kube-scheduler Configuration (v1beta3)

    DefaultPreemptionArgs

    InterPodAffinityArgs

    InterPodAffinityArgs holds arguments used to configure the InterPodAffinity plugin.

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		InterPodAffinityArgs
    hardPodAffinityWeight [Required]
    int32    		HardPodAffinityWeight is the scoring weight for existing pods with a matching hard affinity to the incoming pod.

    KubeSchedulerConfiguration

    KubeSchedulerConfiguration configures a scheduler

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		KubeSchedulerConfiguration
    parallelism [Required]
    int32    		Parallelism defines the amount of parallelism in algorithms for scheduling a Pods. Must be greater than 0. Defaults to 16
    leaderElection [Required]
    		LeaderElection defines the configuration of leader election client.
    clientConnection [Required]
    ClientConnectionConfiguration    		ClientConnection specifies the kubeconfig file and client connection settings for the proxy server to use when communicating with the apiserver.
    DebuggingConfiguration [Required]
    		(Members of DebuggingConfiguration are embedded into this type.) DebuggingConfiguration holds configuration for Debugging related features TODO: We might wanna make this a substruct like Debugging componentbaseconfigv1alpha1.DebuggingConfiguration
    percentageOfNodesToScore [Required]
    int32    		PercentageOfNodesToScore is the percentage of all nodes that once found feasible for running a pod, the scheduler stops its search for more feasible nodes in the cluster. This helps improve scheduler’s performance. Scheduler always tries to find at least “minFeasibleNodesToFind” feasible nodes no matter what the value of this flag is. Example: if the cluster size is 500 nodes and the value of this flag is 30, then scheduler stops finding further feasible nodes once it finds 150 feasible ones. When the value is 0, default percentage (5%—50% based on the size of the cluster) of the nodes will be scored.
    podInitialBackoffSeconds [Required]
    int64    		PodInitialBackoffSeconds is the initial backoff for unschedulable pods. If specified, it must be greater than 0. If this value is null, the default value (1s) will be used.
    podMaxBackoffSeconds [Required]
    int64    		PodMaxBackoffSeconds is the max backoff for unschedulable pods. If specified, it must be greater than podInitialBackoffSeconds. If this value is null, the default value (10s) will be used.
    profiles [Required]
    []KubeSchedulerProfile    		Profiles are scheduling profiles that kube-scheduler supports. Pods can choose to be scheduled under a particular profile by setting its associated scheduler name. Pods that don’t specify any scheduler name are scheduled with the “default-scheduler” profile, if present here.
    extenders [Required]
    		Extenders are the list of scheduler extenders, each holding the values of how to communicate with the extender. These extenders are shared by all scheduler profiles.

    NodeAffinityArgs

    NodeAffinityArgs holds arguments to configure the NodeAffinity plugin.

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		NodeAffinityArgs
    addedAffinity
    		AddedAffinity is applied to all Pods additionally to the NodeAffinity specified in the PodSpec. That is, Nodes need to satisfy AddedAffinity AND .spec.NodeAffinity. AddedAffinity is empty by default (all Nodes match). When AddedAffinity is used, some Pods with affinity requirements that match a specific Node (such as Daemonset Pods) might remain unschedulable.

    NodeResourcesBalancedAllocationArgs

    NodeResourcesBalancedAllocationArgs holds arguments used to configure NodeResourcesBalancedAllocation plugin.

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		NodeResourcesBalancedAllocationArgs
    resources [Required]
    		Resources to be managed, the default is “cpu” and “memory” if not specified.

    NodeResourcesFitArgs

    NodeResourcesFitArgs holds arguments used to configure the NodeResourcesFit plugin.

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		NodeResourcesFitArgs
    ignoredResources [Required]
    []string    		IgnoredResources is the list of resources that NodeResources fit filter should ignore. This doesn’t apply to scoring.
    [Required]
    []string    		IgnoredResourceGroups defines the list of resource groups that NodeResources fit filter should ignore. e.g. if group is [“example.com”], it will ignore all resource names that begin with “example.com”, such as “example.com/aaa” and “example.com/bbb”. A resource group name can’t contain ‘/‘. This doesn’t apply to scoring.
    scoringStrategy [Required]
    		ScoringStrategy selects the node resource scoring strategy. The default strategy is LeastAllocated with an equal “cpu” and “memory” weight.

    PodTopologySpreadArgs

    PodTopologySpreadArgs holds arguments used to configure the PodTopologySpread plugin.

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		PodTopologySpreadArgs
    defaultConstraints
    		DefaultConstraints defines topology spread constraints to be applied to Pods that don’t define any in pod.spec.topologySpreadConstraints. .defaultConstraints[∗].labelSelectors must be empty, as they are deduced from the Pod’s membership to Services, ReplicationControllers, ReplicaSets or StatefulSets. When not empty, .defaultingType must be “List”.
    defaultingType
    PodTopologySpreadConstraintsDefaulting    		DefaultingType determines how .defaultConstraints are deduced. Can be one of “System” or “List”.
    • “System”: Use kubernetes defined constraints that spread Pods among Nodes and Zones.
    • “List”: Use constraints defined in .defaultConstraints.

    Defaults to “List” if feature gate DefaultPodTopologySpread is disabled and to “System” if enabled.

    VolumeBindingArgs

    VolumeBindingArgs holds arguments used to configure the VolumeBinding plugin.

    FieldDescription
    apiVersion
    string    		kubescheduler.config.k8s.io/v1beta3
    kind
    string    		VolumeBindingArgs
    bindTimeoutSeconds [Required]
    int64    		BindTimeoutSeconds is the timeout in seconds in volume binding operation. Value must be non-negative integer. The value zero indicates no waiting. If this value is nil, the default value (600) will be used.
    shape
    []UtilizationShapePoint    		Shape specifies the points defining the score function shape, which is used to score nodes based on the utilization of statically provisioned PVs. The utilization is calculated by dividing the total requested storage of the pod by the total capacity of feasible PVs on each node. Each point contains utilization (ranges from 0 to 100) and its associated score (ranges from 0 to 10). You can turn the priority by specifying different scores for different utilization numbers. The default shape points are: 1) 0 for 0 utilization 2) 10 for 100 utilization All points must be sorted in increasing order by utilization.

    Extender

    Appears in:

    Extender holds the parameters used to communicate with the extender. If a verb is unspecified/empty, it is assumed that the extender chose not to provide that extension.

    Appears in:

    ExtenderManagedResource describes the arguments of extended resources managed by an extender.

    FieldDescription
    name [Required]
    string    		Name is the extended resource name.
    ignoredByScheduler [Required]
    bool    		IgnoredByScheduler indicates whether kube-scheduler should ignore this resource when applying predicates.

    ExtenderTLSConfig

    Appears in:

    ExtenderTLSConfig contains settings to enable TLS with extender

    FieldDescription
    insecure [Required]
    bool    		Server should be accessed without verifying the TLS certificate. For testing only.
    serverName [Required]
    string    		ServerName is passed to the server for SNI and is used in the client to check server certificates against. If ServerName is empty, the hostname used to contact the server is used.
    certFile [Required]
    string    		Server requires TLS client certificate authentication
    keyFile [Required]
    string    		Server requires TLS client certificate authentication
    caFile [Required]
    string    		Trusted root certificates for server
    certData [Required]
    []byte    		CertData holds PEM-encoded bytes (typically read from a client certificate file). CertData takes precedence over CertFile
    keyData [Required]
    []byte    		KeyData holds PEM-encoded bytes (typically read from a client certificate key file). KeyData takes precedence over KeyFile
    caData [Required]
    []byte    		CAData holds PEM-encoded bytes (typically read from a root certificates bundle). CAData takes precedence over CAFile

    KubeSchedulerProfile

    Appears in:

    KubeSchedulerProfile is a scheduling profile.

    FieldDescription
    schedulerName [Required]
    string    		SchedulerName is the name of the scheduler associated to this profile. If SchedulerName matches with the pod’s “spec.schedulerName”, then the pod is scheduled with this profile.
    plugins [Required]
    Plugins    		Plugins specify the set of plugins that should be enabled or disabled. Enabled plugins are the ones that should be enabled in addition to the default plugins. Disabled plugins are any of the default plugins that should be disabled. When no enabled or disabled plugin is specified for an extension point, default plugins for that extension point will be used if there is any. If a QueueSort plugin is specified, the same QueueSort Plugin and PluginConfig must be specified for all profiles.
    pluginConfig [Required]
    		PluginConfig is an optional set of custom plugin arguments for each plugin. Omitting config args for a plugin is equivalent to using the default config for that plugin.

    Plugin

    Appears in:

    Plugin specifies a plugin name and its weight when applicable. Weight is used only for Score plugins.

    FieldDescription
    name [Required]
    string    		Name defines the name of plugin
    weight [Required]
    int32    		Weight defines the weight of plugin, only used for Score plugins.

    PluginConfig

    Appears in:

    PluginConfig specifies arguments that should be passed to a plugin at the time of initialization. A plugin that is invoked at multiple extension points is initialized once. Args can have arbitrary structure. It is up to the plugin to process these Args.

    FieldDescription
    name [Required]
    string    		Name defines the name of plugin being configured
    args [Required]
    		Args defines the arguments passed to the plugins at the time of initialization. Args can have arbitrary structure.

    PluginSet

    PluginSet specifies enabled and disabled plugins for an extension point. If an array is empty, missing, or nil, default plugins at that extension point will be used.

    FieldDescription
    enabled [Required]
    []Plugin    		Enabled specifies plugins that should be enabled in addition to default plugins. If the default plugin is also configured in the scheduler config file, the weight of plugin will be overridden accordingly. These are called after default plugins and in the same order specified here.
    disabled [Required]
    		Disabled specifies default plugins that should be disabled. When all default plugins need to be disabled, an array containing only one “∗” should be provided.

    Plugins

    Appears in:

    Plugins include multiple extension points. When specified, the list of plugins for a particular extension point are the only ones enabled. If an extension point is omitted from the config, then the default set of plugins is used for that extension point. Enabled plugins are called in the order specified here, after default plugins. If they need to be invoked before default plugins, default plugins must be disabled and re-enabled here in desired order.

    FieldDescription
    queueSort [Required]
    PluginSet    		QueueSort is a list of plugins that should be invoked when sorting pods in the scheduling queue.
    [Required]
    		PreFilter is a list of plugins that should be invoked at “PreFilter” extension point of the scheduling framework.
    filter [Required]
    PluginSet    		Filter is a list of plugins that should be invoked when filtering out nodes that cannot run the Pod.
    postFilter [Required]
    		PostFilter is a list of plugins that are invoked after filtering phase, but only when no feasible nodes were found for the pod.
    preScore [Required]
    PluginSet    		PreScore is a list of plugins that are invoked before scoring.
    score [Required]
    		Score is a list of plugins that should be invoked when ranking nodes that have passed the filtering phase.
    reserve [Required]
    PluginSet    		Reserve is a list of plugins invoked when reserving/unreserving resources after a node is assigned to run the pod.
    permit [Required]
    		Permit is a list of plugins that control binding of a Pod. These plugins can prevent or delay binding of a Pod.
    preBind [Required]
    PluginSet    		PreBind is a list of plugins that should be invoked before a pod is bound.
    bind [Required]
    		Bind is a list of plugins that should be invoked at “Bind” extension point of the scheduling framework. The scheduler call these plugins in order. Scheduler skips the rest of these plugins as soon as one returns success.
    postBind [Required]
    PluginSet    		PostBind is a list of plugins that should be invoked after a pod is successfully bound.
    multiPoint [Required]
    		MultiPoint is a simplified config section to enable plugins for all valid extension points. Plugins enabled through MultiPoint will automatically register for every individual extension point the plugin has implemented. Disabling a plugin through MultiPoint disables that behavior. The same is true for disabling “∗” through MultiPoint (no default plugins will be automatically registered). Plugins can still be disabled through their individual extension points.

    In terms of precedence, plugin config follows this basic hierarchy

    1. Specific extension points
    2. Explicitly configured MultiPoint plugins
    3. The set of default plugins, as MultiPoint plugins This implies that a higher precedence plugin will run first and overwrite any settings within MultiPoint. Explicitly user-configured plugins also take a higher precedence over default plugins. Within this hierarchy, an Enabled setting takes precedence over Disabled. For example, if a plugin is set in both multiPoint.Enabled and multiPoint.Disabled, the plugin will be enabled. Similarly, including multiPoint.Disabled = ‘∗’ and multiPoint.Enabled = pluginA will still register that specific plugin through MultiPoint. This follows the same behavior as all other extension point configurations.

    PodTopologySpreadConstraintsDefaulting

    (Alias of string)

    Appears in:

    PodTopologySpreadConstraintsDefaulting defines how to set default constraints for the PodTopologySpread plugin.

    RequestedToCapacityRatioParam

    Appears in:

    RequestedToCapacityRatioParam define RequestedToCapacityRatio parameters

    ResourceSpec

    Appears in:

    ResourceSpec represents a single resource.

    FieldDescription
    name [Required]
    string    		Name of the resource.
    weight [Required]
    int64    		Weight of the resource.

    Appears in:

    ScoringStrategy define ScoringStrategyType for node resource plugin

    FieldDescription
    type [Required]
    ScoringStrategyType    		Type selects which strategy to run.
    resources [Required]
    		Resources to consider when scoring. The default resource set includes “cpu” and “memory” with an equal weight. Allowed weights go from 1 to 100. Weight defaults to 1 if not specified or explicitly set to 0.
    requestedToCapacityRatio [Required]
    RequestedToCapacityRatioParam    		Arguments specific to RequestedToCapacityRatio strategy.

    ScoringStrategyType

    (Alias of string)

    Appears in:

    ScoringStrategyType the type of scoring strategy used in NodeResourcesFit plugin.

    UtilizationShapePoint

    Appears in:

    UtilizationShapePoint represents single point of priority function shape.

    FieldDescription
    utilization [Required]
    int32    		Utilization (x axis). Valid values are 0 to 100. Fully utilized node maps to 100.
    score [Required]
    int32    		Score assigned to given utilization (y axis). Valid values are 0 to 10.

    ClientConnectionConfiguration

    Appears in:

    ClientConnectionConfiguration contains details for constructing a client.

    FieldDescription
    kubeconfig [Required]
    string    		kubeconfig is the path to a KubeConfig file.
    acceptContentTypes [Required]
    string    		acceptContentTypes defines the Accept header sent by clients when connecting to a server, overriding the default value of ‘application/json’. This field will control all connections to the server used by a particular client.
    contentType [Required]
    string    		contentType is the content type used when sending data to the server from this client.
    qps [Required]
    float32    		qps controls the number of queries per second allowed for this connection.
    burst [Required]
    int32    		burst allows extra queries to accumulate when a client is exceeding its rate.

    DebuggingConfiguration

    Appears in:

    DebuggingConfiguration holds configuration for Debugging related features.

    FieldDescription
    enableProfiling [Required]
    bool    		enableProfiling enables profiling via web interface host:port/debug/pprof/
    enableContentionProfiling [Required]
    bool    		enableContentionProfiling enables lock contention profiling, if enableProfiling is true.

    FormatOptions

    Appears in:

    FormatOptions contains options for the different logging formats.

    FieldDescription
    json [Required]
    		[Experimental] JSON contains options for logging format “json”.

    JSONOptions

    Appears in:

    JSONOptions contains options for logging format “json”.

    FieldDescription
    splitStream [Required]
    bool    		[Experimental] SplitStream redirects error messages to stderr while info messages go to stdout, with buffering. The default is to write both to stdout, without buffering.
    infoBufferSize [Required]
    k8s.io/apimachinery/pkg/api/resource.QuantityValue    		[Experimental] InfoBufferSize sets the size of the info stream when using split streams. The default is zero, which disables buffering.

    LeaderElectionConfiguration

    Appears in:

    LeaderElectionConfiguration defines the configuration of leader election clients for components that can run with leader election enabled.

    LoggingConfiguration

    Appears in:

    LoggingConfiguration contains logging options Refer for more information.

    FieldDescription
    format [Required]
    string    		Format Flag specifies the structure of log messages. default value of format is text
    flushFrequency [Required]
    time.Duration    		Maximum number of seconds between log flushes. Ignored if the selected logging backend writes log messages without buffering.
    verbosity [Required]
    uint32    		Verbosity is the threshold that determines which log messages are logged. Default is zero which logs only the most important messages. Higher values enable additional messages. Error messages are always logged.
    vmodule [Required]
    		VModule overrides the verbosity threshold for individual files. Only supported for “text” log format.
    sanitization [Required]
    bool    		[Experimental] When enabled prevents logging of fields tagged as sensitive (passwords, keys, tokens). Runtime log sanitization may introduce significant computation overhead and therefore should not be enabled in production.`)
    options [Required]
    FormatOptions    		[Experimental] Options holds additional parameters that are specific to the different logging formats. Only the options for the selected format get used, but all of them get validated.

    VModuleConfiguration

    (Alias of []k8s.io/component-base/config/v1alpha1.VModuleItem)

    VModuleConfiguration is a collection of individual file names or patterns and the corresponding verbosity threshold.