}

// NewClusterBuilder builds an instance of ClusterBuilder.
func NewClusterBuilder(proxy *model.Proxy, req *model.PushRequest, cache model.XdsCache) *ClusterBuilder {
	cb := &ClusterBuilder{
		serviceTargets:     proxy.ServiceTargets,
		proxyID:            proxy.ID,
		proxyType:          proxy.Type,
		proxyVersion:       proxy.Metadata.IstioVersion,
		sidecarScope:       proxy.SidecarScope,

	clusters := make([]*cluster.Cluster, 0)
	resources := model.Resources{}
	envoyFilterPatches := req.Push.EnvoyFilters(proxy)
	cb := NewClusterBuilder(proxy, req, configgen.Cache)
	instances := proxy.ServiceTargets
	cacheStats := cacheStats{}
	switch proxy.Type {
	case model.SidecarProxy:
		// Setup outbound clusters
		outboundPatcher := clusterPatcher{efw: envoyFilterPatches, pctx: networking.EnvoyFilter_SIDECAR_OUTBOUND}

	ingressPortListSet := sets.New[int]()
	sidecarScope := lb.node.SidecarScope
	if sidecarScope.HasIngressListener() {
		ingressPortListSet = getSidecarIngressPortList(lb.node)
	}
	for _, i := range lb.node.ServiceTargets {
		bindToPort := getBindToPort(networking.CaptureMode_DEFAULT, lb.node)
		// Skip ports we cannot bind to
		if !lb.node.CanBindToPort(bindToPort, i.Port.TargetPort) {