}
	return out
}

func (ws Workloads) Clusters() cluster.Clusters {
	clusters := make(map[string]cluster.Cluster)
	for _, w := range ws {
		if c := w.Cluster(); c != nil {
			clusters[c.Name()] = c
		}
	}
	out := make(cluster.Clusters, 0, len(clusters))
	for _, c := range clusters {
		out = append(out, c)
	}

	// Sort the clusters by name.
	sort.SliceStable(out, func(i, j int) bool {

	clusters = append(clusters, MainInternalCluster, EncapCluster)
	// Creates per-VIP load balancing upstreams.
	clusters = append(clusters, cb.buildWaypointInboundVIP(proxy, svcs)...)
	// Upstream of the "encap" listener.
	clusters = append(clusters, cb.buildWaypointConnectOriginate(proxy, push))

	for _, c := range clusters {
		if c.TransportSocket != nil && c.TransportSocketMatches != nil {

	}
	b.templates = templates

	return b.WithClusters(clusters...)
}

type builder struct {
	ctx resource.Context

	// clusters contains the current set of clusters that subsequent With calls will be applied to,
	// if the Config passed to With does not explicitly choose a cluster.
	clusters cluster.Clusters

					Status:            workloadapi.WorkloadStatus_HEALTHY,
					ClusterId:         testC,
					Services: map[string]*workloadapi.PortList{
						"ns/a.example.com": {
							Ports: []*workloadapi.Port{{
								ServicePort: 80,
								TargetPort:  80,
							}},
						},
					},
				},
				{
					Uid:               "cluster0/networking.istio.io/ServiceEntry/ns/name/b.example.com",

	// NodeCIDRMaskSizeIPv4 is the mask size for IPv4 node cidr in dual-stack cluster.
	// This can be used only with dual stack clusters and is incompatible with single stack clusters.
	NodeCIDRMaskSizeIPv4 int32
	// NodeCIDRMaskSizeIPv6 is the mask size for IPv6 node cidr in dual-stack cluster.
	// This can be used only with dual stack clusters and is incompatible with single stack clusters.
	NodeCIDRMaskSizeIPv6 int32

	log.Infof("Deleting cluster_id=%v configured by secret=%v", cluster.ID, secretKey)
	cluster.Stop()
	c.handleDelete(cluster.ID)
	c.cs.Delete(secretKey, cluster.ID)

	log.Infof("Number of remote clusters: %d", c.cs.Len())
}

func (c *Controller) handleAdd(cluster *Cluster) []ComponentConstraint {
	syncers := make([]ComponentConstraint, 0, len(c.handlers))
	for _, handler := range c.handlers {

	}
	return nil
}

func getTargetClusterListForCluster(targetClusters []cluster.Cluster, c cluster.Cluster) []cluster.Cluster {
	var outClusters []cluster.Cluster
	scopes.Framework.Infof("Secret from cluster: %s will be placed in following clusters", c.Name())
	for _, cc := range targetClusters {
		// if cc is an external cluster, config cluster's secret should have already been

	// controlPlaneTopology maps each cluster to the cluster that runs its control plane. For replicated control
	// plane cases (where each cluster has its own control plane), the cluster will map to itself (e.g. 0->0).
	controlPlaneTopology clusterTopology

	// networkTopology is used for the initial assignment of networks to each cluster.
	// The source of truth clusters' networks is the Cluster instances themselves, rather than this field.

	subsetClusters := b.applyDestinationRule(defaultCluster)
	out := make([]*cluster.Cluster, 0, 1+len(subsetClusters))
	if defaultCluster != nil {
		out = append(out, defaultCluster)
	}
	return append(out, subsetClusters...)
}

// edsCluster creates a simple cluster to read endpoints from ads/eds.
func edsCluster(name string) *cluster.Cluster {
	return &cluster.Cluster{
		Name:                 name,

			}
			gatewayAddresses := map[string]gwAddr{}
			for _, cluster := range t.Clusters() {
				if _, ok := gatewayAddresses[cluster.NetworkName()]; ok {
					continue
				}
				ips, ports := i.EastWestGatewayFor(cluster).AddressesForPort(15443)
				if ips != nil {
					gatewayAddresses[cluster.NetworkName()] = gwAddr{ips[0], ports[0]}
				}
			}
			if len(t.Clusters().Networks()) != len(gatewayAddresses) {