registries := []serviceregistry.Simple{
		{
			ProviderID:          "registry1",
			ClusterID:           "cluster1",
			DiscoveryController: memory.NewServiceDiscovery(),
		},
		{
			ProviderID:          "registry2",
			ClusterID:           "cluster2",
			DiscoveryController: memory.NewServiceDiscovery(),
		},
		{
			ProviderID:          provider.Kubernetes,
			ClusterID:           "cluster3",

	}
}

func (c *Controller) addRegistry(registry serviceregistry.Instance, stop <-chan struct{}) {
	added := false
	if registry.Provider() == provider.Kubernetes {
		for i, r := range c.registries {
			if r.Provider() != provider.Kubernetes {
				// insert the registry in the position of the first non kubernetes registry

        "fieldsV1": {},
        "subresource": "subresourceValue"
      }
    ]
  },
  "spec": {
    "podCIDR": "podCIDRValue",
    "podCIDRs": [
      "podCIDRsValue"
    ],
    "providerID": "providerIDValue",
    "unschedulable": true,
    "taints": [
      {
        "key": "keyValue",
        "value": "valueValue",
        "effect": "effectValue",
        "timeAdded": "2004-01-01T01:01:01Z"

      name: nameValue
      namespace: namespaceValue
      resourceVersion: resourceVersionValue
      uid: uidValue
  externalID: externalIDValue
  podCIDR: podCIDRValue
  podCIDRs:
  - podCIDRsValue
  providerID: providerIDValue
  taints:
  - effect: effectValue
    key: keyValue
    timeAdded: "2004-01-01T01:01:01Z"
    value: valueValue
  unschedulable: true
status:
  addresses:
  - address: addressValue

	for k, v := range kl.nodeLabels {
		if cv, found := node.ObjectMeta.Labels[k]; found {
			klog.InfoS("the node label will overwrite default setting", "labelKey", k, "labelValue", v, "default", cv)
		}
		node.ObjectMeta.Labels[k] = v
	}

	if kl.providerID != "" {
		node.Spec.ProviderID = kl.providerID
	}

	if kl.cloud != nil {

	c.MaxPods = int32(opt.MaxPods)
	c.PodsPerCore = int32(opt.PodsPerCore)
	c.ClusterDNS = []string{}
	c.ImageGCHighThresholdPercent = 90
	c.ImageGCLowThresholdPercent = 80
	c.ProviderID = fmt.Sprintf("kubemark://%v", opt.NodeName)
	c.VolumeStatsAggPeriod.Duration = time.Minute
	c.CgroupRoot = ""
	c.CPUCFSQuota = true
	c.EnableControllerAttachDetach = false
	c.EnableDebuggingHandlers = true

		"NodeStatusUpdateFrequency.Duration",
		"NodeStatusReportFrequency.Duration",
		"OOMScoreAdj",
		"PodCIDR",
		"PodPidsLimit",
		"PodsPerCore",
		"Port",
		"ProtectKernelDefaults",
		"ProviderID",
		"ReadOnlyPort",
		"RegisterNode",
		"RegistryBurst",
		"RegistryPullQPS",
		"ReservedMemory",
		"ReservedSystemCPUs",
		"RegisterWithTaints",
		"RuntimeRequestTimeout.Duration",
		"RunOnce",

	for _, instance := range opts.Instances {
		msd.AddInstance(instance)
	}
	msd.AddGateways(opts.Gateways...)
	msd.ClusterID = cluster2.ID(provider.Mock)
	memserviceRegistry := serviceregistry.Simple{
		ClusterID:           cluster2.ID(provider.Mock),
		ProviderID:          provider.Mock,
		DiscoveryController: msd,
	}
	serviceDiscovery.AddRegistry(memserviceRegistry)
	for _, reg := range opts.ServiceRegistries {

- The initialization of nodes using external cloud providers now waits for the providerID value to be available before untainting it. This ensures that nodes are not declared Ready without necessary information such as the providerID and zone labels, which are required for integrations like load balancers to function correctly. Cloud providers that do not implement the GetInstanceProviderID method will not require the providerID to be set and will not fail to initialize the node for backward...

	fs.StringVar(&f.CloudProvider, "cloud-provider", f.CloudProvider, "The provider for cloud services. Set to empty string for running with no cloud provider. Set to 'external' for running with an external cloud provider. If set, the cloud provider determines the name of the node (consult cloud provider documentation to determine if and how the hostname is used).")