./repos/istio/pilot/pkg/serviceregistry/kube/controller/ambient
    
    the code of the file until where you have to start completion: // Copyright Istio Authors
//
// Licensed under the Apache License, Versi
    
func (a *index) constructService(svc *v1.Service) *workloadapi.Service {
	ports := make([]*workloadapi.Port, 0, len(svc.Spec.Ports))
	for _, p := range svc.Spec.Ports {
		ports = append(ports, &workloadapi.Port{
			ServicePort: uint32(p.Port),
			TargetPort:  uint32(p.TargetPort.IntVal),
		})
	}

	addresses, err := slices.MapErr(getVIPs(svc), a.toNetworkAddress)
	if err != nil {
		log.Warnf("fail to parse service %v: %v", config.NamespacedName(svc), err)
		return nil
	}
	// TODO this is only checking one controller - we may be missing service vips for instances in another cluster
	return &workloadapi.Service{
		Name:      svc.Name,
		Namespace: svc.Namespace,
		Hostname:  string(kube.ServiceHostname(svc.Name, svc.Namespace, a.DomainSuffix)),
		Addresses: addresses,
		Ports:     ports,
	}
}