func (s *SchedulerServer) addCoreFlags(fs *pflag.FlagSet) {
fs.IntVar(&s.Port, "port", s.Port, "The port that the scheduler's http service runs on")
fs.IPVar(&s.Address, "address", s.Address, "The IP address to serve on (set to 0.0.0.0 for all interfaces)")
fs.BoolVar(&s.EnableProfiling, "profiling", s.EnableProfiling, "Enable profiling via web interface host:port/debug/pprof/")
fs.StringSliceVar(&s.APIServerList, "api-servers", s.APIServerList, "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.StringVar(&s.AuthPath, "auth-path", s.AuthPath, "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
fs.StringSliceVar(&s.EtcdServerList, "etcd-servers", s.EtcdServerList, "List of etcd servers to watch (http://ip:port), comma separated. Mutually exclusive with --etcd-config")
fs.StringVar(&s.EtcdConfigFile, "etcd-config", s.EtcdConfigFile, "The config file for the etcd client. Mutually exclusive with --etcd-servers.")
fs.BoolVar(&s.AllowPrivileged, "allow-privileged", s.AllowPrivileged, "If true, allow privileged containers.")
fs.StringVar(&s.ClusterDomain, "cluster-domain", s.ClusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.IPVar(&s.ClusterDNS, "cluster-dns", s.ClusterDNS, "IP address for a cluster DNS server. If set, kubelet will configure all containers to use this for DNS resolution in addition to the host's DNS servers")
fs.StringVar(&s.StaticPodsConfigPath, "static-pods-config", s.StaticPodsConfigPath, "Path for specification of static pods. Path should point to dir containing the staticPods configuration files. Defaults to none.")
fs.StringVar(&s.MesosMaster, "mesos-master", s.MesosMaster, "Location of the Mesos master. The format is a comma-delimited list of of hosts like zk://host1:port,host2:port/mesos. If using ZooKeeper, pay particular attention to the leading zk:// and trailing /mesos! If not using ZooKeeper, standard URLs like http://localhost are also acceptable.")
fs.StringVar(&s.MesosUser, "mesos-user", s.MesosUser, "Mesos user for this framework, defaults to root.")
fs.StringVar(&s.MesosRole, "mesos-role", s.MesosRole, "Mesos role for this framework, defaults to none.")
fs.StringVar(&s.MesosAuthPrincipal, "mesos-authentication-principal", s.MesosAuthPrincipal, "Mesos authentication principal.")
fs.StringVar(&s.MesosAuthSecretFile, "mesos-authentication-secret-file", s.MesosAuthSecretFile, "Mesos authentication secret file.")
fs.StringVar(&s.MesosAuthProvider, "mesos-authentication-provider", s.MesosAuthProvider, fmt.Sprintf("Authentication provider to use, default is SASL that supports mechanisms: %+v", mech.ListSupported()))
fs.BoolVar(&s.Checkpoint, "checkpoint", s.Checkpoint, "Enable/disable checkpointing for the kubernetes-mesos framework.")
fs.Float64Var(&s.FailoverTimeout, "failover-timeout", s.FailoverTimeout, fmt.Sprintf("Framework failover timeout, in sec."))
fs.UintVar(&s.DriverPort, "driver-port", s.DriverPort, "Port that the Mesos scheduler driver process should listen on.")
fs.StringVar(&s.HostnameOverride, "hostname-override", s.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.Int64Var(&s.ReconcileInterval, "reconcile-interval", s.ReconcileInterval, "Interval at which to execute task reconciliation, in sec. Zero disables.")
fs.DurationVar(&s.ReconcileCooldown, "reconcile-cooldown", s.ReconcileCooldown, "Minimum rest period between task reconciliation operations.")
fs.StringVar(&s.SchedulerConfigFileName, "scheduler-config", s.SchedulerConfigFileName, "An ini-style configuration file with low-level scheduler settings.")
fs.BoolVar(&s.Graceful, "graceful", s.Graceful, "Indicator of a graceful failover, intended for internal use only.")
fs.BoolVar(&s.HA, "ha", s.HA, "Run the scheduler in high availability mode with leader election. All peers should be configured exactly the same.")
fs.StringVar(&s.FrameworkName, "framework-name", s.FrameworkName, "The framework name to register with Mesos.")
fs.StringVar(&s.FrameworkWebURI, "framework-weburi", s.FrameworkWebURI, "A URI that points to a web-based interface for interacting with the framework.")
fs.StringVar(&s.AdvertisedAddress, "advertised-address", s.AdvertisedAddress, "host:port address that is advertised to clients. May be used to construct artifact download URIs.")
fs.IPVar(&s.ServiceAddress, "service-address", s.ServiceAddress, "The service portal IP address that the scheduler should register with (if unset, chooses randomly)")
fs.Var(&s.DefaultContainerCPULimit, "default-container-cpu-limit", "Containers without a CPU resource limit are admitted this much CPU shares")
fs.Var(&s.DefaultContainerMemLimit, "default-container-mem-limit", "Containers without a memory resource limit are admitted this much amount of memory in MB")
fs.IntVar(&s.ExecutorLogV, "executor-logv", s.ExecutorLogV, "Logging verbosity of spawned minion and executor processes.")
fs.BoolVar(&s.ExecutorBindall, "executor-bindall", s.ExecutorBindall, "When true will set -address of the executor to 0.0.0.0.")
fs.DurationVar(&s.ExecutorSuicideTimeout, "executor-suicide-timeout", s.ExecutorSuicideTimeout, "Executor self-terminates after this period of inactivity. Zero disables suicide watch.")
fs.StringVar(&s.ExecutorCgroupPrefix, "executor-cgroup-prefix", s.ExecutorCgroupPrefix, "The cgroup prefix concatenated with MESOS_DIRECTORY must give the executor cgroup set by Mesos")
fs.BoolVar(&s.ProxyBindall, "proxy-bindall", s.ProxyBindall, "When true pass -proxy-bindall to the executor.")
fs.BoolVar(&s.RunProxy, "run-proxy", s.RunProxy, "Run the kube-proxy as a side process of the executor.")
fs.IntVar(&s.ProxyLogV, "proxy-logv", s.ProxyLogV, "Logging verbosity of spawned minion proxy processes.")
fs.StringVar(&s.MinionPathOverride, "minion-path-override", s.MinionPathOverride, "Override the PATH in the environment of the minion sub-processes.")
fs.Var(resource.NewQuantityFlagValue(&s.MinionLogMaxSize), "minion-max-log-size", "Maximum log file size for the executor and proxy before rotation")
fs.IntVar(&s.MinionLogMaxAgeInDays, "minion-max-log-age", s.MinionLogMaxAgeInDays, "Maximum log file age of the executor and proxy in days")
fs.IntVar(&s.MinionLogMaxBackups, "minion-max-log-backups", s.MinionLogMaxBackups, "Maximum log file backups of the executor and proxy to keep after rotation")
fs.StringVar(&s.KubeletRootDirectory, "kubelet-root-dir", s.KubeletRootDirectory, "Directory path for managing kubelet files (volume mounts,etc). Defaults to executor sandbox.")
fs.StringVar(&s.KubeletDockerEndpoint, "kubelet-docker-endpoint", s.KubeletDockerEndpoint, "If non-empty, kubelet will use this for the docker endpoint to communicate with.")
fs.StringVar(&s.KubeletPodInfraContainerImage, "kubelet-pod-infra-container-image", s.KubeletPodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.UintVar(&s.KubeletCadvisorPort, "kubelet-cadvisor-port", s.KubeletCadvisorPort, "The port of the kubelet's local cAdvisor endpoint")
fs.StringVar(&s.KubeletHostNetworkSources, "kubelet-host-network-sources", s.KubeletHostNetworkSources, "Comma-separated list of sources from which the Kubelet allows pods to use of host network. For all sources use \"*\" [default=\"file\"]")
fs.DurationVar(&s.KubeletSyncFrequency, "kubelet-sync-frequency", s.KubeletSyncFrequency, "Max period between synchronizing running containers and config")
fs.StringVar(&s.KubeletNetworkPluginName, "kubelet-network-plugin", s.KubeletNetworkPluginName, "<Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle")
//TODO(jdef) support this flag once we have a better handle on mesos-dns and k8s DNS integration
//fs.StringVar(&s.HADomain, "ha-domain", s.HADomain, "Domain of the HA scheduler service, only used in HA mode. If specified may be used to construct artifact download URIs.")
}
// AddFlags adds flags for a specific KubeletServer to the specified FlagSet
func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&s.Config, "config", s.Config, "Path to the config file or directory of files")
fs.DurationVar(&s.SyncFrequency, "sync_frequency", s.SyncFrequency, "Max period between synchronizing running containers and config")
fs.DurationVar(&s.StatusUpdateFrequency, "status_update_frequency", s.StatusUpdateFrequency, "Duration between posting node status to master")
fs.DurationVar(&s.FileCheckFrequency, "file_check_frequency", s.FileCheckFrequency, "Duration between checking config files for new data")
fs.DurationVar(&s.HTTPCheckFrequency, "http_check_frequency", s.HTTPCheckFrequency, "Duration between checking http for new data")
fs.StringVar(&s.ManifestURL, "manifest_url", s.ManifestURL, "URL for accessing the container manifest")
fs.BoolVar(&s.EnableServer, "enable_server", s.EnableServer, "Enable the info server")
fs.Var(&s.Address, "address", "The IP address for the info server to serve on (set to 0.0.0.0 for all interfaces)")
fs.UintVar(&s.Port, "port", s.Port, "The port for the info server to serve on")
fs.StringVar(&s.HostnameOverride, "hostname_override", s.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.StringVar(&s.PodInfraContainerImage, "pod_infra_container_image", s.PodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.StringVar(&s.DockerEndpoint, "docker_endpoint", s.DockerEndpoint, "If non-empty, use this for the docker endpoint to communicate with")
fs.StringVar(&s.RootDirectory, "root_dir", s.RootDirectory, "Directory path for managing kubelet files (volume mounts,etc).")
fs.BoolVar(&s.AllowPrivileged, "allow_privileged", s.AllowPrivileged, "If true, allow containers to request privileged mode. [default=false]")
fs.Float64Var(&s.RegistryPullQPS, "registry_qps", s.RegistryPullQPS, "If > 0, limit registry pull QPS to this value. If 0, unlimited. [default=0.0]")
fs.IntVar(&s.RegistryBurst, "registry_burst", s.RegistryBurst, "Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry_qps. Only used if --registry_qps > 0")
fs.BoolVar(&s.RunOnce, "runonce", s.RunOnce, "If true, exit after spawning pods from local manifests or remote urls. Exclusive with --api_servers, and --enable-server")
fs.BoolVar(&s.EnableDebuggingHandlers, "enable_debugging_handlers", s.EnableDebuggingHandlers, "Enables server endpoints for log collection and local running of containers and commands")
fs.DurationVar(&s.MinimumGCAge, "minimum_container_ttl_duration", s.MinimumGCAge, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'")
fs.IntVar(&s.MaxPerPodContainerCount, "maximum_dead_containers_per_container", s.MaxPerPodContainerCount, "Maximum number of old instances of a container to retain per container. Each container takes up some disk space. Default: 5.")
fs.IntVar(&s.MaxContainerCount, "maximum_dead_containers", s.MaxContainerCount, "Maximum number of old instances of a containers to retain globally. Each container takes up some disk space. Default: 100.")
fs.StringVar(&s.AuthPath, "auth_path", s.AuthPath, "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
fs.UintVar(&s.CadvisorPort, "cadvisor_port", s.CadvisorPort, "The port of the localhost cAdvisor endpoint")
fs.IntVar(&s.OOMScoreAdj, "oom_score_adj", s.OOMScoreAdj, "The oom_score_adj value for kubelet process. Values must be within the range [-1000, 1000]")
fs.Var(&s.APIServerList, "api_servers", "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.StringVar(&s.ClusterDomain, "cluster_domain", s.ClusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.StringVar(&s.MasterServiceNamespace, "master_service_namespace", s.MasterServiceNamespace, "The namespace from which the kubernetes master services should be injected into pods")
fs.Var(&s.ClusterDNS, "cluster_dns", "IP address for a cluster DNS server. If set, kubelet will configure all containers to use this for DNS resolution in addition to the host's DNS servers")
fs.BoolVar(&s.ReallyCrashForTesting, "really_crash_for_testing", s.ReallyCrashForTesting, "If true, crash with panics more often.")
fs.DurationVar(&s.StreamingConnectionIdleTimeout, "streaming_connection_idle_timeout", 0, "Maximum time a streaming connection can be idle before the connection is automatically closed. Example: '5m'")
fs.IntVar(&s.ImageGCHighThresholdPercent, "image_gc_high_threshold", s.ImageGCHighThresholdPercent, "The percent of disk usage after which image garbage collection is always run. Default: 90%%")
fs.IntVar(&s.ImageGCLowThresholdPercent, "image_gc_low_threshold", s.ImageGCLowThresholdPercent, "The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Default: 80%%")
}
func (conf *DatastoreConfig) AddFlags(flags *flag.FlagSet) {
flags.StringVarP(&conf.Mode, "mode", "m", "load", "[load|run]")
flags.Int64VarP(&conf.Records, "records", "", 1000000, "Number of Records.")
flags.IntVar(&conf.FieldCount, "fieldcount", 10, "Number of Fields.")
flags.IntVar(&conf.FieldSize, "fieldsize", 100, "Size of Fields.")
flags.Float64Var(&conf.ReadRatio, "readratio", 0.95, "Ratio of Reads.")
flags.Float64Var(&conf.UpdateRatio, "updateratio", 0.05, "Ratio of Updates.")
// flags.Float64Var(&conf.InsertRatio, "readratio", 0.0, "Ratio of Inserts.")
// flags.Float64Var(&conf.ScanRatio, "readratio", 0.0, "Ratio of Scan operations.")
}
// AddFlags adds flags for a specific KubeletServer to the specified FlagSet
func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&s.Config, "config", s.Config, "Path to the config file or directory of files")
fs.DurationVar(&s.SyncFrequency, "sync_frequency", s.SyncFrequency, "Max period between synchronizing running containers and config")
fs.DurationVar(&s.FileCheckFrequency, "file_check_frequency", s.FileCheckFrequency, "Duration between checking config files for new data")
fs.DurationVar(&s.HTTPCheckFrequency, "http_check_frequency", s.HTTPCheckFrequency, "Duration between checking http for new data")
fs.StringVar(&s.ManifestURL, "manifest_url", s.ManifestURL, "URL for accessing the container manifest")
fs.BoolVar(&s.EnableServer, "enable_server", s.EnableServer, "Enable the info server")
fs.Var(&s.Address, "address", "The IP address for the info server to serve on (set to 0.0.0.0 for all interfaces)")
fs.UintVar(&s.Port, "port", s.Port, "The port for the info server to serve on")
fs.UintVar(&s.ReadOnlyPort, "read_only_port", s.ReadOnlyPort, "The read-only port for the info server to serve on (set to 0 to disable)")
fs.StringVar(&s.TLSCertFile, "tls_cert_file", s.TLSCertFile, ""+
"File containing x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). "+
"If --tls_cert_file and --tls_private_key_file are not provided, a self-signed certificate and key "+
"are generated for the public address and saved to the directory passed to --cert_dir.")
fs.StringVar(&s.TLSPrivateKeyFile, "tls_private_key_file", s.TLSPrivateKeyFile, "File containing x509 private key matching --tls_cert_file.")
fs.StringVar(&s.CertDirectory, "cert_dir", s.CertDirectory, "The directory where the TLS certs are located (by default /var/run/kubernetes). "+
"If --tls_cert_file and --tls_private_key_file are provided, this flag will be ignored.")
fs.StringVar(&s.HostnameOverride, "hostname_override", s.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.StringVar(&s.PodInfraContainerImage, "pod_infra_container_image", s.PodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.StringVar(&s.DockerEndpoint, "docker_endpoint", s.DockerEndpoint, "If non-empty, use this for the docker endpoint to communicate with")
fs.StringVar(&s.RootDirectory, "root_dir", s.RootDirectory, "Directory path for managing kubelet files (volume mounts,etc).")
fs.BoolVar(&s.AllowPrivileged, "allow_privileged", s.AllowPrivileged, "If true, allow containers to request privileged mode. [default=false]")
fs.StringVar(&s.HostNetworkSources, "host_network_sources", s.HostNetworkSources, "Comma-separated list of sources from which the Kubelet allows pods to use of host network. For all sources use \"*\" [default=\"file\"]")
fs.Float64Var(&s.RegistryPullQPS, "registry_qps", s.RegistryPullQPS, "If > 0, limit registry pull QPS to this value. If 0, unlimited. [default=0.0]")
fs.IntVar(&s.RegistryBurst, "registry_burst", s.RegistryBurst, "Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry_qps. Only used if --registry_qps > 0")
fs.BoolVar(&s.RunOnce, "runonce", s.RunOnce, "If true, exit after spawning pods from local manifests or remote urls. Exclusive with --api_servers, and --enable-server")
fs.BoolVar(&s.EnableDebuggingHandlers, "enable_debugging_handlers", s.EnableDebuggingHandlers, "Enables server endpoints for log collection and local running of containers and commands")
fs.DurationVar(&s.MinimumGCAge, "minimum_container_ttl_duration", s.MinimumGCAge, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'")
fs.IntVar(&s.MaxPerPodContainerCount, "maximum_dead_containers_per_container", s.MaxPerPodContainerCount, "Maximum number of old instances of a container to retain per container. Each container takes up some disk space. Default: 5.")
fs.IntVar(&s.MaxContainerCount, "maximum_dead_containers", s.MaxContainerCount, "Maximum number of old instances of a containers to retain globally. Each container takes up some disk space. Default: 100.")
fs.StringVar(&s.AuthPath, "auth_path", s.AuthPath, "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
fs.UintVar(&s.CadvisorPort, "cadvisor_port", s.CadvisorPort, "The port of the localhost cAdvisor endpoint")
fs.IntVar(&s.HealthzPort, "healthz_port", s.HealthzPort, "The port of the localhost healthz endpoint")
fs.Var(&s.HealthzBindAddress, "healthz_bind_address", "The IP address for the healthz server to serve on, defaulting to 127.0.0.1 (set to 0.0.0.0 for all interfaces)")
fs.IntVar(&s.OOMScoreAdj, "oom_score_adj", s.OOMScoreAdj, "The oom_score_adj value for kubelet process. Values must be within the range [-1000, 1000]")
fs.Var(&s.APIServerList, "api_servers", "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.StringVar(&s.ClusterDomain, "cluster_domain", s.ClusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.StringVar(&s.MasterServiceNamespace, "master_service_namespace", s.MasterServiceNamespace, "The namespace from which the kubernetes master services should be injected into pods")
fs.Var(&s.ClusterDNS, "cluster_dns", "IP address for a cluster DNS server. If set, kubelet will configure all containers to use this for DNS resolution in addition to the host's DNS servers")
fs.DurationVar(&s.StreamingConnectionIdleTimeout, "streaming_connection_idle_timeout", 0, "Maximum time a streaming connection can be idle before the connection is automatically closed. Example: '5m'")
fs.DurationVar(&s.NodeStatusUpdateFrequency, "node_status_update_frequency", s.NodeStatusUpdateFrequency, "Specifies how often kubelet posts node status to master. Note: be cautious when changing the constant, it must work with nodeMonitorGracePeriod in nodecontroller. Default: 10s")
fs.IntVar(&s.ImageGCHighThresholdPercent, "image_gc_high_threshold", s.ImageGCHighThresholdPercent, "The percent of disk usage after which image garbage collection is always run. Default: 90%%")
fs.IntVar(&s.ImageGCLowThresholdPercent, "image_gc_low_threshold", s.ImageGCLowThresholdPercent, "The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Default: 80%%")
fs.StringVar(&s.NetworkPluginName, "network_plugin", s.NetworkPluginName, "<Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle")
fs.StringVar(&s.CloudProvider, "cloud_provider", s.CloudProvider, "The provider for cloud services. Empty string for no provider.")
fs.StringVar(&s.CloudConfigFile, "cloud_config", s.CloudConfigFile, "The path to the cloud provider configuration file. Empty string for no configuration file.")
fs.StringVar(&s.ResourceContainer, "resource_container", s.ResourceContainer, "Absolute name of the resource-only container to create and run the Kubelet in (Default: /kubelet).")
// Flags intended for testing, not recommended used in production environments.
fs.BoolVar(&s.ReallyCrashForTesting, "really_crash_for_testing", s.ReallyCrashForTesting, "If true, when panics occur crash. Intended for testing.")
fs.Float64Var(&s.ChaosChance, "chaos_chance", s.ChaosChance, "If > 0.0, introduce random client errors and latency. Intended for testing. [default=0.0]")
}
func registerFlagFloat(t reflect.Kind, fs *pflag.FlagSet, field interface{}, parts []string, vt float64, desc string) {
switch t {
case reflect.Float32:
if len(parts) == 1 {
fs.Float32Var(field.(*float32), parts[0], float32(vt), desc)
} else {
fs.Float32VarP(field.(*float32), parts[0], parts[1], float32(vt), desc)
}
case reflect.Float64:
if len(parts) == 1 {
fs.Float64Var(field.(*float64), parts[0], float64(vt), desc)
} else {
fs.Float64VarP(field.(*float64), parts[0], parts[1], float64(vt), desc)
}
}
}
// AddFlags adds flags for a specific KubeletServer to the specified FlagSet
func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&s.Config, "config", s.Config, "Path to the config file or directory of files")
fs.DurationVar(&s.SyncFrequency, "sync-frequency", s.SyncFrequency, "Max period between synchronizing running containers and config")
fs.DurationVar(&s.FileCheckFrequency, "file-check-frequency", s.FileCheckFrequency, "Duration between checking config files for new data")
fs.DurationVar(&s.HTTPCheckFrequency, "http-check-frequency", s.HTTPCheckFrequency, "Duration between checking http for new data")
fs.StringVar(&s.ManifestURL, "manifest-url", s.ManifestURL, "URL for accessing the container manifest")
fs.StringVar(&s.ManifestURLHeader, "manifest-url-header", s.ManifestURLHeader, "HTTP header to use when accessing the manifest URL, with the key separated from the value with a ':', as in 'key:value'")
fs.BoolVar(&s.EnableServer, "enable-server", s.EnableServer, "Enable the Kubelet's server")
fs.IPVar(&s.Address, "address", s.Address, "The IP address for the Kubelet to serve on (set to 0.0.0.0 for all interfaces)")
fs.UintVar(&s.Port, "port", s.Port, "The port for the Kubelet to serve on. Note that \"kubectl logs\" will not work if you set this flag.") // see #9325
fs.UintVar(&s.ReadOnlyPort, "read-only-port", s.ReadOnlyPort, "The read-only port for the Kubelet to serve on with no authentication/authorization (set to 0 to disable)")
fs.StringVar(&s.TLSCertFile, "tls-cert-file", s.TLSCertFile, ""+
"File containing x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). "+
"If --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key "+
"are generated for the public address and saved to the directory passed to --cert-dir.")
fs.StringVar(&s.TLSPrivateKeyFile, "tls-private-key-file", s.TLSPrivateKeyFile, "File containing x509 private key matching --tls-cert-file.")
fs.StringVar(&s.CertDirectory, "cert-dir", s.CertDirectory, "The directory where the TLS certs are located (by default /var/run/kubernetes). "+
"If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored.")
fs.StringVar(&s.HostnameOverride, "hostname-override", s.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.StringVar(&s.PodInfraContainerImage, "pod-infra-container-image", s.PodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.StringVar(&s.DockerEndpoint, "docker-endpoint", s.DockerEndpoint, "If non-empty, use this for the docker endpoint to communicate with")
fs.StringVar(&s.RootDirectory, "root-dir", s.RootDirectory, "Directory path for managing kubelet files (volume mounts,etc).")
fs.BoolVar(&s.AllowPrivileged, "allow-privileged", s.AllowPrivileged, "If true, allow containers to request privileged mode. [default=false]")
fs.StringVar(&s.HostNetworkSources, "host-network-sources", s.HostNetworkSources, "Comma-separated list of sources from which the Kubelet allows pods to use of host network. For all sources use \"*\" [default=\"file\"]")
fs.StringVar(&s.HostPIDSources, "host-pid-sources", s.HostPIDSources, "Comma-separated list of sources from which the Kubelet allows pods to use the host pid namespace. For all sources use \"*\" [default=\"file\"]")
fs.StringVar(&s.HostIPCSources, "host-ipc-sources", s.HostIPCSources, "Comma-separated list of sources from which the Kubelet allows pods to use the host ipc namespace. For all sources use \"*\" [default=\"file\"]")
fs.Float64Var(&s.RegistryPullQPS, "registry-qps", s.RegistryPullQPS, "If > 0, limit registry pull QPS to this value. If 0, unlimited. [default=0.0]")
fs.IntVar(&s.RegistryBurst, "registry-burst", s.RegistryBurst, "Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry-qps. Only used if --registry-qps > 0")
fs.Float32Var(&s.EventRecordQPS, "event-qps", s.EventRecordQPS, "If > 0, limit event creations per second to this value. If 0, unlimited. [default=0.0]")
fs.IntVar(&s.EventBurst, "event-burst", s.EventBurst, "Maximum size of a bursty event records, temporarily allows event records to burst to this number, while still not exceeding event-qps. Only used if --event-qps > 0")
fs.BoolVar(&s.RunOnce, "runonce", s.RunOnce, "If true, exit after spawning pods from local manifests or remote urls. Exclusive with --api-servers, and --enable-server")
fs.BoolVar(&s.EnableDebuggingHandlers, "enable-debugging-handlers", s.EnableDebuggingHandlers, "Enables server endpoints for log collection and local running of containers and commands")
fs.DurationVar(&s.MinimumGCAge, "minimum-container-ttl-duration", s.MinimumGCAge, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'")
fs.IntVar(&s.MaxPerPodContainerCount, "maximum-dead-containers-per-container", s.MaxPerPodContainerCount, "Maximum number of old instances to retain per container. Each container takes up some disk space. Default: 2.")
fs.IntVar(&s.MaxContainerCount, "maximum-dead-containers", s.MaxContainerCount, "Maximum number of old instances of containers to retain globally. Each container takes up some disk space. Default: 100.")
fs.Var(&s.AuthPath, "auth-path", "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
fs.MarkDeprecated("auth-path", "will be removed in a future version")
fs.Var(&s.KubeConfig, "kubeconfig", "Path to a kubeconfig file, specifying how to authenticate to API server (the master location is set by the api-servers flag).")
fs.UintVar(&s.CadvisorPort, "cadvisor-port", s.CadvisorPort, "The port of the localhost cAdvisor endpoint")
fs.IntVar(&s.HealthzPort, "healthz-port", s.HealthzPort, "The port of the localhost healthz endpoint")
fs.IPVar(&s.HealthzBindAddress, "healthz-bind-address", s.HealthzBindAddress, "The IP address for the healthz server to serve on, defaulting to 127.0.0.1 (set to 0.0.0.0 for all interfaces)")
fs.IntVar(&s.OOMScoreAdj, "oom-score-adj", s.OOMScoreAdj, "The oom-score-adj value for kubelet process. Values must be within the range [-1000, 1000]")
fs.StringSliceVar(&s.APIServerList, "api-servers", []string{}, "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.BoolVar(&s.RegisterNode, "register-node", s.RegisterNode, "Register the node with the apiserver (defaults to true if --api-servers is set)")
fs.StringVar(&s.ClusterDomain, "cluster-domain", s.ClusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.StringVar(&s.MasterServiceNamespace, "master-service-namespace", s.MasterServiceNamespace, "The namespace from which the kubernetes master services should be injected into pods")
fs.IPVar(&s.ClusterDNS, "cluster-dns", s.ClusterDNS, "IP address for a cluster DNS server. If set, kubelet will configure all containers to use this for DNS resolution in addition to the host's DNS servers")
fs.DurationVar(&s.StreamingConnectionIdleTimeout, "streaming-connection-idle-timeout", 0, "Maximum time a streaming connection can be idle before the connection is automatically closed. Example: '5m'")
fs.DurationVar(&s.NodeStatusUpdateFrequency, "node-status-update-frequency", s.NodeStatusUpdateFrequency, "Specifies how often kubelet posts node status to master. Note: be cautious when changing the constant, it must work with nodeMonitorGracePeriod in nodecontroller. Default: 10s")
fs.IntVar(&s.ImageGCHighThresholdPercent, "image-gc-high-threshold", s.ImageGCHighThresholdPercent, "The percent of disk usage after which image garbage collection is always run. Default: 90%%")
fs.IntVar(&s.ImageGCLowThresholdPercent, "image-gc-low-threshold", s.ImageGCLowThresholdPercent, "The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Default: 80%%")
fs.IntVar(&s.LowDiskSpaceThresholdMB, "low-diskspace-threshold-mb", s.LowDiskSpaceThresholdMB, "The absolute free disk space, in MB, to maintain. When disk space falls below this threshold, new pods would be rejected. Default: 256")
fs.StringVar(&s.NetworkPluginName, "network-plugin", s.NetworkPluginName, "<Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle")
fs.StringVar(&s.NetworkPluginDir, "network-plugin-dir", s.NetworkPluginDir, "<Warning: Alpha feature> The full path of the directory in which to search for network plugins")
fs.StringVar(&s.CloudProvider, "cloud-provider", s.CloudProvider, "The provider for cloud services. Empty string for no provider.")
fs.StringVar(&s.CloudConfigFile, "cloud-config", s.CloudConfigFile, "The path to the cloud provider configuration file. Empty string for no configuration file.")
fs.StringVar(&s.ResourceContainer, "resource-container", s.ResourceContainer, "Absolute name of the resource-only container to create and run the Kubelet in (Default: /kubelet).")
fs.StringVar(&s.CgroupRoot, "cgroup-root", s.CgroupRoot, "Optional root cgroup to use for pods. This is handled by the container runtime on a best effort basis. Default: '', which means use the container runtime default.")
fs.StringVar(&s.ContainerRuntime, "container-runtime", s.ContainerRuntime, "The container runtime to use. Possible values: 'docker', 'rkt'. Default: 'docker'.")
fs.StringVar(&s.RktPath, "rkt-path", s.RktPath, "Path of rkt binary. Leave empty to use the first rkt in $PATH. Only used if --container-runtime='rkt'")
fs.StringVar(&s.RktStage1Image, "rkt-stage1-image", s.RktStage1Image, "image to use as stage1. Local paths and http/https URLs are supported. If empty, the 'stage1.aci' in the same directory as '--rkt-path' will be used")
fs.StringVar(&s.SystemContainer, "system-container", s.SystemContainer, "Optional resource-only container in which to place all non-kernel processes that are not already in a container. Empty for no container. Rolling back the flag requires a reboot. (Default: \"\").")
fs.BoolVar(&s.ConfigureCBR0, "configure-cbr0", s.ConfigureCBR0, "If true, kubelet will configure cbr0 based on Node.Spec.PodCIDR.")
fs.IntVar(&s.MaxPods, "max-pods", 40, "Number of Pods that can run on this Kubelet.")
fs.StringVar(&s.DockerExecHandlerName, "docker-exec-handler", s.DockerExecHandlerName, "Handler to use when executing a command in a container. Valid values are 'native' and 'nsenter'. Defaults to 'native'.")
fs.StringVar(&s.PodCIDR, "pod-cidr", "", "The CIDR to use for pod IP addresses, only used in standalone mode. In cluster mode, this is obtained from the master.")
fs.StringVar(&s.ResolverConfig, "resolv-conf", kubelet.ResolvConfDefault, "Resolver configuration file used as the basis for the container DNS resolution configuration.")
fs.BoolVar(&s.CPUCFSQuota, "cpu-cfs-quota", s.CPUCFSQuota, "Enable CPU CFS quota enforcement for containers that specify CPU limits")
// Flags intended for testing, not recommended used in production environments.
fs.BoolVar(&s.ReallyCrashForTesting, "really-crash-for-testing", s.ReallyCrashForTesting, "If true, when panics occur crash. Intended for testing.")
fs.Float64Var(&s.ChaosChance, "chaos-chance", s.ChaosChance, "If > 0.0, introduce random client errors and latency. Intended for testing. [default=0.0]")
fs.BoolVar(&s.Containerized, "containerized", s.Containerized, "Experimental support for running kubelet in a container. Intended for testing. [default=false]")
}
// AddFlags adds flags for a specific KubeletServer to the specified FlagSet
func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&s.Config, "config", s.Config, "Path to the config file or directory of files")
fs.DurationVar(&s.SyncFrequency.Duration, "sync-frequency", s.SyncFrequency.Duration, "Max period between synchronizing running containers and config")
fs.DurationVar(&s.FileCheckFrequency.Duration, "file-check-frequency", s.FileCheckFrequency.Duration, "Duration between checking config files for new data")
fs.DurationVar(&s.HTTPCheckFrequency.Duration, "http-check-frequency", s.HTTPCheckFrequency.Duration, "Duration between checking http for new data")
fs.StringVar(&s.ManifestURL, "manifest-url", s.ManifestURL, "URL for accessing the container manifest")
fs.StringVar(&s.ManifestURLHeader, "manifest-url-header", s.ManifestURLHeader, "HTTP header to use when accessing the manifest URL, with the key separated from the value with a ':', as in 'key:value'")
fs.BoolVar(&s.EnableServer, "enable-server", s.EnableServer, "Enable the Kubelet's server")
fs.Var(componentconfig.IPVar{Val: &s.Address}, "address", "The IP address for the Kubelet to serve on (set to 0.0.0.0 for all interfaces)")
fs.UintVar(&s.Port, "port", s.Port, "The port for the Kubelet to serve on.")
fs.UintVar(&s.ReadOnlyPort, "read-only-port", s.ReadOnlyPort, "The read-only port for the Kubelet to serve on with no authentication/authorization (set to 0 to disable)")
fs.StringVar(&s.TLSCertFile, "tls-cert-file", s.TLSCertFile, ""+
"File containing x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). "+
"If --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key "+
"are generated for the public address and saved to the directory passed to --cert-dir.")
fs.StringVar(&s.TLSPrivateKeyFile, "tls-private-key-file", s.TLSPrivateKeyFile, "File containing x509 private key matching --tls-cert-file.")
fs.StringVar(&s.CertDirectory, "cert-dir", s.CertDirectory, "The directory where the TLS certs are located (by default /var/run/kubernetes). "+
"If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored.")
fs.StringVar(&s.HostnameOverride, "hostname-override", s.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.StringVar(&s.PodInfraContainerImage, "pod-infra-container-image", s.PodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.StringVar(&s.DockerEndpoint, "docker-endpoint", s.DockerEndpoint, "If non-empty, use this for the docker endpoint to communicate with")
fs.StringVar(&s.RootDirectory, "root-dir", s.RootDirectory, "Directory path for managing kubelet files (volume mounts,etc).")
fs.StringVar(&s.SeccompProfileRoot, "seccomp-profile-root", s.SeccompProfileRoot, "Directory path for seccomp profiles.")
fs.BoolVar(&s.AllowPrivileged, "allow-privileged", s.AllowPrivileged, "If true, allow containers to request privileged mode. [default=false]")
fs.StringVar(&s.HostNetworkSources, "host-network-sources", s.HostNetworkSources, "Comma-separated list of sources from which the Kubelet allows pods to use of host network. [default=\"*\"]")
fs.StringVar(&s.HostPIDSources, "host-pid-sources", s.HostPIDSources, "Comma-separated list of sources from which the Kubelet allows pods to use the host pid namespace. [default=\"*\"]")
fs.StringVar(&s.HostIPCSources, "host-ipc-sources", s.HostIPCSources, "Comma-separated list of sources from which the Kubelet allows pods to use the host ipc namespace. [default=\"*\"]")
fs.Float64Var(&s.RegistryPullQPS, "registry-qps", s.RegistryPullQPS, "If > 0, limit registry pull QPS to this value. If 0, unlimited. [default=5.0]")
fs.Int32Var(&s.RegistryBurst, "registry-burst", s.RegistryBurst, "Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry-qps. Only used if --registry-qps > 0")
fs.Float32Var(&s.EventRecordQPS, "event-qps", s.EventRecordQPS, "If > 0, limit event creations per second to this value. If 0, unlimited.")
fs.Int32Var(&s.EventBurst, "event-burst", s.EventBurst, "Maximum size of a bursty event records, temporarily allows event records to burst to this number, while still not exceeding event-qps. Only used if --event-qps > 0")
fs.BoolVar(&s.RunOnce, "runonce", s.RunOnce, "If true, exit after spawning pods from local manifests or remote urls. Exclusive with --api-servers, and --enable-server")
fs.BoolVar(&s.EnableDebuggingHandlers, "enable-debugging-handlers", s.EnableDebuggingHandlers, "Enables server endpoints for log collection and local running of containers and commands")
fs.DurationVar(&s.MinimumGCAge.Duration, "minimum-container-ttl-duration", s.MinimumGCAge.Duration, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'")
fs.Int32Var(&s.MaxPerPodContainerCount, "maximum-dead-containers-per-container", s.MaxPerPodContainerCount, "Maximum number of old instances to retain per container. Each container takes up some disk space. Default: 2.")
fs.Int32Var(&s.MaxContainerCount, "maximum-dead-containers", s.MaxContainerCount, "Maximum number of old instances of containers to retain globally. Each container takes up some disk space. Default: 100.")
fs.Var(&s.AuthPath, "auth-path", "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
fs.MarkDeprecated("auth-path", "will be removed in a future version")
fs.Var(&s.KubeConfig, "kubeconfig", "Path to a kubeconfig file, specifying how to authenticate to API server (the master location is set by the api-servers flag).")
fs.UintVar(&s.CAdvisorPort, "cadvisor-port", s.CAdvisorPort, "The port of the localhost cAdvisor endpoint")
fs.Int32Var(&s.HealthzPort, "healthz-port", s.HealthzPort, "The port of the localhost healthz endpoint")
fs.Var(componentconfig.IPVar{Val: &s.HealthzBindAddress}, "healthz-bind-address", "The IP address for the healthz server to serve on, defaulting to 127.0.0.1 (set to 0.0.0.0 for all interfaces)")
fs.Int32Var(&s.OOMScoreAdj, "oom-score-adj", s.OOMScoreAdj, "The oom-score-adj value for kubelet process. Values must be within the range [-1000, 1000]")
fs.StringSliceVar(&s.APIServerList, "api-servers", []string{}, "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.BoolVar(&s.RegisterNode, "register-node", s.RegisterNode, "Register the node with the apiserver (defaults to true if --api-servers is set)")
fs.StringVar(&s.ClusterDomain, "cluster-domain", s.ClusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.StringVar(&s.MasterServiceNamespace, "master-service-namespace", s.MasterServiceNamespace, "The namespace from which the kubernetes master services should be injected into pods")
fs.StringVar(&s.ClusterDNS, "cluster-dns", s.ClusterDNS, "IP address for a cluster DNS server. This value is used for containers' DNS server in case of Pods with \"dnsPolicy=ClusterFirst\"")
fs.DurationVar(&s.StreamingConnectionIdleTimeout.Duration, "streaming-connection-idle-timeout", s.StreamingConnectionIdleTimeout.Duration, "Maximum time a streaming connection can be idle before the connection is automatically closed. 0 indicates no timeout. Example: '5m'")
fs.DurationVar(&s.NodeStatusUpdateFrequency.Duration, "node-status-update-frequency", s.NodeStatusUpdateFrequency.Duration, "Specifies how often kubelet posts node status to master. Note: be cautious when changing the constant, it must work with nodeMonitorGracePeriod in nodecontroller. Default: 10s")
bindableNodeLabels := config.ConfigurationMap(s.NodeLabels)
fs.Var(&bindableNodeLabels, "node-labels", "<Warning: Alpha feature> Labels to add when registering the node in the cluster. Labels must be key=value pairs separated by ','.")
fs.DurationVar(&s.ImageMinimumGCAge.Duration, "minimum-image-ttl-duration", s.ImageMinimumGCAge.Duration, "Minimum age for a unused image before it is garbage collected. Examples: '300ms', '10s' or '2h45m'. Default: '2m'")
fs.Int32Var(&s.ImageGCHighThresholdPercent, "image-gc-high-threshold", s.ImageGCHighThresholdPercent, "The percent of disk usage after which image garbage collection is always run. Default: 90%")
fs.Int32Var(&s.ImageGCLowThresholdPercent, "image-gc-low-threshold", s.ImageGCLowThresholdPercent, "The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Default: 80%")
fs.Int32Var(&s.LowDiskSpaceThresholdMB, "low-diskspace-threshold-mb", s.LowDiskSpaceThresholdMB, "The absolute free disk space, in MB, to maintain. When disk space falls below this threshold, new pods would be rejected. Default: 256")
fs.DurationVar(&s.VolumeStatsAggPeriod.Duration, "volume-stats-agg-period", s.VolumeStatsAggPeriod.Duration, "Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes. To disable volume calculations, set to 0. Default: '1m'")
fs.StringVar(&s.NetworkPluginName, "network-plugin", s.NetworkPluginName, "<Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle")
fs.StringVar(&s.NetworkPluginDir, "network-plugin-dir", s.NetworkPluginDir, "<Warning: Alpha feature> The full path of the directory in which to search for network plugins")
fs.StringVar(&s.VolumePluginDir, "volume-plugin-dir", s.VolumePluginDir, "<Warning: Alpha feature> The full path of the directory in which to search for additional third party volume plugins")
fs.StringVar(&s.CloudProvider, "cloud-provider", s.CloudProvider, "The provider for cloud services. Empty string for no provider.")
fs.StringVar(&s.CloudConfigFile, "cloud-config", s.CloudConfigFile, "The path to the cloud provider configuration file. Empty string for no configuration file.")
fs.StringVar(&s.KubeletCgroups, "resource-container", s.KubeletCgroups, "Optional absolute name of the resource-only container to create and run the Kubelet in.")
fs.MarkDeprecated("resource-container", "Use --kubelet-cgroups instead. Will be removed in a future version.")
fs.StringVar(&s.KubeletCgroups, "kubelet-cgroups", s.KubeletCgroups, "Optional absolute name of cgroups to create and run the Kubelet in.")
fs.StringVar(&s.SystemCgroups, "system-container", s.SystemCgroups, "Optional resource-only container in which to place all non-kernel processes that are not already in a container. Empty for no container. Rolling back the flag requires a reboot. (Default: \"\").")
fs.MarkDeprecated("system-container", "Use --system-cgroups instead. Will be removed in a future version.")
fs.StringVar(&s.SystemCgroups, "system-cgroups", s.SystemCgroups, "Optional absolute name of cgroups in which to place all non-kernel processes that are not already inside a cgroup under `/`. Empty for no container. Rolling back the flag requires a reboot. (Default: \"\").")
fs.StringVar(&s.CgroupRoot, "cgroup-root", s.CgroupRoot, "Optional root cgroup to use for pods. This is handled by the container runtime on a best effort basis. Default: '', which means use the container runtime default.")
fs.StringVar(&s.ContainerRuntime, "container-runtime", s.ContainerRuntime, "The container runtime to use. Possible values: 'docker', 'rkt'. Default: 'docker'.")
fs.StringVar(&s.LockFilePath, "lock-file", s.LockFilePath, "<Warning: Alpha feature> The path to file for kubelet to use as a lock file.")
fs.BoolVar(&s.ExitOnLockContention, "exit-on-lock-contention", s.ExitOnLockContention, "Whether kubelet should exit upon lock-file contention.")
fs.StringVar(&s.RktPath, "rkt-path", s.RktPath, "Path of rkt binary. Leave empty to use the first rkt in $PATH. Only used if --container-runtime='rkt'.")
fs.StringVar(&s.RktAPIEndpoint, "rkt-api-endpoint", s.RktAPIEndpoint, "The endpoint of the rkt API service to communicate with. Only used if --container-runtime='rkt'.")
fs.StringVar(&s.RktStage1Image, "rkt-stage1-image", s.RktStage1Image, "image to use as stage1. Local paths and http/https URLs are supported. If empty, the 'stage1.aci' in the same directory as '--rkt-path' will be used.")
fs.MarkDeprecated("rkt-stage1-image", "Will be removed in a future version. The default stage1 image will be specified by the rkt configurations, see https://github.com/coreos/rkt/blob/master/Documentation/configuration.md for more details.")
fs.BoolVar(&s.ConfigureCBR0, "configure-cbr0", s.ConfigureCBR0, "If true, kubelet will configure cbr0 based on Node.Spec.PodCIDR.")
fs.StringVar(&s.HairpinMode, "hairpin-mode", s.HairpinMode, "How should the kubelet setup hairpin NAT. This allows endpoints of a Service to loadbalance back to themselves if they should try to access their own Service. Valid values are \"promiscuous-bridge\", \"hairpin-veth\" and \"none\".")
fs.BoolVar(&s.BabysitDaemons, "babysit-daemons", s.BabysitDaemons, "If true, the node has babysitter process monitoring docker and kubelet.")
fs.MarkDeprecated("babysit-daemons", "Will be removed in a future version.")
fs.Int32Var(&s.MaxPods, "max-pods", s.MaxPods, "Number of Pods that can run on this Kubelet.")
fs.Int32Var(&s.NvidiaGPUs, "experimental-nvidia-gpus", s.NvidiaGPUs, "Number of NVIDIA GPU devices on this node. Only 0 (default) and 1 are currently supported.")
fs.StringVar(&s.DockerExecHandlerName, "docker-exec-handler", s.DockerExecHandlerName, "Handler to use when executing a command in a container. Valid values are 'native' and 'nsenter'. Defaults to 'native'.")
fs.StringVar(&s.NonMasqueradeCIDR, "non-masquerade-cidr", s.NonMasqueradeCIDR, "Traffic to IPs outside this range will use IP masquerade.")
fs.StringVar(&s.PodCIDR, "pod-cidr", "", "The CIDR to use for pod IP addresses, only used in standalone mode. In cluster mode, this is obtained from the master.")
fs.StringVar(&s.ResolverConfig, "resolv-conf", s.ResolverConfig, "Resolver configuration file used as the basis for the container DNS resolution configuration.")
fs.BoolVar(&s.CPUCFSQuota, "cpu-cfs-quota", s.CPUCFSQuota, "Enable CPU CFS quota enforcement for containers that specify CPU limits")
// Flags intended for testing, not recommended used in production environments.
fs.BoolVar(&s.ReallyCrashForTesting, "really-crash-for-testing", s.ReallyCrashForTesting, "If true, when panics occur crash. Intended for testing.")
fs.Float64Var(&s.ChaosChance, "chaos-chance", s.ChaosChance, "If > 0.0, introduce random client errors and latency. Intended for testing. [default=0.0]")
fs.BoolVar(&s.Containerized, "containerized", s.Containerized, "Experimental support for running kubelet in a container. Intended for testing. [default=false]")
fs.Uint64Var(&s.MaxOpenFiles, "max-open-files", s.MaxOpenFiles, "Number of files that can be opened by Kubelet process. [default=1000000]")
fs.BoolVar(&s.ReconcileCIDR, "reconcile-cidr", s.ReconcileCIDR, "Reconcile node CIDR with the CIDR specified by the API server. No-op if register-node or configure-cbr0 is false. [default=true]")
fs.Var(&s.SystemReserved, "system-reserved", "A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for non-kubernetes components. Currently only cpu and memory are supported. See http://releases.k8s.io/HEAD/docs/user-guide/compute-resources.md for more detail. [default=none]")
fs.Var(&s.KubeReserved, "kube-reserved", "A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for kubernetes system components. Currently only cpu and memory are supported. See http://releases.k8s.io/HEAD/docs/user-guide/compute-resources.md for more detail. [default=none]")
fs.BoolVar(&s.RegisterSchedulable, "register-schedulable", s.RegisterSchedulable, "Register the node as schedulable. No-op if register-node is false. [default=true]")
fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "Content type of requests sent to apiserver.")
fs.Float32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
fs.BoolVar(&s.SerializeImagePulls, "serialize-image-pulls", s.SerializeImagePulls, "Pull images one at a time. We recommend *not* changing the default value on nodes that run docker daemon with version < 1.9 or an Aufs storage backend. Issue #10959 has more details. [default=true]")
fs.BoolVar(&s.ExperimentalFlannelOverlay, "experimental-flannel-overlay", s.ExperimentalFlannelOverlay, "Experimental support for starting the kubelet with the default overlay network (flannel). Assumes flanneld is already running in client mode. [default=false]")
fs.DurationVar(&s.OutOfDiskTransitionFrequency.Duration, "outofdisk-transition-frequency", s.OutOfDiskTransitionFrequency.Duration, "Duration for which the kubelet has to wait before transitioning out of out-of-disk node condition status. Default: 5m0s")
fs.StringVar(&s.NodeIP, "node-ip", s.NodeIP, "IP address of the node. If set, kubelet will use this IP address for the node")
fs.BoolVar(&s.EnableCustomMetrics, "enable-custom-metrics", s.EnableCustomMetrics, "Support for gathering custom metrics.")
fs.StringVar(&s.RuntimeCgroups, "runtime-cgroups", s.RuntimeCgroups, "Optional absolute name of cgroups to create and run the runtime in.")
fs.StringVar(&s.EvictionHard, "eviction-hard", s.EvictionHard, "A set of eviction thresholds (e.g. memory.available<1Gi) that if met would trigger a pod eviction.")
fs.StringVar(&s.EvictionSoft, "eviction-soft", s.EvictionSoft, "A set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a pod eviction.")
fs.StringVar(&s.EvictionSoftGracePeriod, "eviction-soft-grace-period", s.EvictionSoftGracePeriod, "A set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a pod eviction.")
fs.DurationVar(&s.EvictionPressureTransitionPeriod.Duration, "eviction-pressure-transition-period", s.EvictionPressureTransitionPeriod.Duration, "Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.")
fs.Int32Var(&s.EvictionMaxPodGracePeriod, "eviction-max-pod-grace-period", s.EvictionMaxPodGracePeriod, "Maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met. If negative, defer to pod specified value.")
fs.Int32Var(&s.PodsPerCore, "pods-per-core", s.PodsPerCore, "Number of Pods per core that can run on this Kubelet. The total number of Pods on this Kubelet cannot exceed max-pods, so max-pods will be used if this caulcation results in a larger number of Pods allowed on the Kubelet. A value of 0 disables this limit.")
}
// AddFlags adds flags for a specific KubeletServer to the specified FlagSet
func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
// TODO(#34726:1.8.0): Remove the opt-in for failing when swap is enabled.
fs.BoolVar(&s.ExperimentalFailSwapOn, "experimental-fail-swap-on", s.ExperimentalFailSwapOn, "Makes the Kubelet fail to start if swap is enabled on the node. This is a temporary opton to maintain legacy behavior, failing due to swap enabled will happen by default in v1.6.")
fs.Var(&s.KubeConfig, "kubeconfig", "Path to a kubeconfig file, specifying how to connect to the API server. --api-servers will be used for the location unless --require-kubeconfig is set.")
fs.BoolVar(&s.RequireKubeConfig, "require-kubeconfig", s.RequireKubeConfig, "If true the Kubelet will exit if there are configuration errors, and will ignore the value of --api-servers in favor of the server defined in the kubeconfig file.")
// DEPRECATED: Remove these flags at the beginning of 1.5.
fs.Var(&s.AuthPath, "auth-path", "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
fs.MarkDeprecated("auth-path", "will be removed in a future version")
fs.StringSliceVar(&s.APIServerList, "api-servers", []string{}, "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.MarkDeprecated("api-servers", "Use --kubeconfig instead. Will be removed in a future version.")
fs.StringVar(&s.PodManifestPath, "config", s.PodManifestPath, "Path to to the directory containing pod manifest files to run, or the path to a single pod manifest file.")
fs.MarkDeprecated("config", "Use --pod-manifest-path instead. Will be removed in a future version.")
fs.StringVar(&s.PodManifestPath, "pod-manifest-path", s.PodManifestPath, "Path to to the directory containing pod manifest files to run, or the path to a single pod manifest file.")
fs.DurationVar(&s.SyncFrequency.Duration, "sync-frequency", s.SyncFrequency.Duration, "Max period between synchronizing running containers and config")
fs.DurationVar(&s.FileCheckFrequency.Duration, "file-check-frequency", s.FileCheckFrequency.Duration, "Duration between checking config files for new data")
fs.DurationVar(&s.HTTPCheckFrequency.Duration, "http-check-frequency", s.HTTPCheckFrequency.Duration, "Duration between checking http for new data")
fs.StringVar(&s.ManifestURL, "manifest-url", s.ManifestURL, "URL for accessing the container manifest")
fs.StringVar(&s.ManifestURLHeader, "manifest-url-header", s.ManifestURLHeader, "HTTP header to use when accessing the manifest URL, with the key separated from the value with a ':', as in 'key:value'")
fs.BoolVar(&s.EnableServer, "enable-server", s.EnableServer, "Enable the Kubelet's server")
fs.Var(componentconfig.IPVar{Val: &s.Address}, "address", "The IP address for the Kubelet to serve on (set to 0.0.0.0 for all interfaces)")
fs.Int32Var(&s.Port, "port", s.Port, "The port for the Kubelet to serve on.")
fs.Int32Var(&s.ReadOnlyPort, "read-only-port", s.ReadOnlyPort, "The read-only port for the Kubelet to serve on with no authentication/authorization (set to 0 to disable)")
// Authentication
fs.BoolVar(&s.Authentication.Anonymous.Enabled, "anonymous-auth", s.Authentication.Anonymous.Enabled, ""+
"Enables anonymous requests to the Kubelet server. Requests that are not rejected by another "+
"authentication method are treated as anonymous requests. Anonymous requests have a username "+
"of system:anonymous, and a group name of system:unauthenticated.")
fs.BoolVar(&s.Authentication.Webhook.Enabled, "authentication-token-webhook", s.Authentication.Webhook.Enabled, ""+
"Use the TokenReview API to determine authentication for bearer tokens.")
fs.DurationVar(&s.Authentication.Webhook.CacheTTL.Duration, "authentication-token-webhook-cache-ttl", s.Authentication.Webhook.CacheTTL.Duration, ""+
"The duration to cache responses from the webhook token authenticator.")
fs.StringVar(&s.Authentication.X509.ClientCAFile, "client-ca-file", s.Authentication.X509.ClientCAFile, ""+
"If set, any request presenting a client certificate signed by one of the authorities in the client-ca-file "+
"is authenticated with an identity corresponding to the CommonName of the client certificate.")
// Authorization
fs.StringVar((*string)(&s.Authorization.Mode), "authorization-mode", string(s.Authorization.Mode), ""+
"Authorization mode for Kubelet server. Valid options are AlwaysAllow or Webhook. "+
"Webhook mode uses the SubjectAccessReview API to determine authorization.")
fs.DurationVar(&s.Authorization.Webhook.CacheAuthorizedTTL.Duration, "authorization-webhook-cache-authorized-ttl", s.Authorization.Webhook.CacheAuthorizedTTL.Duration, ""+
"The duration to cache 'authorized' responses from the webhook authorizer.")
fs.DurationVar(&s.Authorization.Webhook.CacheUnauthorizedTTL.Duration, "authorization-webhook-cache-unauthorized-ttl", s.Authorization.Webhook.CacheUnauthorizedTTL.Duration, ""+
"The duration to cache 'unauthorized' responses from the webhook authorizer.")
fs.StringVar(&s.TLSCertFile, "tls-cert-file", s.TLSCertFile, ""+
"File containing x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). "+
"If --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key "+
"are generated for the public address and saved to the directory passed to --cert-dir.")
fs.StringVar(&s.TLSPrivateKeyFile, "tls-private-key-file", s.TLSPrivateKeyFile, "File containing x509 private key matching --tls-cert-file.")
fs.StringVar(&s.CertDirectory, "cert-dir", s.CertDirectory, "The directory where the TLS certs are located (by default /var/run/kubernetes). "+
"If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored.")
fs.StringVar(&s.BootstrapKubeconfig, "experimental-bootstrap-kubeconfig", s.BootstrapKubeconfig, "<Warning: Experimental feature> Path to a kubeconfig file that will be used to get client certificate for kubelet. "+
"If the file specified by --kubeconfig does not exist, the bootstrap kubeconfig is used to request a client certificate from the API server. "+
"On success, a kubeconfig file referencing the generated key and obtained certificate is written to the path specified by --kubeconfig. "+
"The certificate and key file will be stored in the directory pointed by --cert-dir.")
fs.StringVar(&s.HostnameOverride, "hostname-override", s.HostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.StringVar(&s.PodInfraContainerImage, "pod-infra-container-image", s.PodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.StringVar(&s.DockerEndpoint, "docker-endpoint", s.DockerEndpoint, "Use this for the docker endpoint to communicate with")
fs.StringVar(&s.RootDirectory, "root-dir", s.RootDirectory, "Directory path for managing kubelet files (volume mounts,etc).")
fs.StringVar(&s.SeccompProfileRoot, "seccomp-profile-root", s.SeccompProfileRoot, "Directory path for seccomp profiles.")
fs.BoolVar(&s.AllowPrivileged, "allow-privileged", s.AllowPrivileged, "If true, allow containers to request privileged mode. [default=false]")
fs.StringSliceVar(&s.HostNetworkSources, "host-network-sources", s.HostNetworkSources, "Comma-separated list of sources from which the Kubelet allows pods to use of host network. [default=\"*\"]")
fs.StringSliceVar(&s.HostPIDSources, "host-pid-sources", s.HostPIDSources, "Comma-separated list of sources from which the Kubelet allows pods to use the host pid namespace. [default=\"*\"]")
fs.StringSliceVar(&s.HostIPCSources, "host-ipc-sources", s.HostIPCSources, "Comma-separated list of sources from which the Kubelet allows pods to use the host ipc namespace. [default=\"*\"]")
fs.Int32Var(&s.RegistryPullQPS, "registry-qps", s.RegistryPullQPS, "If > 0, limit registry pull QPS to this value. If 0, unlimited. [default=5.0]")
fs.Int32Var(&s.RegistryBurst, "registry-burst", s.RegistryBurst, "Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry-qps. Only used if --registry-qps > 0")
fs.Int32Var(&s.EventRecordQPS, "event-qps", s.EventRecordQPS, "If > 0, limit event creations per second to this value. If 0, unlimited.")
fs.Int32Var(&s.EventBurst, "event-burst", s.EventBurst, "Maximum size of a bursty event records, temporarily allows event records to burst to this number, while still not exceeding event-qps. Only used if --event-qps > 0")
fs.BoolVar(&s.RunOnce, "runonce", s.RunOnce, "If true, exit after spawning pods from local manifests or remote urls. Exclusive with --api-servers, and --enable-server")
fs.BoolVar(&s.EnableDebuggingHandlers, "enable-debugging-handlers", s.EnableDebuggingHandlers, "Enables server endpoints for log collection and local running of containers and commands")
fs.DurationVar(&s.MinimumGCAge.Duration, "minimum-container-ttl-duration", s.MinimumGCAge.Duration, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'")
fs.MarkDeprecated("minimum-container-ttl-duration", "Use --eviction-hard or --eviction-soft instead. Will be removed in a future version.")
fs.Int32Var(&s.MaxPerPodContainerCount, "maximum-dead-containers-per-container", s.MaxPerPodContainerCount, "Maximum number of old instances to retain per container. Each container takes up some disk space. Default: 1.")
fs.MarkDeprecated("maximum-dead-containers-per-container", "Use --eviction-hard or --eviction-soft instead. Will be removed in a future version.")
fs.Int32Var(&s.MaxContainerCount, "maximum-dead-containers", s.MaxContainerCount, "Maximum number of old instances of containers to retain globally. Each container takes up some disk space. To disable, set to a negative number. Default: -1.")
fs.MarkDeprecated("maximum-dead-containers", "Use --eviction-hard or --eviction-soft instead. Will be removed in a future version.")
fs.Int32Var(&s.CAdvisorPort, "cadvisor-port", s.CAdvisorPort, "The port of the localhost cAdvisor endpoint")
fs.Int32Var(&s.HealthzPort, "healthz-port", s.HealthzPort, "The port of the localhost healthz endpoint")
fs.Var(componentconfig.IPVar{Val: &s.HealthzBindAddress}, "healthz-bind-address", "The IP address for the healthz server to serve on, defaulting to 127.0.0.1 (set to 0.0.0.0 for all interfaces)")
fs.Int32Var(&s.OOMScoreAdj, "oom-score-adj", s.OOMScoreAdj, "The oom-score-adj value for kubelet process. Values must be within the range [-1000, 1000]")
fs.BoolVar(&s.RegisterNode, "register-node", s.RegisterNode, "Register the node with the apiserver (defaults to true if --api-servers is set)")
fs.StringVar(&s.ClusterDomain, "cluster-domain", s.ClusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.StringVar(&s.MasterServiceNamespace, "master-service-namespace", s.MasterServiceNamespace, "The namespace from which the kubernetes master services should be injected into pods")
fs.StringVar(&s.ClusterDNS, "cluster-dns", s.ClusterDNS, "IP address for a cluster DNS server. This value is used for containers' DNS server in case of Pods with \"dnsPolicy=ClusterFirst\"")
fs.DurationVar(&s.StreamingConnectionIdleTimeout.Duration, "streaming-connection-idle-timeout", s.StreamingConnectionIdleTimeout.Duration, "Maximum time a streaming connection can be idle before the connection is automatically closed. 0 indicates no timeout. Example: '5m'")
fs.DurationVar(&s.NodeStatusUpdateFrequency.Duration, "node-status-update-frequency", s.NodeStatusUpdateFrequency.Duration, "Specifies how often kubelet posts node status to master. Note: be cautious when changing the constant, it must work with nodeMonitorGracePeriod in nodecontroller. Default: 10s")
s.NodeLabels = make(map[string]string)
bindableNodeLabels := utilconfig.ConfigurationMap(s.NodeLabels)
fs.Var(&bindableNodeLabels, "node-labels", "<Warning: Alpha feature> Labels to add when registering the node in the cluster. Labels must be key=value pairs separated by ','.")
fs.DurationVar(&s.ImageMinimumGCAge.Duration, "minimum-image-ttl-duration", s.ImageMinimumGCAge.Duration, "Minimum age for an unused image before it is garbage collected. Examples: '300ms', '10s' or '2h45m'. Default: '2m'")
fs.Int32Var(&s.ImageGCHighThresholdPercent, "image-gc-high-threshold", s.ImageGCHighThresholdPercent, "The percent of disk usage after which image garbage collection is always run. Default: 90%")
fs.Int32Var(&s.ImageGCLowThresholdPercent, "image-gc-low-threshold", s.ImageGCLowThresholdPercent, "The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Default: 80%")
fs.Int32Var(&s.LowDiskSpaceThresholdMB, "low-diskspace-threshold-mb", s.LowDiskSpaceThresholdMB, "The absolute free disk space, in MB, to maintain. When disk space falls below this threshold, new pods would be rejected. Default: 256")
fs.DurationVar(&s.VolumeStatsAggPeriod.Duration, "volume-stats-agg-period", s.VolumeStatsAggPeriod.Duration, "Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes. To disable volume calculations, set to 0. Default: '1m'")
fs.StringVar(&s.NetworkPluginName, "network-plugin", s.NetworkPluginName, "<Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle")
fs.StringVar(&s.NetworkPluginDir, "network-plugin-dir", s.NetworkPluginDir, "<Warning: Alpha feature> The full path of the directory in which to search for network plugins or CNI config")
fs.StringVar(&s.CNIConfDir, "cni-conf-dir", s.CNIConfDir, "<Warning: Alpha feature> The full path of the directory in which to search for CNI config files. Default: /etc/cni/net.d")
fs.StringVar(&s.CNIBinDir, "cni-bin-dir", s.CNIBinDir, "<Warning: Alpha feature> The full path of the directory in which to search for CNI plugin binaries. Default: /opt/cni/bin")
fs.Int32Var(&s.NetworkPluginMTU, "network-plugin-mtu", s.NetworkPluginMTU, "<Warning: Alpha feature> The MTU to be passed to the network plugin, to override the default. Set to 0 to use the default 1460 MTU.")
fs.StringVar(&s.VolumePluginDir, "volume-plugin-dir", s.VolumePluginDir, "<Warning: Alpha feature> The full path of the directory in which to search for additional third party volume plugins")
fs.StringVar(&s.CloudProvider, "cloud-provider", s.CloudProvider, "The provider for cloud services. By default, kubelet will attempt to auto-detect the cloud provider. Specify empty string for running with no cloud provider. [default=auto-detect]")
fs.StringVar(&s.CloudConfigFile, "cloud-config", s.CloudConfigFile, "The path to the cloud provider configuration file. Empty string for no configuration file.")
fs.StringVar(&s.FeatureGates, "feature-gates", s.FeatureGates, "A set of key=value pairs that describe feature gates for alpha/experimental features. "+
"Options are:\n"+strings.Join(utilconfig.DefaultFeatureGate.KnownFeatures(), "\n"))
fs.StringVar(&s.KubeletCgroups, "resource-container", s.KubeletCgroups, "Optional absolute name of the resource-only container to create and run the Kubelet in.")
fs.MarkDeprecated("resource-container", "Use --kubelet-cgroups instead. Will be removed in a future version.")
fs.StringVar(&s.KubeletCgroups, "kubelet-cgroups", s.KubeletCgroups, "Optional absolute name of cgroups to create and run the Kubelet in.")
fs.StringVar(&s.SystemCgroups, "system-container", s.SystemCgroups, "Optional resource-only container in which to place all non-kernel processes that are not already in a container. Empty for no container. Rolling back the flag requires a reboot. (Default: \"\").")
fs.MarkDeprecated("system-container", "Use --system-cgroups instead. Will be removed in a future version.")
fs.StringVar(&s.SystemCgroups, "system-cgroups", s.SystemCgroups, "Optional absolute name of cgroups in which to place all non-kernel processes that are not already inside a cgroup under `/`. Empty for no container. Rolling back the flag requires a reboot. (Default: \"\").")
fs.BoolVar(&s.ExperimentalCgroupsPerQOS, "experimental-cgroups-per-qos", s.ExperimentalCgroupsPerQOS, "Enable creation of QoS cgroup hierarchy, if true top level QoS and pod cgroups are created.")
fs.StringVar(&s.CgroupDriver, "cgroup-driver", s.CgroupDriver, "Driver that the kubelet uses to manipulate cgroups on the host. Possible values: 'cgroupfs', 'systemd'")
fs.StringVar(&s.CgroupRoot, "cgroup-root", s.CgroupRoot, "Optional root cgroup to use for pods. This is handled by the container runtime on a best effort basis. Default: '', which means use the container runtime default.")
fs.StringVar(&s.ContainerRuntime, "container-runtime", s.ContainerRuntime, "The container runtime to use. Possible values: 'docker', 'rkt'. Default: 'docker'.")
fs.DurationVar(&s.RuntimeRequestTimeout.Duration, "runtime-request-timeout", s.RuntimeRequestTimeout.Duration, "Timeout of all runtime requests except long running request - pull, logs, exec and attach. When timeout exceeded, kubelet will cancel the request, throw out an error and retry later. Default: 2m0s")
fs.StringVar(&s.LockFilePath, "lock-file", s.LockFilePath, "<Warning: Alpha feature> The path to file for kubelet to use as a lock file.")
fs.BoolVar(&s.ExitOnLockContention, "exit-on-lock-contention", s.ExitOnLockContention, "Whether kubelet should exit upon lock-file contention.")
fs.StringVar(&s.RktPath, "rkt-path", s.RktPath, "Path of rkt binary. Leave empty to use the first rkt in $PATH. Only used if --container-runtime='rkt'.")
fs.StringVar(&s.ExperimentalMounterPath, "experimental-mounter-path", s.ExperimentalMounterPath, "[Experimental] Path of mounter binary. Leave empty to use the default mount.")
fs.StringVar(&s.RktAPIEndpoint, "rkt-api-endpoint", s.RktAPIEndpoint, "The endpoint of the rkt API service to communicate with. Only used if --container-runtime='rkt'.")
fs.StringVar(&s.RktStage1Image, "rkt-stage1-image", s.RktStage1Image, "image to use as stage1. Local paths and http/https URLs are supported. If empty, the 'stage1.aci' in the same directory as '--rkt-path' will be used.")
fs.MarkDeprecated("rkt-stage1-image", "Will be removed in a future version. The default stage1 image will be specified by the rkt configurations, see https://github.com/coreos/rkt/blob/master/Documentation/configuration.md for more details.")
fs.StringVar(&s.HairpinMode, "hairpin-mode", s.HairpinMode, "How should the kubelet setup hairpin NAT. This allows endpoints of a Service to loadbalance back to themselves if they should try to access their own Service. Valid values are \"promiscuous-bridge\", \"hairpin-veth\" and \"none\".")
fs.BoolVar(&s.BabysitDaemons, "babysit-daemons", s.BabysitDaemons, "If true, the node has babysitter process monitoring docker and kubelet.")
fs.MarkDeprecated("babysit-daemons", "Will be removed in a future version.")
fs.Int32Var(&s.MaxPods, "max-pods", s.MaxPods, "Number of Pods that can run on this Kubelet.")
fs.Int32Var(&s.NvidiaGPUs, "experimental-nvidia-gpus", s.NvidiaGPUs, "Number of NVIDIA GPU devices on this node. Only 0 (default) and 1 are currently supported.")
fs.StringVar(&s.DockerExecHandlerName, "docker-exec-handler", s.DockerExecHandlerName, "Handler to use when executing a command in a container. Valid values are 'native' and 'nsenter'. Defaults to 'native'.")
fs.StringVar(&s.NonMasqueradeCIDR, "non-masquerade-cidr", s.NonMasqueradeCIDR, "Traffic to IPs outside this range will use IP masquerade.")
fs.StringVar(&s.PodCIDR, "pod-cidr", "", "The CIDR to use for pod IP addresses, only used in standalone mode. In cluster mode, this is obtained from the master.")
fs.StringVar(&s.ResolverConfig, "resolv-conf", s.ResolverConfig, "Resolver configuration file used as the basis for the container DNS resolution configuration.")
fs.BoolVar(&s.CPUCFSQuota, "cpu-cfs-quota", s.CPUCFSQuota, "Enable CPU CFS quota enforcement for containers that specify CPU limits")
fs.BoolVar(&s.EnableControllerAttachDetach, "enable-controller-attach-detach", s.EnableControllerAttachDetach, "Enables the Attach/Detach controller to manage attachment/detachment of volumes scheduled to this node, and disables kubelet from executing any attach/detach operations")
fs.BoolVar(&s.MakeIPTablesUtilChains, "make-iptables-util-chains", s.MakeIPTablesUtilChains, "If true, kubelet will ensure iptables utility rules are present on host.")
fs.Int32Var(&s.IPTablesMasqueradeBit, "iptables-masquerade-bit", s.IPTablesMasqueradeBit, "The bit of the fwmark space to mark packets for SNAT. Must be within the range [0, 31]. Please match this parameter with corresponding parameter in kube-proxy.")
fs.Int32Var(&s.IPTablesDropBit, "iptables-drop-bit", s.IPTablesDropBit, "The bit of the fwmark space to mark packets for dropping. Must be within the range [0, 31].")
fs.StringSliceVar(&s.AllowedUnsafeSysctls, "experimental-allowed-unsafe-sysctls", s.AllowedUnsafeSysctls, "Comma-separated whitelist of unsafe sysctls or unsafe sysctl patterns (ending in *). Use these at your own risk.")
// Flags intended for testing, not recommended used in production environments.
fs.BoolVar(&s.ReallyCrashForTesting, "really-crash-for-testing", s.ReallyCrashForTesting, "If true, when panics occur crash. Intended for testing.")
fs.Float64Var(&s.ChaosChance, "chaos-chance", s.ChaosChance, "If > 0.0, introduce random client errors and latency. Intended for testing. [default=0.0]")
fs.BoolVar(&s.Containerized, "containerized", s.Containerized, "Experimental support for running kubelet in a container. Intended for testing. [default=false]")
fs.Int64Var(&s.MaxOpenFiles, "max-open-files", s.MaxOpenFiles, "Number of files that can be opened by Kubelet process. [default=1000000]")
fs.BoolVar(&s.ReconcileCIDR, "reconcile-cidr", s.ReconcileCIDR, "Reconcile node CIDR with the CIDR specified by the API server. This flag has no function anymore.")
fs.MarkDeprecated("reconcile-cidr", "The old --configure-cbr0 networking mode has been removed, so this flag has no function anymore. Will be removed in v1.6.")
fs.Var(&s.SystemReserved, "system-reserved", "A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for non-kubernetes components. Currently only cpu and memory are supported. See http://kubernetes.io/docs/user-guide/compute-resources for more detail. [default=none]")
fs.Var(&s.KubeReserved, "kube-reserved", "A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for kubernetes system components. Currently only cpu and memory are supported. See http://kubernetes.io/docs/user-guide/compute-resources for more detail. [default=none]")
fs.BoolVar(&s.RegisterSchedulable, "register-schedulable", s.RegisterSchedulable, "Register the node as schedulable. Won't have any effect if register-node is false. [default=true]")
fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "Content type of requests sent to apiserver.")
fs.Int32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
fs.BoolVar(&s.SerializeImagePulls, "serialize-image-pulls", s.SerializeImagePulls, "Pull images one at a time. We recommend *not* changing the default value on nodes that run docker daemon with version < 1.9 or an Aufs storage backend. Issue #10959 has more details. [default=true]")
fs.DurationVar(&s.OutOfDiskTransitionFrequency.Duration, "outofdisk-transition-frequency", s.OutOfDiskTransitionFrequency.Duration, "Duration for which the kubelet has to wait before transitioning out of out-of-disk node condition status. Default: 5m0s")
fs.StringVar(&s.NodeIP, "node-ip", s.NodeIP, "IP address of the node. If set, kubelet will use this IP address for the node")
fs.BoolVar(&s.EnableCustomMetrics, "enable-custom-metrics", s.EnableCustomMetrics, "Support for gathering custom metrics.")
fs.StringVar(&s.RuntimeCgroups, "runtime-cgroups", s.RuntimeCgroups, "Optional absolute name of cgroups to create and run the runtime in.")
fs.StringVar(&s.EvictionHard, "eviction-hard", s.EvictionHard, "A set of eviction thresholds (e.g. memory.available<1Gi) that if met would trigger a pod eviction.")
fs.StringVar(&s.EvictionSoft, "eviction-soft", s.EvictionSoft, "A set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a pod eviction.")
fs.StringVar(&s.EvictionSoftGracePeriod, "eviction-soft-grace-period", s.EvictionSoftGracePeriod, "A set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a pod eviction.")
fs.DurationVar(&s.EvictionPressureTransitionPeriod.Duration, "eviction-pressure-transition-period", s.EvictionPressureTransitionPeriod.Duration, "Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.")
fs.Int32Var(&s.EvictionMaxPodGracePeriod, "eviction-max-pod-grace-period", s.EvictionMaxPodGracePeriod, "Maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met. If negative, defer to pod specified value.")
fs.StringVar(&s.EvictionMinimumReclaim, "eviction-minimum-reclaim", s.EvictionMinimumReclaim, "A set of minimum reclaims (e.g. imagefs.available=2Gi) that describes the minimum amount of resource the kubelet will reclaim when performing a pod eviction if that resource is under pressure.")
fs.Int32Var(&s.PodsPerCore, "pods-per-core", s.PodsPerCore, "Number of Pods per core that can run on this Kubelet. The total number of Pods on this Kubelet cannot exceed max-pods, so max-pods will be used if this calculation results in a larger number of Pods allowed on the Kubelet. A value of 0 disables this limit.")
fs.BoolVar(&s.ProtectKernelDefaults, "protect-kernel-defaults", s.ProtectKernelDefaults, "Default kubelet behaviour for kernel tuning. If set, kubelet errors if any of kernel tunables is different than kubelet defaults.")
// CRI flags.
fs.BoolVar(&s.EnableCRI, "experimental-cri", s.EnableCRI, "[Experimental] Enable the Container Runtime Interface (CRI) integration. If --container-runtime is set to \"remote\", Kubelet will communicate with the runtime/image CRI server listening on the endpoint specified by --remote-runtime-endpoint/--remote-image-endpoint. If --container-runtime is set to \"docker\", Kubelet will launch a in-process CRI server on behalf of docker, and communicate over a default endpoint.")
fs.StringVar(&s.RemoteRuntimeEndpoint, "container-runtime-endpoint", s.RemoteRuntimeEndpoint, "[Experimental] The unix socket endpoint of remote runtime service. The endpoint is used only when CRI integration is enabled (--experimental-cri)")
fs.StringVar(&s.RemoteImageEndpoint, "image-service-endpoint", s.RemoteImageEndpoint, "[Experimental] The unix socket endpoint of remote image service. If not specified, it will be the same with container-runtime-endpoint by default. The endpoint is used only when CRI integration is enabled (--experimental-cri)")
fs.BoolVar(&s.ExperimentalCheckNodeCapabilitiesBeforeMount, "experimental-check-node-capabilities-before-mount", s.ExperimentalCheckNodeCapabilitiesBeforeMount, "[Experimental] if set true, the kubelet will check the underlying node for required componenets (binaries, etc.) before performing the mount")
}
func (s *SchedulerServer) addCoreFlags(fs *pflag.FlagSet) {
fs.IntVar(&s.port, "port", s.port, "The port that the scheduler's http service runs on")
fs.IPVar(&s.address, "address", s.address, "The IP address to serve on (set to 0.0.0.0 for all interfaces)")
fs.BoolVar(&s.enableProfiling, "profiling", s.enableProfiling, "Enable profiling via web interface host:port/debug/pprof/")
fs.StringSliceVar(&s.apiServerList, "api-servers", s.apiServerList, "List of Kubernetes API servers for publishing events, and reading pods and services. (ip:port), comma separated.")
fs.StringVar(&s.kubeconfig, "kubeconfig", s.kubeconfig, "Path to kubeconfig file with authorization and master location information used by the scheduler.")
fs.Float32Var(&s.kubeAPIQPS, "kube-api-qps", s.kubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
fs.IntVar(&s.kubeAPIBurst, "kube-api-burst", s.kubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
fs.StringSliceVar(&s.etcdServerList, "etcd-servers", s.etcdServerList, "List of etcd servers to watch (http://ip:port), comma separated.")
fs.BoolVar(&s.allowPrivileged, "allow-privileged", s.allowPrivileged, "Enable privileged containers in the kubelet (compare the same flag in the apiserver).")
fs.StringVar(&s.clusterDomain, "cluster-domain", s.clusterDomain, "Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains")
fs.IPVar(&s.clusterDNS, "cluster-dns", s.clusterDNS, "IP address for a cluster DNS server. If set, kubelet will configure all containers to use this for DNS resolution in addition to the host's DNS servers")
fs.StringVar(&s.staticPodsConfigPath, "static-pods-config", s.staticPodsConfigPath, "Path for specification of static pods. Path should point to dir containing the staticPods configuration files. Defaults to none.")
fs.StringVar(&s.mesosMaster, "mesos-master", s.mesosMaster, "Location of the Mesos master. The format is a comma-delimited list of of hosts like zk://host1:port,host2:port/mesos. If using ZooKeeper, pay particular attention to the leading zk:// and trailing /mesos! If not using ZooKeeper, standard URLs like http://localhost are also acceptable.")
fs.StringVar(&s.mesosUser, "mesos-user", s.mesosUser, "Mesos user for this framework, defaults to root.")
fs.StringSliceVar(&s.frameworkRoles, "mesos-framework-roles", s.frameworkRoles, "Mesos framework roles that the scheduler receives offers for. Currently only \"*\" and optionally one additional role are supported.")
fs.StringSliceVar(&s.defaultPodRoles, "mesos-default-pod-roles", s.defaultPodRoles, "Roles that will be used to launch pods having no "+meta.RolesKey+" label.")
fs.StringVar(&s.mesosAuthPrincipal, "mesos-authentication-principal", s.mesosAuthPrincipal, "Mesos authentication principal.")
fs.StringVar(&s.mesosAuthSecretFile, "mesos-authentication-secret-file", s.mesosAuthSecretFile, "Mesos authentication secret file.")
fs.StringVar(&s.mesosAuthProvider, "mesos-authentication-provider", s.mesosAuthProvider, fmt.Sprintf("Authentication provider to use, default is SASL that supports mechanisms: %+v", mech.ListSupported()))
fs.StringVar(&s.dockerCfgPath, "dockercfg-path", s.dockerCfgPath, "Path to a dockercfg file that will be used by the docker instance of the minions.")
fs.StringVar(&s.mesosCgroupPrefix, "mesos-cgroup-prefix", s.mesosCgroupPrefix, "The cgroup prefix concatenated with MESOS_DIRECTORY must give the executor cgroup set by Mesos")
fs.Var(&s.mesosExecutorCPUs, "mesos-executor-cpus", "Initial CPU shares to allocate for each Mesos executor container.")
fs.Var(&s.mesosExecutorMem, "mesos-executor-mem", "Initial memory (MB) to allocate for each Mesos executor container.")
fs.BoolVar(&s.checkpoint, "checkpoint", s.checkpoint, "Enable/disable checkpointing for the kubernetes-mesos framework.")
fs.Float64Var(&s.failoverTimeout, "failover-timeout", s.failoverTimeout, fmt.Sprintf("Framework failover timeout, in sec."))
fs.BoolVar(&s.generateTaskDiscovery, "mesos-generate-task-discovery", s.generateTaskDiscovery, "Enable/disable generation of DiscoveryInfo for Mesos tasks.")
fs.UintVar(&s.driverPort, "driver-port", s.driverPort, "Port that the Mesos scheduler driver process should listen on.")
fs.StringVar(&s.hostnameOverride, "hostname-override", s.hostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.")
fs.Int64Var(&s.reconcileInterval, "reconcile-interval", s.reconcileInterval, "Interval at which to execute task reconciliation, in sec. Zero disables.")
fs.DurationVar(&s.reconcileCooldown, "reconcile-cooldown", s.reconcileCooldown, "Minimum rest period between task reconciliation operations.")
fs.StringVar(&s.schedulerConfigFileName, "scheduler-config", s.schedulerConfigFileName, "An ini-style configuration file with low-level scheduler settings.")
fs.BoolVar(&s.graceful, "graceful", s.graceful, "Indicator of a graceful failover, intended for internal use only.")
fs.BoolVar(&s.ha, "ha", s.ha, "Run the scheduler in high availability mode with leader election. All peers should be configured exactly the same.")
fs.StringVar(&s.frameworkName, "framework-name", s.frameworkName, "The framework name to register with Mesos.")
fs.StringVar(&s.frameworkStoreURI, "framework-store-uri", s.frameworkStoreURI, "Where the framework should store metadata, either in Zookeeper (zk://host:port/path) or in etcd (etcd://path).")
fs.StringVar(&s.frameworkWebURI, "framework-weburi", s.frameworkWebURI, "A URI that points to a web-based interface for interacting with the framework.")
fs.StringVar(&s.advertisedAddress, "advertised-address", s.advertisedAddress, "host:port address that is advertised to clients. May be used to construct artifact download URIs.")
fs.IPVar(&s.serviceAddress, "service-address", s.serviceAddress, "The service portal IP address that the scheduler should register with (if unset, chooses randomly)")
fs.Var(&s.defaultContainerCPULimit, "default-container-cpu-limit", "Containers without a CPU resource limit are admitted this much CPU shares")
fs.Var(&s.defaultContainerMemLimit, "default-container-mem-limit", "Containers without a memory resource limit are admitted this much amount of memory in MB")
fs.BoolVar(&s.containPodResources, "contain-pod-resources", s.containPodResources, "Reparent pod containers into mesos cgroups; disable if you're having strange mesos/docker/systemd interactions.")
fs.DurationVar(&s.nodeRelistPeriod, "node-monitor-period", s.nodeRelistPeriod, "Period between relisting of all nodes from the apiserver.")
fs.BoolVar(&s.useHostPortEndpoints, "host-port-endpoints", s.useHostPortEndpoints, "Map service endpoints to hostIP:hostPort instead of podIP:containerPort. Default true.")
fs.IntVar(&s.executorLogV, "executor-logv", s.executorLogV, "Logging verbosity of spawned minion and executor processes.")
fs.BoolVar(&s.executorBindall, "executor-bindall", s.executorBindall, "When true will set -address of the executor to 0.0.0.0.")
fs.DurationVar(&s.executorSuicideTimeout, "executor-suicide-timeout", s.executorSuicideTimeout, "Executor self-terminates after this period of inactivity. Zero disables suicide watch.")
fs.DurationVar(&s.launchGracePeriod, "mesos-launch-grace-period", s.launchGracePeriod, "Launch grace period after which launching tasks will be cancelled. Zero disables launch cancellation.")
fs.StringVar(&s.sandboxOverlay, "mesos-sandbox-overlay", s.sandboxOverlay, "Path to an archive (tar.gz, tar.bz2 or zip) extracted into the sandbox.")
fs.BoolVar(&s.proxyBindall, "proxy-bindall", s.proxyBindall, "When true pass -proxy-bindall to the executor.")
fs.BoolVar(&s.runProxy, "run-proxy", s.runProxy, "Run the kube-proxy as a side process of the executor.")
fs.StringVar(&s.proxyKubeconfig, "proxy-kubeconfig", s.proxyKubeconfig, "Path to kubeconfig file with authorization and master location information used by the proxy.")
fs.IntVar(&s.proxyLogV, "proxy-logv", s.proxyLogV, "Logging verbosity of spawned minion proxy processes.")
fs.StringVar(&s.proxyMode, "proxy-mode", s.proxyMode, "Which proxy mode to use: 'userspace' (older) or 'iptables' (faster). If the iptables proxy is selected, regardless of how, but the system's kernel or iptables versions are insufficient, this always falls back to the userspace proxy.")
fs.StringVar(&s.minionPathOverride, "minion-path-override", s.minionPathOverride, "Override the PATH in the environment of the minion sub-processes.")
fs.Var(resource.NewQuantityFlagValue(&s.minionLogMaxSize), "minion-max-log-size", "Maximum log file size for the executor and proxy before rotation")
fs.IntVar(&s.minionLogMaxAgeInDays, "minion-max-log-age", s.minionLogMaxAgeInDays, "Maximum log file age of the executor and proxy in days")
fs.IntVar(&s.minionLogMaxBackups, "minion-max-log-backups", s.minionLogMaxBackups, "Maximum log file backups of the executor and proxy to keep after rotation")
fs.StringSliceVar(&s.kubeletApiServerList, "kubelet-api-servers", s.kubeletApiServerList, "List of Kubernetes API servers kubelet will use. (ip:port), comma separated. If unspecified it defaults to the value of --api-servers.")
fs.StringVar(&s.kubeletRootDirectory, "kubelet-root-dir", s.kubeletRootDirectory, "Directory path for managing kubelet files (volume mounts,etc). Defaults to executor sandbox.")
fs.StringVar(&s.kubeletDockerEndpoint, "kubelet-docker-endpoint", s.kubeletDockerEndpoint, "If non-empty, kubelet will use this for the docker endpoint to communicate with.")
fs.StringVar(&s.kubeletPodInfraContainerImage, "kubelet-pod-infra-container-image", s.kubeletPodInfraContainerImage, "The image whose network/ipc namespaces containers in each pod will use.")
fs.UintVar(&s.kubeletCadvisorPort, "kubelet-cadvisor-port", s.kubeletCadvisorPort, "The port of the kubelet's local cAdvisor endpoint")
fs.StringVar(&s.kubeletHostNetworkSources, "kubelet-host-network-sources", s.kubeletHostNetworkSources, "Comma-separated list of sources from which the Kubelet allows pods to use of host network. For all sources use \"*\" [default=\"file\"]")
fs.DurationVar(&s.kubeletSyncFrequency, "kubelet-sync-frequency", s.kubeletSyncFrequency, "Max period between synchronizing running containers and config")
fs.StringVar(&s.kubeletNetworkPluginName, "kubelet-network-plugin", s.kubeletNetworkPluginName, "<Warning: Alpha feature> The name of the network plugin to be invoked for various events in kubelet/pod lifecycle")
fs.BoolVar(&s.kubeletEnableDebuggingHandlers, "kubelet-enable-debugging-handlers", s.kubeletEnableDebuggingHandlers, "Enables kubelet endpoints for log collection and local running of containers and commands")
fs.StringVar(&s.kubeletKubeconfig, "kubelet-kubeconfig", s.kubeletKubeconfig, "Path to kubeconfig file with authorization and master location information used by the kubelet.")
fs.IntVar(&s.conntrackMax, "conntrack-max", s.conntrackMax, "Maximum number of NAT connections to track on agent nodes (0 to leave as-is)")
fs.IntVar(&s.conntrackTCPTimeoutEstablished, "conntrack-tcp-timeout-established", s.conntrackTCPTimeoutEstablished, "Idle timeout for established TCP connections on agent nodes (0 to leave as-is)")
//TODO(jdef) support this flag once we have a better handle on mesos-dns and k8s DNS integration
//fs.StringVar(&s.HADomain, "ha-domain", s.HADomain, "Domain of the HA scheduler service, only used in HA mode. If specified may be used to construct artifact download URIs.")
}