package scheduler

import "k8s.io/kubernetes/pkg/scheduler"

Index ¶

• Constants
• func MakeDefaultErrorFunc(client clientset.Interface, podLister corelisters.PodLister, podQueue internalqueue.SchedulingQueue, schedulerCache internalcache.Cache) func(*framework.QueuedPodInfo, error)
• func NewInformerFactory(cs clientset.Interface, resyncPeriod time.Duration) informers.SharedInformerFactory
• type Binder
• type Configurator
• type FrameworkCapturer
• type Option
• func WithBuildFrameworkCapturer(fc FrameworkCapturer) Option
• func WithComponentConfigVersion(apiVersion string) Option
• func WithExtenders(e ...schedulerapi.Extender) Option
• func WithFrameworkOutOfTreeRegistry(registry frameworkruntime.Registry) Option
• func WithKubeConfig(cfg *restclient.Config) Option
• func WithLegacyPolicySource(source *schedulerapi.SchedulerPolicySource) Option
• func WithParallelism(threads int32) Option
• func WithPercentageOfNodesToScore(percentageOfNodesToScore int32) Option
• func WithPodInitialBackoffSeconds(podInitialBackoffSeconds int64) Option
• func WithPodMaxBackoffSeconds(podMaxBackoffSeconds int64) Option
• func WithProfiles(p ...schedulerapi.KubeSchedulerProfile) Option
• type Scheduler
• func New(client clientset.Interface, informerFactory informers.SharedInformerFactory, recorderFactory profile.RecorderFactory, stopCh <-chan struct{}, opts ...Option) (*Scheduler, error)
• func (sched *Scheduler) Run(ctx context.Context)

Constants ¶

const (
	// SchedulerError is the reason recorded for events when an error occurs during scheduling a pod.
	SchedulerError = "SchedulerError"
)

Functions ¶

func MakeDefaultErrorFunc ¶

func MakeDefaultErrorFunc(client clientset.Interface, podLister corelisters.PodLister, podQueue internalqueue.SchedulingQueue, schedulerCache internalcache.Cache) func(*framework.QueuedPodInfo, error)

MakeDefaultErrorFunc construct a function to handle pod scheduler error

func NewInformerFactory ¶

func NewInformerFactory(cs clientset.Interface, resyncPeriod time.Duration) informers.SharedInformerFactory

NewInformerFactory creates a SharedInformerFactory and initializes a scheduler specific in-place podInformer.

Types ¶

type Binder ¶

type Binder interface {
	Bind(binding *v1.Binding) error
}

Binder knows how to write a binding.

type Configurator ¶

type Configurator struct {

	// Close this to stop all reflectors
	StopEverything <-chan struct{}
	// contains filtered or unexported fields
}

Configurator defines I/O, caching, and other functionality needed to construct a new scheduler.

type FrameworkCapturer ¶

type FrameworkCapturer func(schedulerapi.KubeSchedulerProfile)

FrameworkCapturer is used for registering a notify function in building framework.

type Option ¶

type Option func(*schedulerOptions)

Option configures a Scheduler

func WithBuildFrameworkCapturer ¶

func WithBuildFrameworkCapturer(fc FrameworkCapturer) Option

WithBuildFrameworkCapturer sets a notify function for getting buildFramework details.

func WithComponentConfigVersion ¶

func WithComponentConfigVersion(apiVersion string) Option

WithComponentConfigVersion sets the component config version to the KubeSchedulerConfiguration version used. The string should be the full scheme group/version of the external type we converted from (for example "kubescheduler.config.k8s.io/v1beta2")

func WithExtenders ¶

func WithExtenders(e ...schedulerapi.Extender) Option

WithExtenders sets extenders for the Scheduler

func WithFrameworkOutOfTreeRegistry ¶

func WithFrameworkOutOfTreeRegistry(registry frameworkruntime.Registry) Option

WithFrameworkOutOfTreeRegistry sets the registry for out-of-tree plugins. Those plugins will be appended to the default registry.

func WithKubeConfig ¶

func WithKubeConfig(cfg *restclient.Config) Option

WithKubeConfig sets the kube config for Scheduler.

func WithLegacyPolicySource ¶

func WithLegacyPolicySource(source *schedulerapi.SchedulerPolicySource) Option

WithLegacyPolicySource sets legacy policy config file source.

func WithParallelism ¶

func WithParallelism(threads int32) Option

WithParallelism sets the parallelism for all scheduler algorithms. Default is 16.

func WithPercentageOfNodesToScore ¶

func WithPercentageOfNodesToScore(percentageOfNodesToScore int32) Option

WithPercentageOfNodesToScore sets percentageOfNodesToScore for Scheduler, the default value is 50

func WithPodInitialBackoffSeconds ¶

func WithPodInitialBackoffSeconds(podInitialBackoffSeconds int64) Option

WithPodInitialBackoffSeconds sets podInitialBackoffSeconds for Scheduler, the default value is 1

func WithPodMaxBackoffSeconds ¶

func WithPodMaxBackoffSeconds(podMaxBackoffSeconds int64) Option

WithPodMaxBackoffSeconds sets podMaxBackoffSeconds for Scheduler, the default value is 10

func WithProfiles ¶

func WithProfiles(p ...schedulerapi.KubeSchedulerProfile) Option

WithProfiles sets profiles for Scheduler. By default, there is one profile with the name "default-scheduler".

type Scheduler ¶

type Scheduler struct {
	// It is expected that changes made via SchedulerCache will be observed
	// by NodeLister and Algorithm.
	SchedulerCache internalcache.Cache

	Algorithm core.ScheduleAlgorithm

	Extenders []framework.Extender

	// NextPod should be a function that blocks until the next pod
	// is available. We don't use a channel for this, because scheduling
	// a pod may take some amount of time and we don't want pods to get
	// stale while they sit in a channel.
	NextPod func() *framework.QueuedPodInfo

	// Error is called if there is an error. It is passed the pod in
	// question, and the error
	Error func(*framework.QueuedPodInfo, error)

	// Close this to shut down the scheduler.
	StopEverything <-chan struct{}

	// SchedulingQueue holds pods to be scheduled
	SchedulingQueue internalqueue.SchedulingQueue

	// Profiles are the scheduling profiles.
	Profiles profile.Map
	// contains filtered or unexported fields
}

Scheduler watches for new unscheduled pods. It attempts to find nodes that they fit on and writes bindings back to the api server.

func New ¶

func New(client clientset.Interface,
	informerFactory informers.SharedInformerFactory,
	recorderFactory profile.RecorderFactory,
	stopCh <-chan struct{},
	opts ...Option) (*Scheduler, error)

New returns a Scheduler

func (*Scheduler) Run ¶

func (sched *Scheduler) Run(ctx context.Context)

Run begins watching and scheduling. It starts scheduling and blocked until the context is done.

Source Files ¶

eventhandlers.go factory.go scheduler.go

Directories ¶