Reference Documentation

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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
The IP address to serve on (set to for all IPv4 interfaces and :: for all IPv6 interfaces).
--algorithm-provider string
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.
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)
Accelerators=true|false (ALPHA - default=false)
AdvancedAuditing=true|false (BETA - default=true)
AllAlpha=true|false (ALPHA - default=false)
AppArmor=true|false (BETA - default=true)
BlockVolume=true|false (ALPHA - default=false)
CPUManager=true|false (BETA - default=true)
CRIContainerLogRotation=true|false (ALPHA - default=false)
CSIPersistentVolume=true|false (BETA - default=true)
CustomPodDNS=true|false (BETA - default=true)
CustomResourceSubresources=true|false (ALPHA - default=false)
CustomResourceValidation=true|false (BETA - default=true)
DebugContainers=true|false (ALPHA - default=false)
DevicePlugins=true|false (BETA - default=true)
DynamicKubeletConfig=true|false (ALPHA - default=false)
EnableEquivalenceClassCache=true|false (ALPHA - default=false)
ExpandPersistentVolumes=true|false (ALPHA - default=false)
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)
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 (ALPHA - default=false)
PodShareProcessNamespace=true|false (ALPHA - default=false)
ReadOnlyAPIDataVolumes=true|false (DEPRECATED - default=true)
ResourceLimitsPriorityFunction=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 (BETA - default=true)
StreamingProxyRedirects=true|false (BETA - default=true)
SupportIPVSProxyMode=true|false (BETA - default=true)
SupportPodPidsLimit=true|false (ALPHA - default=false)
TaintBasedEvictions=true|false (ALPHA - default=false)
TaintNodesByCondition=true|false (ALPHA - default=false)
TokenRequest=true|false (ALPHA - default=false)
VolumeScheduling=true|false (BETA - default=true)
VolumeSubpath=true|false (default=true)
-h, --help
help for kube-scheduler
--kube-api-burst int32     Default: 100
Burst to use while talking with kubernetes apiserver
--kube-api-content-type string     Default: "application/vnd.kubernetes.protobuf"
Content type of requests sent to apiserver.
--kube-api-qps float32     Default: 50
QPS to use while talking with kubernetes apiserver
--kubeconfig string
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"
Define the name of the lock object.
--lock-object-namespace string     Default: "kube-system"
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
File with scheduler policy configuration. This file is used if policy ConfigMap is not provided or --use-legacy-policy-config==true
--policy-configmap string
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
The namespace where policy ConfigMap is located. The system namespace will be used if this is not provided or is empty.
--port int32     Default: 10251
The port that the scheduler's http service runs on
Enable profiling via web interface host:port/debug/pprof/
--scheduler-name string     Default: "default-scheduler"
Name of the scheduler, used to select which pods will be processed by this scheduler, based on pod's "spec.SchedulerName".
When set to true, scheduler will ignore policy ConfigMap and uses policy config file
--version version[=true]
Print version information and quit


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