}
	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 {

}

func (e *Environment) AllClusters() cluster.Clusters {
	out := make([]cluster.Cluster, 0, len(e.clusters))
	out = append(out, e.clusters...)
	return out
}

func (e *Environment) Clusters() cluster.Clusters {
	return e.AllClusters().MeshClusters()
}

// ClustersByNetwork returns an inverse mapping of the network topolgoy to a slice of clusters in a given network.

type configFactory struct {
	ctx      resource.Context
	clusters []cluster.Cluster
	prefix   string
}

func newConfigFactory(ctx resource.Context, clusters cluster.Clusters) config.Factory {
	if len(clusters) == 0 {
		clusters = ctx.Clusters()
	}
	return &configFactory{
		ctx:      ctx,
		clusters: clusters,
	}
}

// GlobalYAMLWrites records how many YAMLs we have applied from all sources.

	constructor func(cluster *Cluster) T
	clusters    map[cluster.ID]T
}

func (m *Component[T]) ForCluster(clusterID cluster.ID) *T {
	m.mu.RLock()
	defer m.mu.RUnlock()
	t, f := m.clusters[clusterID]
	if !f {
		return nil
	}
	return &t
}

func (m *Component[T]) All() []T {
	m.mu.RLock()
	defer m.mu.RUnlock()
	return maps.Values(m.clusters)
}

Jacek Ewertowski <******@****.***> 1704944248 +0100

	svcs map[host.Name]*model.Service,
) []*cluster.Cluster {
	clusters := make([]*cluster.Cluster, 0)
	// Creates "main_internal" cluster to route to the main internal listener.
	// Creates "encap" cluster to route to the encap listener.
	clusters = append(clusters, MainInternalCluster, EncapCluster)
	// Creates per-VIP load balancing upstreams.
	clusters = append(clusters, cb.buildWaypointInboundVIP(proxy, svcs)...)

	}
	return out
}

// Clusters returns a list of cluster names that the instances are deployed in
func (i Instances) Clusters() cluster.Clusters {
	clusters := map[string]cluster.Cluster{}
	for _, instance := range i {
		clusters[instance.Config().Cluster.Name()] = instance.Config().Cluster
	}
	out := make(cluster.Clusters, 0, len(clusters))
	for _, c := range clusters {
		out = append(out, c)
	}
	return out
}

					output, _, err := istioCtl.Invoke(args)
					if err != nil {
						return err
					}
					return expectSubstrings(output, "Clusters Match", "Listeners Match", "Routes Match")
				})

				// Test gRPC-based tapped XDS using istioctl.
				retry.UntilSuccessOrFail(t, func() error {
					pf, err := t.Clusters()[0].NewPortForwarder(podName, namespace, "localhost", 0, 15004)
					if err != nil {

	return false
}

func (f FakeEnvironment) EnvironmentName() string {
	if len(f.Name) == 0 {
		return "fake"
	}
	return f.Name
}

func (f FakeEnvironment) AllClusters() cluster.Clusters {
	res := cluster.Clusters{}
	allClusters := make(cluster.Map)

	for i := 0; i < f.NumClusters; i++ {
		topo := cluster.NewTopology(cluster.Config{
			Name:               fmt.Sprintf("cluster-%d", i),

			cfg := t.ConfigIstio().YAML(i.Settings().SystemNamespace, exposeServices)
			for _, network := range t.Clusters().Networks() {
				cfg.
					YAML(i.Settings().SystemNamespace, fmt.Sprintf(gwTmpl, network, network, gatewayAddresses[network].ip))
			}
			cfg.ApplyOrFail(t)

			// create a unique SE per cluster
			for _, c := range t.Clusters().Configs() {