if len(key.Addresses) == 0 {
		return nil
	}
	workloads := a.workloads.ByOwningWaypoint.Lookup(networkAddress{
		network: key.Network,
		ip:      key.Addresses[0],
	})
	workloads = model.SortWorkloadsByCreationTime(workloads)
	return workloads
}

func (a *index) AdditionalPodSubscriptions(
	proxy *model.Proxy,
	allAddresses sets.String,
	currentSubs sets.String,
) sets.String {

		switch addr := a.Type.(type) {
		case *workloadapi.Address_Workload:
			return &WorkloadInfo{Workload: addr.Workload}
		default:
			return nil
		}
	})
}

func SortWorkloadsByCreationTime(workloads []WorkloadInfo) []WorkloadInfo {
	sort.SliceStable(workloads, func(i, j int) bool {
		if workloads[i].CreationTime.Equal(workloads[j].CreationTime) {
			return workloads[i].Uid < workloads[j].Uid
		}