Page last modified on November 15, 2018 at 2:05 PM PST by Initial commit (Page history)
The Kubernetes scheduler is a policy-rich, topology-aware, workload-specific function that significantly impacts availability, performance, and capacity. The scheduler needs to take into account individual and collective resource requirements, quality of service requirements, hardware/software/policy constraints, affinity and anti-affinity specifications, data locality, inter-workload interference, deadlines, and so on. Workload-specific requirements will be exposed through the API as necessary.
kube-scheduler [flags]
| --address string Default: "0.0.0.0" | |
| DEPRECATED: the IP address on which to listen for the --port port (set to 0.0.0.0 for all IPv4 interfaces and :: for all IPv6 interfaces). See --bind-address instead. | |
| --algorithm-provider string | |
| DEPRECATED: the scheduling algorithm provider to use, one of: ClusterAutoscalerProvider | DefaultProvider | |
| --azure-container-registry-config string | |
| Path to the file containing Azure container registry configuration information. | |
| --config string | |
| The path to the configuration file. Flags override values in this file. | |
| --contention-profiling | |
| DEPRECATED: enable lock contention profiling, if profiling is enabled | |
| --feature-gates mapStringBool | |
| A set of key=value pairs that describe feature gates for alpha/experimental features. Options are: APIListChunking=true|false (BETA - default=true) APIResponseCompression=true|false (ALPHA - default=false) AdvancedAuditing=true|false (BETA - default=true) AllAlpha=true|false (ALPHA - default=false) AppArmor=true|false (BETA - default=true) AttachVolumeLimit=true|false (ALPHA - default=false) BalanceAttachedNodeVolumes=true|false (ALPHA - default=false) BlockVolume=true|false (ALPHA - default=false) CPUManager=true|false (BETA - default=true) CRIContainerLogRotation=true|false (BETA - default=true) CSIBlockVolume=true|false (ALPHA - default=false) CSIPersistentVolume=true|false (BETA - default=true) CustomPodDNS=true|false (BETA - default=true) CustomResourceSubresources=true|false (BETA - default=true) CustomResourceValidation=true|false (BETA - default=true) DebugContainers=true|false (ALPHA - default=false) DevicePlugins=true|false (BETA - default=true) DynamicKubeletConfig=true|false (BETA - default=true) DynamicProvisioningScheduling=true|false (ALPHA - default=false) EnableEquivalenceClassCache=true|false (ALPHA - default=false) ExpandInUsePersistentVolumes=true|false (ALPHA - default=false) ExpandPersistentVolumes=true|false (BETA - default=true) ExperimentalCriticalPodAnnotation=true|false (ALPHA - default=false) ExperimentalHostUserNamespaceDefaulting=true|false (BETA - default=false) GCERegionalPersistentDisk=true|false (BETA - default=true) HugePages=true|false (BETA - default=true) HyperVContainer=true|false (ALPHA - default=false) Initializers=true|false (ALPHA - default=false) KubeletPluginsWatcher=true|false (ALPHA - default=false) LocalStorageCapacityIsolation=true|false (BETA - default=true) MountContainers=true|false (ALPHA - default=false) MountPropagation=true|false (BETA - default=true) PersistentLocalVolumes=true|false (BETA - default=true) PodPriority=true|false (BETA - default=true) PodReadinessGates=true|false (BETA - default=false) PodShareProcessNamespace=true|false (ALPHA - default=false) QOSReserved=true|false (ALPHA - default=false) ReadOnlyAPIDataVolumes=true|false (DEPRECATED - default=true) ResourceLimitsPriorityFunction=true|false (ALPHA - default=false) ResourceQuotaScopeSelectors=true|false (ALPHA - default=false) RotateKubeletClientCertificate=true|false (BETA - default=true) RotateKubeletServerCertificate=true|false (ALPHA - default=false) RunAsGroup=true|false (ALPHA - default=false) ScheduleDaemonSetPods=true|false (ALPHA - default=false) ServiceNodeExclusion=true|false (ALPHA - default=false) ServiceProxyAllowExternalIPs=true|false (DEPRECATED - default=false) StorageObjectInUseProtection=true|false (default=true) StreamingProxyRedirects=true|false (BETA - default=true) SupportIPVSProxyMode=true|false (default=true) SupportPodPidsLimit=true|false (ALPHA - default=false) Sysctls=true|false (BETA - default=true) TaintBasedEvictions=true|false (ALPHA - default=false) TaintNodesByCondition=true|false (ALPHA - default=false) TokenRequest=true|false (ALPHA - default=false) TokenRequestProjection=true|false (ALPHA - default=false) VolumeScheduling=true|false (BETA - default=true) VolumeSubpath=true|false (default=true) VolumeSubpathEnvExpansion=true|false (ALPHA - default=false) |
|
| -h, --help | |
| help for kube-scheduler | |
| --kube-api-burst int32 Default: 100 | |
| DEPRECATED: burst to use while talking with kubernetes apiserver | |
| --kube-api-content-type string Default: "application/vnd.kubernetes.protobuf" | |
| DEPRECATED: content type of requests sent to apiserver. | |
| --kube-api-qps float32 Default: 50 | |
| DEPRECATED: QPS to use while talking with kubernetes apiserver | |
| --kubeconfig string | |
| DEPRECATED: path to kubeconfig file with authorization and master location information. | |
| --leader-elect Default: true | |
| Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability. | |
| --leader-elect-lease-duration duration Default: 15s | |
| The duration that non-leader candidates will wait after observing a leadership renewal until attempting to acquire leadership of a led but unrenewed leader slot. This is effectively the maximum duration that a leader can be stopped before it is replaced by another candidate. This is only applicable if leader election is enabled. | |
| --leader-elect-renew-deadline duration Default: 10s | |
| The interval between attempts by the acting master to renew a leadership slot before it stops leading. This must be less than or equal to the lease duration. This is only applicable if leader election is enabled. | |
| --leader-elect-resource-lock endpoints Default: "endpoints" | |
| The type of resource object that is used for locking during leader election. Supported options are endpoints (default) and `configmaps`. | |
| --leader-elect-retry-period duration Default: 2s | |
| The duration the clients should wait between attempting acquisition and renewal of a leadership. This is only applicable if leader election is enabled. | |
| --lock-object-name string Default: "kube-scheduler" | |
| DEPRECATED: define the name of the lock object. | |
| --lock-object-namespace string Default: "kube-system" | |
| DEPRECATED: define the namespace of the lock object. | |
| --log-flush-frequency duration Default: 5s | |
| Maximum number of seconds between log flushes | |
| --master string | |
| The address of the Kubernetes API server (overrides any value in kubeconfig) | |
| --policy-config-file string | |
| DEPRECATED: file with scheduler policy configuration. This file is used if policy ConfigMap is not provided or --use-legacy-policy-config=true | |
| --policy-configmap string | |
| DEPRECATED: name of the ConfigMap object that contains scheduler's policy configuration. It must exist in the system namespace before scheduler initialization if --use-legacy-policy-config=false. The config must be provided as the value of an element in 'Data' map with the key='policy.cfg' | |
| --policy-configmap-namespace string Default: "kube-system" | |
| DEPRECATED: the namespace where policy ConfigMap is located. The kube-system namespace will be used if this is not provided or is empty. | |
| --port int Default: 10251 | |
| DEPRECATED: the port on which to serve HTTP insecurely without authentication and authorization. If 0, don't serve HTTPS at all. See --secure-port instead. | |
| --profiling | |
| DEPRECATED: enable profiling via web interface host:port/debug/pprof/ | |
| --scheduler-name string Default: "default-scheduler" | |
| DEPRECATED: name of the scheduler, used to select which pods will be processed by this scheduler, based on pod's "spec.schedulerName". | |
| --use-legacy-policy-config | |
| DEPRECATED: when set to true, scheduler will ignore policy ConfigMap and uses policy config file | |
| --version version[=true] | |
| Print version information and quit | |
| --write-config-to string | |
| If set, write the configuration values to this file and exit. | |