// InitializeTLS checks for a configured TLSCertFile and TLSPrivateKeyFile: if unspecified a new self-signed
// certificate and key file are generated. Returns a configured server.TLSOptions object.
func InitializeTLS(kc *componentconfig.KubeletConfiguration) (*server.TLSOptions, error) {
	if kc.TLSCertFile == "" && kc.TLSPrivateKeyFile == "" {
		kc.TLSCertFile = path.Join(kc.CertDirectory, "kubelet.crt")
		kc.TLSPrivateKeyFile = path.Join(kc.CertDirectory, "kubelet.key")
		if !crypto.FoundCertOrKey(kc.TLSCertFile, kc.TLSPrivateKeyFile) {
			if err := crypto.GenerateSelfSignedCert(nodeutil.GetHostname(kc.HostnameOverride), kc.TLSCertFile, kc.TLSPrivateKeyFile, nil, nil); err != nil {
				return nil, fmt.Errorf("unable to generate self signed cert: %v", err)
			}
			glog.V(4).Infof("Using self-signed cert (%s, %s)", kc.TLSCertFile, kc.TLSPrivateKeyFile)
		}
	}
	tlsOptions := &server.TLSOptions{
		Config: &tls.Config{
			// Can't use SSLv3 because of POODLE and BEAST
			// Can't use TLSv1.0 because of POODLE and BEAST using CBC cipher
			// Can't use TLSv1.1 because of RC4 cipher usage
			MinVersion: tls.VersionTLS12,
			// Populate PeerCertificates in requests, but don't yet reject connections without certificates.
			ClientAuth: tls.RequestClientCert,
		},
		CertFile: kc.TLSCertFile,
		KeyFile:  kc.TLSPrivateKeyFile,
	}
	return tlsOptions, nil
}
Esempio n. 2
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// InitializeTLS checks for a configured TLSCertFile and TLSPrivateKeyFile: if unspecified a new self-signed
// certificate and key file are generated. Returns a configured server.TLSOptions object.
func InitializeTLS(kc *componentconfig.KubeletConfiguration) (*server.TLSOptions, error) {
	if kc.TLSCertFile == "" && kc.TLSPrivateKeyFile == "" {
		kc.TLSCertFile = path.Join(kc.CertDirectory, "kubelet.crt")
		kc.TLSPrivateKeyFile = path.Join(kc.CertDirectory, "kubelet.key")
		if !certutil.CanReadCertOrKey(kc.TLSCertFile, kc.TLSPrivateKeyFile) {
			if err := certutil.GenerateSelfSignedCert(nodeutil.GetHostname(kc.HostnameOverride), kc.TLSCertFile, kc.TLSPrivateKeyFile, nil, nil); err != nil {
				return nil, fmt.Errorf("unable to generate self signed cert: %v", err)
			}
			glog.V(4).Infof("Using self-signed cert (%s, %s)", kc.TLSCertFile, kc.TLSPrivateKeyFile)
		}
	}
	tlsOptions := &server.TLSOptions{
		Config: &tls.Config{
			// Can't use SSLv3 because of POODLE and BEAST
			// Can't use TLSv1.0 because of POODLE and BEAST using CBC cipher
			// Can't use TLSv1.1 because of RC4 cipher usage
			MinVersion: tls.VersionTLS12,
		},
		CertFile: kc.TLSCertFile,
		KeyFile:  kc.TLSPrivateKeyFile,
	}

	if len(kc.Authentication.X509.ClientCAFile) > 0 {
		clientCAs, err := cert.NewPool(kc.Authentication.X509.ClientCAFile)
		if err != nil {
			return nil, fmt.Errorf("unable to load client CA file %s: %v", kc.Authentication.X509.ClientCAFile, err)
		}
		// Specify allowed CAs for client certificates
		tlsOptions.Config.ClientCAs = clientCAs
		// Populate PeerCertificates in requests, but don't reject connections without verified certificates
		tlsOptions.Config.ClientAuth = tls.RequestClientCert
	}

	return tlsOptions, nil
}
Esempio n. 3
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func autoConvert_v1alpha1_KubeletConfiguration_To_componentconfig_KubeletConfiguration(in *KubeletConfiguration, out *componentconfig.KubeletConfiguration, s conversion.Scope) error {
	out.PodManifestPath = in.PodManifestPath
	out.SyncFrequency = in.SyncFrequency
	out.FileCheckFrequency = in.FileCheckFrequency
	out.HTTPCheckFrequency = in.HTTPCheckFrequency
	out.ManifestURL = in.ManifestURL
	out.ManifestURLHeader = in.ManifestURLHeader
	if err := api.Convert_Pointer_bool_To_bool(&in.EnableServer, &out.EnableServer, s); err != nil {
		return err
	}
	out.Address = in.Address
	out.Port = in.Port
	out.ReadOnlyPort = in.ReadOnlyPort
	out.TLSCertFile = in.TLSCertFile
	out.TLSPrivateKeyFile = in.TLSPrivateKeyFile
	out.CertDirectory = in.CertDirectory
	if err := Convert_v1alpha1_KubeletAuthentication_To_componentconfig_KubeletAuthentication(&in.Authentication, &out.Authentication, s); err != nil {
		return err
	}
	if err := Convert_v1alpha1_KubeletAuthorization_To_componentconfig_KubeletAuthorization(&in.Authorization, &out.Authorization, s); err != nil {
		return err
	}
	out.HostnameOverride = in.HostnameOverride
	out.PodInfraContainerImage = in.PodInfraContainerImage
	out.DockerEndpoint = in.DockerEndpoint
	out.RootDirectory = in.RootDirectory
	out.SeccompProfileRoot = in.SeccompProfileRoot
	if err := api.Convert_Pointer_bool_To_bool(&in.AllowPrivileged, &out.AllowPrivileged, s); err != nil {
		return err
	}
	out.HostNetworkSources = *(*[]string)(unsafe.Pointer(&in.HostNetworkSources))
	out.HostPIDSources = *(*[]string)(unsafe.Pointer(&in.HostPIDSources))
	out.HostIPCSources = *(*[]string)(unsafe.Pointer(&in.HostIPCSources))
	if err := api.Convert_Pointer_int32_To_int32(&in.RegistryPullQPS, &out.RegistryPullQPS, s); err != nil {
		return err
	}
	out.RegistryBurst = in.RegistryBurst
	if err := api.Convert_Pointer_int32_To_int32(&in.EventRecordQPS, &out.EventRecordQPS, s); err != nil {
		return err
	}
	out.EventBurst = in.EventBurst
	if err := api.Convert_Pointer_bool_To_bool(&in.EnableDebuggingHandlers, &out.EnableDebuggingHandlers, s); err != nil {
		return err
	}
	out.MinimumGCAge = in.MinimumGCAge
	out.MaxPerPodContainerCount = in.MaxPerPodContainerCount
	if err := api.Convert_Pointer_int32_To_int32(&in.MaxContainerCount, &out.MaxContainerCount, s); err != nil {
		return err
	}
	out.CAdvisorPort = in.CAdvisorPort
	out.HealthzPort = in.HealthzPort
	out.HealthzBindAddress = in.HealthzBindAddress
	if err := api.Convert_Pointer_int32_To_int32(&in.OOMScoreAdj, &out.OOMScoreAdj, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_bool_To_bool(&in.RegisterNode, &out.RegisterNode, s); err != nil {
		return err
	}
	out.ClusterDomain = in.ClusterDomain
	out.MasterServiceNamespace = in.MasterServiceNamespace
	out.ClusterDNS = in.ClusterDNS
	out.StreamingConnectionIdleTimeout = in.StreamingConnectionIdleTimeout
	out.NodeStatusUpdateFrequency = in.NodeStatusUpdateFrequency
	out.ImageMinimumGCAge = in.ImageMinimumGCAge
	if err := api.Convert_Pointer_int32_To_int32(&in.ImageGCHighThresholdPercent, &out.ImageGCHighThresholdPercent, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_int32_To_int32(&in.ImageGCLowThresholdPercent, &out.ImageGCLowThresholdPercent, s); err != nil {
		return err
	}
	out.LowDiskSpaceThresholdMB = in.LowDiskSpaceThresholdMB
	out.VolumeStatsAggPeriod = in.VolumeStatsAggPeriod
	out.NetworkPluginName = in.NetworkPluginName
	out.NetworkPluginDir = in.NetworkPluginDir
	out.CNIConfDir = in.CNIConfDir
	out.CNIBinDir = in.CNIBinDir
	out.NetworkPluginMTU = in.NetworkPluginMTU
	out.VolumePluginDir = in.VolumePluginDir
	out.CloudProvider = in.CloudProvider
	out.CloudConfigFile = in.CloudConfigFile
	out.KubeletCgroups = in.KubeletCgroups
	out.RuntimeCgroups = in.RuntimeCgroups
	out.SystemCgroups = in.SystemCgroups
	out.CgroupRoot = in.CgroupRoot
	if err := api.Convert_Pointer_bool_To_bool(&in.ExperimentalCgroupsPerQOS, &out.ExperimentalCgroupsPerQOS, s); err != nil {
		return err
	}
	out.CgroupDriver = in.CgroupDriver
	out.ContainerRuntime = in.ContainerRuntime
	out.RemoteRuntimeEndpoint = in.RemoteRuntimeEndpoint
	out.RemoteImageEndpoint = in.RemoteImageEndpoint
	out.RuntimeRequestTimeout = in.RuntimeRequestTimeout
	out.RktPath = in.RktPath
	out.ExperimentalMounterPath = in.ExperimentalMounterPath
	out.RktAPIEndpoint = in.RktAPIEndpoint
	out.RktStage1Image = in.RktStage1Image
	if err := api.Convert_Pointer_string_To_string(&in.LockFilePath, &out.LockFilePath, s); err != nil {
		return err
	}
	out.ExitOnLockContention = in.ExitOnLockContention
	out.HairpinMode = in.HairpinMode
	out.BabysitDaemons = in.BabysitDaemons
	out.MaxPods = in.MaxPods
	out.NvidiaGPUs = in.NvidiaGPUs
	out.DockerExecHandlerName = in.DockerExecHandlerName
	out.PodCIDR = in.PodCIDR
	out.ResolverConfig = in.ResolverConfig
	if err := api.Convert_Pointer_bool_To_bool(&in.CPUCFSQuota, &out.CPUCFSQuota, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_bool_To_bool(&in.Containerized, &out.Containerized, s); err != nil {
		return err
	}
	out.MaxOpenFiles = in.MaxOpenFiles
	if err := api.Convert_Pointer_bool_To_bool(&in.ReconcileCIDR, &out.ReconcileCIDR, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_bool_To_bool(&in.RegisterSchedulable, &out.RegisterSchedulable, s); err != nil {
		return err
	}
	out.ContentType = in.ContentType
	if err := api.Convert_Pointer_int32_To_int32(&in.KubeAPIQPS, &out.KubeAPIQPS, s); err != nil {
		return err
	}
	out.KubeAPIBurst = in.KubeAPIBurst
	if err := api.Convert_Pointer_bool_To_bool(&in.SerializeImagePulls, &out.SerializeImagePulls, s); err != nil {
		return err
	}
	out.OutOfDiskTransitionFrequency = in.OutOfDiskTransitionFrequency
	out.NodeIP = in.NodeIP
	out.NodeLabels = *(*map[string]string)(unsafe.Pointer(&in.NodeLabels))
	out.NonMasqueradeCIDR = in.NonMasqueradeCIDR
	out.EnableCustomMetrics = in.EnableCustomMetrics
	if err := api.Convert_Pointer_string_To_string(&in.EvictionHard, &out.EvictionHard, s); err != nil {
		return err
	}
	out.EvictionSoft = in.EvictionSoft
	out.EvictionSoftGracePeriod = in.EvictionSoftGracePeriod
	out.EvictionPressureTransitionPeriod = in.EvictionPressureTransitionPeriod
	out.EvictionMaxPodGracePeriod = in.EvictionMaxPodGracePeriod
	out.EvictionMinimumReclaim = in.EvictionMinimumReclaim
	out.PodsPerCore = in.PodsPerCore
	if err := api.Convert_Pointer_bool_To_bool(&in.EnableControllerAttachDetach, &out.EnableControllerAttachDetach, s); err != nil {
		return err
	}
	out.SystemReserved = *(*config.ConfigurationMap)(unsafe.Pointer(&in.SystemReserved))
	out.KubeReserved = *(*config.ConfigurationMap)(unsafe.Pointer(&in.KubeReserved))
	out.ProtectKernelDefaults = in.ProtectKernelDefaults
	if err := api.Convert_Pointer_bool_To_bool(&in.MakeIPTablesUtilChains, &out.MakeIPTablesUtilChains, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_int32_To_int32(&in.IPTablesMasqueradeBit, &out.IPTablesMasqueradeBit, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_int32_To_int32(&in.IPTablesDropBit, &out.IPTablesDropBit, s); err != nil {
		return err
	}
	out.AllowedUnsafeSysctls = *(*[]string)(unsafe.Pointer(&in.AllowedUnsafeSysctls))
	out.FeatureGates = in.FeatureGates
	out.EnableCRI = in.EnableCRI
	out.ExperimentalFailSwapOn = in.ExperimentalFailSwapOn
	out.ExperimentalCheckNodeCapabilitiesBeforeMount = in.ExperimentalCheckNodeCapabilitiesBeforeMount
	return nil
}
func autoConvert_v1alpha1_KubeletConfiguration_To_componentconfig_KubeletConfiguration(in *KubeletConfiguration, out *componentconfig.KubeletConfiguration, s conversion.Scope) error {
	SetDefaults_KubeletConfiguration(in)
	if err := api.Convert_unversioned_TypeMeta_To_unversioned_TypeMeta(&in.TypeMeta, &out.TypeMeta, s); err != nil {
		return err
	}
	out.PodManifestPath = in.PodManifestPath
	out.SyncFrequency = in.SyncFrequency
	out.FileCheckFrequency = in.FileCheckFrequency
	out.HTTPCheckFrequency = in.HTTPCheckFrequency
	out.ManifestURL = in.ManifestURL
	out.ManifestURLHeader = in.ManifestURLHeader
	if err := api.Convert_Pointer_bool_To_bool(&in.EnableServer, &out.EnableServer, s); err != nil {
		return err
	}
	out.Address = in.Address
	out.Port = in.Port
	out.ReadOnlyPort = in.ReadOnlyPort
	out.TLSCertFile = in.TLSCertFile
	out.TLSPrivateKeyFile = in.TLSPrivateKeyFile
	out.CertDirectory = in.CertDirectory
	out.HostnameOverride = in.HostnameOverride
	out.PodInfraContainerImage = in.PodInfraContainerImage
	out.DockerEndpoint = in.DockerEndpoint
	out.RootDirectory = in.RootDirectory
	out.SeccompProfileRoot = in.SeccompProfileRoot
	if err := api.Convert_Pointer_bool_To_bool(&in.AllowPrivileged, &out.AllowPrivileged, s); err != nil {
		return err
	}
	out.HostNetworkSources = in.HostNetworkSources
	out.HostPIDSources = in.HostPIDSources
	out.HostIPCSources = in.HostIPCSources
	if err := api.Convert_Pointer_int32_To_int32(&in.RegistryPullQPS, &out.RegistryPullQPS, s); err != nil {
		return err
	}
	out.RegistryBurst = in.RegistryBurst
	if err := api.Convert_Pointer_int32_To_int32(&in.EventRecordQPS, &out.EventRecordQPS, s); err != nil {
		return err
	}
	out.EventBurst = in.EventBurst
	if err := api.Convert_Pointer_bool_To_bool(&in.EnableDebuggingHandlers, &out.EnableDebuggingHandlers, s); err != nil {
		return err
	}
	out.MinimumGCAge = in.MinimumGCAge
	out.MaxPerPodContainerCount = in.MaxPerPodContainerCount
	if err := api.Convert_Pointer_int32_To_int32(&in.MaxContainerCount, &out.MaxContainerCount, s); err != nil {
		return err
	}
	out.CAdvisorPort = in.CAdvisorPort
	out.HealthzPort = in.HealthzPort
	out.HealthzBindAddress = in.HealthzBindAddress
	if err := api.Convert_Pointer_int32_To_int32(&in.OOMScoreAdj, &out.OOMScoreAdj, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_bool_To_bool(&in.RegisterNode, &out.RegisterNode, s); err != nil {
		return err
	}
	out.ClusterDomain = in.ClusterDomain
	out.MasterServiceNamespace = in.MasterServiceNamespace
	out.ClusterDNS = in.ClusterDNS
	out.StreamingConnectionIdleTimeout = in.StreamingConnectionIdleTimeout
	out.NodeStatusUpdateFrequency = in.NodeStatusUpdateFrequency
	out.ImageMinimumGCAge = in.ImageMinimumGCAge
	if err := api.Convert_Pointer_int32_To_int32(&in.ImageGCHighThresholdPercent, &out.ImageGCHighThresholdPercent, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_int32_To_int32(&in.ImageGCLowThresholdPercent, &out.ImageGCLowThresholdPercent, s); err != nil {
		return err
	}
	out.LowDiskSpaceThresholdMB = in.LowDiskSpaceThresholdMB
	out.VolumeStatsAggPeriod = in.VolumeStatsAggPeriod
	out.NetworkPluginName = in.NetworkPluginName
	out.NetworkPluginDir = in.NetworkPluginDir
	out.VolumePluginDir = in.VolumePluginDir
	out.CloudProvider = in.CloudProvider
	out.CloudConfigFile = in.CloudConfigFile
	out.KubeletCgroups = in.KubeletCgroups
	out.RuntimeCgroups = in.RuntimeCgroups
	out.SystemCgroups = in.SystemCgroups
	out.CgroupRoot = in.CgroupRoot
	if err := api.Convert_Pointer_bool_To_bool(&in.CgroupsPerQOS, &out.CgroupsPerQOS, s); err != nil {
		return err
	}
	out.ContainerRuntime = in.ContainerRuntime
	out.RuntimeRequestTimeout = in.RuntimeRequestTimeout
	out.RktPath = in.RktPath
	out.RktAPIEndpoint = in.RktAPIEndpoint
	out.RktStage1Image = in.RktStage1Image
	if err := api.Convert_Pointer_string_To_string(&in.LockFilePath, &out.LockFilePath, s); err != nil {
		return err
	}
	out.ExitOnLockContention = in.ExitOnLockContention
	if err := api.Convert_Pointer_bool_To_bool(&in.ConfigureCBR0, &out.ConfigureCBR0, s); err != nil {
		return err
	}
	out.HairpinMode = in.HairpinMode
	out.BabysitDaemons = in.BabysitDaemons
	out.MaxPods = in.MaxPods
	out.NvidiaGPUs = in.NvidiaGPUs
	out.DockerExecHandlerName = in.DockerExecHandlerName
	out.PodCIDR = in.PodCIDR
	out.ResolverConfig = in.ResolverConfig
	if err := api.Convert_Pointer_bool_To_bool(&in.CPUCFSQuota, &out.CPUCFSQuota, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_bool_To_bool(&in.Containerized, &out.Containerized, s); err != nil {
		return err
	}
	out.MaxOpenFiles = in.MaxOpenFiles
	if err := api.Convert_Pointer_bool_To_bool(&in.ReconcileCIDR, &out.ReconcileCIDR, s); err != nil {
		return err
	}
	if err := api.Convert_Pointer_bool_To_bool(&in.RegisterSchedulable, &out.RegisterSchedulable, s); err != nil {
		return err
	}
	out.ContentType = in.ContentType
	if err := api.Convert_Pointer_int32_To_int32(&in.KubeAPIQPS, &out.KubeAPIQPS, s); err != nil {
		return err
	}
	out.KubeAPIBurst = in.KubeAPIBurst
	if err := api.Convert_Pointer_bool_To_bool(&in.SerializeImagePulls, &out.SerializeImagePulls, s); err != nil {
		return err
	}
	out.ExperimentalFlannelOverlay = in.ExperimentalFlannelOverlay
	out.OutOfDiskTransitionFrequency = in.OutOfDiskTransitionFrequency
	out.NodeIP = in.NodeIP
	out.NodeLabels = in.NodeLabels
	out.NonMasqueradeCIDR = in.NonMasqueradeCIDR
	out.EnableCustomMetrics = in.EnableCustomMetrics
	if err := api.Convert_Pointer_string_To_string(&in.EvictionHard, &out.EvictionHard, s); err != nil {
		return err
	}
	out.EvictionSoft = in.EvictionSoft
	out.EvictionSoftGracePeriod = in.EvictionSoftGracePeriod
	out.EvictionPressureTransitionPeriod = in.EvictionPressureTransitionPeriod
	out.EvictionMaxPodGracePeriod = in.EvictionMaxPodGracePeriod
	out.EvictionMinimumReclaim = in.EvictionMinimumReclaim
	out.PodsPerCore = in.PodsPerCore
	if err := api.Convert_Pointer_bool_To_bool(&in.EnableControllerAttachDetach, &out.EnableControllerAttachDetach, s); err != nil {
		return err
	}
	if in.SystemReserved != nil {
		in, out := &in.SystemReserved, &out.SystemReserved
		*out = make(config.ConfigurationMap, len(*in))
		for key, val := range *in {
			(*out)[key] = val
		}
	} else {
		out.SystemReserved = nil
	}
	if in.KubeReserved != nil {
		in, out := &in.KubeReserved, &out.KubeReserved
		*out = make(config.ConfigurationMap, len(*in))
		for key, val := range *in {
			(*out)[key] = val
		}
	} else {
		out.KubeReserved = nil
	}
	out.ProtectKernelDefaults = in.ProtectKernelDefaults
	return nil
}