clusterCfg: kubeadmapi.ClusterConfiguration{},
			expected: kubeletConfig{
				config: kubeletconfig.KubeletConfiguration{
					FeatureGates:  map[string]bool{},
					StaticPodPath: kubeadmapiv1.DefaultManifestsDir,
					ClusterDNS:    []string{kubeadmapiv1.DefaultClusterDNSIP},
					Authentication: kubeletconfig.KubeletAuthentication{
						X509: kubeletconfig.KubeletX509Authentication{
							ClientCAFile: constants.CACertName,
						},

	}

	clusterDNS := ""
	dnsIP, err := constants.GetDNSIP(cfg.Networking.ServiceSubnet)
	if err != nil {
		clusterDNS = kubeadmapiv1.DefaultClusterDNSIP
	} else {
		clusterDNS = dnsIP.String()
	}

	if kc.config.ClusterDNS == nil {
		kc.config.ClusterDNS = []string{clusterDNS}
	} else if len(kc.config.ClusterDNS) != 1 || kc.config.ClusterDNS[0] != clusterDNS {

port: 8080
readOnlyPort: 10255
systemReserved:
  memory: 2Gi
clusterDNS:
  - 192.168.1.1
  - 192.168.1.5
  - 192.168.1.8
`,
			overwrittenConfigFields: map[string]interface{}{
				"Port":         int32(8080),
				"ReadOnlyPort": int32(10255),
				"SystemReserved": map[string]string{
					"memory": "2Gi",
				},
				"ClusterDNS": []string{"192.168.1.1", "192.168.1.5", "192.168.1.8"},
			},

func NewConfigurer(recorder record.EventRecorder, nodeRef *v1.ObjectReference, nodeIPs []net.IP, clusterDNS []net.IP, clusterDomain, resolverConfig string) *Configurer {
	return &Configurer{
		recorder:         recorder,
		getHostDNSConfig: getHostDNSConfig,
		nodeRef:          nodeRef,
		nodeIPs:          nodeIPs,
		clusterDNS:       clusterDNS,
		ClusterDomain:    clusterDomain,
		ResolverConfig:   resolverConfig,
	}
}

		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	out.Authentication = in.Authentication
	out.Authorization = in.Authorization
	if in.ClusterDNS != nil {
		in, out := &in.ClusterDNS, &out.ClusterDNS
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	out.StreamingConnectionIdleTimeout = in.StreamingConnectionIdleTimeout
	out.NodeStatusUpdateFrequency = in.NodeStatusUpdateFrequency

				HealthzPort:                      utilpointer.Int32(0),
				HealthzBindAddress:               "",
				OOMScoreAdj:                      utilpointer.Int32(0),
				ClusterDomain:                    "",
				ClusterDNS:                       []string{},
				StreamingConnectionIdleTimeout:   zeroDuration,
				NodeStatusUpdateFrequency:        zeroDuration,
				NodeStatusReportFrequency:        zeroDuration,

	if err := v1.Convert_Pointer_int32_To_int32(&in.OOMScoreAdj, &out.OOMScoreAdj, s); err != nil {
		return err
	}
	out.ClusterDomain = in.ClusterDomain
	out.ClusterDNS = *(*[]string)(unsafe.Pointer(&in.ClusterDNS))
	out.StreamingConnectionIdleTimeout = in.StreamingConnectionIdleTimeout
	out.NodeStatusUpdateFrequency = in.NodeStatusUpdateFrequency
	out.NodeStatusReportFrequency = in.NodeStatusReportFrequency

	c.SyncFrequency.Duration = 10 * time.Second
	c.EvictionPressureTransitionPeriod.Duration = 5 * time.Minute
	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 = ""

		"TopologyManagerPolicy",
		"TopologyManagerScope",
		"TopologyManagerPolicyOptions[*]",
		"QOSReserved[*]",
		"CgroupDriver",
		"CgroupRoot",
		"CgroupsPerQOS",
		"ClusterDNS[*]",
		"ClusterDomain",
		"ConfigMapAndSecretChangeDetectionStrategy",
		"ContainerLogMaxFiles",
		"ContainerLogMaxSize",
		"ContainerLogMaxWorkers",
		"ContainerLogMonitorInterval",
		"ContentType",

			expectedError: true,
		},
	}

	for _, tc := range testCases {
		t.Run(tc.desc, func(t *testing.T) {
			if tc.hasClusterDNS {
				configurer.clusterDNS = testClusterDNS
			} else {
				configurer.clusterDNS = nil
			}
			pod.Spec.DNSPolicy = tc.dnsPolicy
			pod.Spec.HostNetwork = tc.hostNetwork

			resType, err := getPodDNSType(pod)
			if tc.expectedError {
				if err == nil {