scheduler

Documentation

Index

• Constants
• func AddAllEventHandlers(sched *Scheduler, schedulerName string, ...)
• type EmptyPluginSet
  • func (r EmptyPluginSet) Data() *plugins.PluginData
  • func (r EmptyPluginSet) PrebindPlugins() []plugins.PrebindPlugin
  • func (r EmptyPluginSet) ReservePlugins() []plugins.ReservePlugin
• type FakeConfigurator
  • func (fc *FakeConfigurator) Create() (*factory.Config, error)
  • func (fc *FakeConfigurator) CreateFromConfig(policy schedulerapi.Policy) (*factory.Config, error)
  • func (fc *FakeConfigurator) CreateFromKeys(predicateKeys, priorityKeys sets.String, ...) (*factory.Config, error)
  • func (fc *FakeConfigurator) CreateFromProvider(providerName string) (*factory.Config, error)
  • func (fc *FakeConfigurator) GetClient() clientset.Interface
  • func (fc *FakeConfigurator) GetHardPodAffinitySymmetricWeight() int32
  • func (fc *FakeConfigurator) GetNodeLister() corelisters.NodeLister
  • func (fc *FakeConfigurator) GetPredicateMetadataProducer() (predicates.PredicateMetadataProducer, error)
  • func (fc *FakeConfigurator) GetPredicates(predicateKeys sets.String) (map[string]predicates.FitPredicate, error)
  • func (fc *FakeConfigurator) GetScheduledPodLister() corelisters.PodLister
  • func (fc *FakeConfigurator) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue internalqueue.SchedulingQueue) func(pod *v1.Pod, err error)
• type Option
  • func WithBindTimeoutSeconds(bindTimeoutSeconds int64) Option
  • func WithHardPodAffinitySymmetricWeight(hardPodAffinitySymmetricWeight int32) Option
  • func WithName(schedulerName string) Option
  • func WithPercentageOfNodesToScore(percentageOfNodesToScore int32) Option
  • func WithPreemptionDisabled(disablePreemption bool) Option
• type Scheduler
  • func New(client clientset.Interface, nodeInformer coreinformers.NodeInformer, ...) (*Scheduler, error)
  • func NewFromConfig(config *factory.Config, configurator factory.Configurator) *Scheduler
  • func (sched *Scheduler) Cache() schedulerinternalcache.Cache
  • func (sched *Scheduler) Config() *factory.Config
  • func (sched *Scheduler) Run()

Constants

const (
	// BindTimeoutSeconds defines the default bind timeout
	BindTimeoutSeconds = 100
	// SchedulerError is the reason recorded for events when an error occurs during scheduling a pod.
	SchedulerError = "SchedulerError"
)

Functions

func AddAllEventHandlers

func AddAllEventHandlers(
	sched *Scheduler,
	schedulerName string,
	nodeInformer coreinformers.NodeInformer,
	podInformer coreinformers.PodInformer,
	pvInformer coreinformers.PersistentVolumeInformer,
	pvcInformer coreinformers.PersistentVolumeClaimInformer,
	replicationControllerInformer coreinformers.ReplicationControllerInformer,
	replicaSetInformer appsinformers.ReplicaSetInformer,
	statefulSetInformer appsinformers.StatefulSetInformer,
	serviceInformer coreinformers.ServiceInformer,
	pdbInformer policyinformers.PodDisruptionBudgetInformer,
	storageClassInformer storageinformers.StorageClassInformer,
)

AddAllEventHandlers is a helper function used in tests and in Scheduler to add event handlers for various informers.

Types

type EmptyPluginSet

type EmptyPluginSet struct{}

EmptyPluginSet is the default plugin registrar used by the default scheduler.

func (EmptyPluginSet) Data

func (r EmptyPluginSet) Data() *plugins.PluginData

Data returns a pointer to PluginData.

func (EmptyPluginSet) PrebindPlugins

func (r EmptyPluginSet) PrebindPlugins() []plugins.PrebindPlugin

PrebindPlugins returns a slice of default prebind plugins.

func (EmptyPluginSet) ReservePlugins

func (r EmptyPluginSet) ReservePlugins() []plugins.ReservePlugin

ReservePlugins returns a slice of default reserve plugins.

type FakeConfigurator

type FakeConfigurator struct {
	Config *factory.Config
}

FakeConfigurator is an implementation for test.

func (*FakeConfigurator) Create

func (fc *FakeConfigurator) Create() (*factory.Config, error)

Create returns FakeConfigurator.Config

func (*FakeConfigurator) CreateFromConfig

func (fc *FakeConfigurator) CreateFromConfig(policy schedulerapi.Policy) (*factory.Config, error)

CreateFromConfig returns FakeConfigurator.Config

func (*FakeConfigurator) CreateFromKeys

func (fc *FakeConfigurator) CreateFromKeys(predicateKeys, priorityKeys sets.String, extenders []algorithm.SchedulerExtender) (*factory.Config, error)

CreateFromKeys returns FakeConfigurator.Config

func (*FakeConfigurator) CreateFromProvider

func (fc *FakeConfigurator) CreateFromProvider(providerName string) (*factory.Config, error)

CreateFromProvider returns FakeConfigurator.Config

func (*FakeConfigurator) GetClient

func (fc *FakeConfigurator) GetClient() clientset.Interface

GetClient is not implemented yet.

func (*FakeConfigurator) GetHardPodAffinitySymmetricWeight

func (fc *FakeConfigurator) GetHardPodAffinitySymmetricWeight() int32

GetHardPodAffinitySymmetricWeight is not implemented yet.

func (*FakeConfigurator) GetNodeLister

func (fc *FakeConfigurator) GetNodeLister() corelisters.NodeLister

GetNodeLister is not implemented yet.

func (*FakeConfigurator) GetPredicateMetadataProducer

func (fc *FakeConfigurator) GetPredicateMetadataProducer() (predicates.PredicateMetadataProducer, error)

GetPredicateMetadataProducer is not implemented yet.

func (*FakeConfigurator) GetPredicates

func (fc *FakeConfigurator) GetPredicates(predicateKeys sets.String) (map[string]predicates.FitPredicate, error)

GetPredicates is not implemented yet.

func (*FakeConfigurator) GetScheduledPodLister

func (fc *FakeConfigurator) GetScheduledPodLister() corelisters.PodLister

GetScheduledPodLister is not implemented yet.

func (*FakeConfigurator) MakeDefaultErrorFunc

func (fc *FakeConfigurator) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue internalqueue.SchedulingQueue) func(pod *v1.Pod, err error)

MakeDefaultErrorFunc is not implemented yet.

type Option

type Option func(*schedulerOptions)

Option configures a Scheduler

func WithBindTimeoutSeconds

func WithBindTimeoutSeconds(bindTimeoutSeconds int64) Option

WithBindTimeoutSeconds sets bindTimeoutSeconds for Scheduler, the default value is 100

func WithHardPodAffinitySymmetricWeight

func WithHardPodAffinitySymmetricWeight(hardPodAffinitySymmetricWeight int32) Option

WithHardPodAffinitySymmetricWeight sets hardPodAffinitySymmetricWeight for Scheduler, the default value is 1

func WithName

func WithName(schedulerName string) Option

WithName sets schedulerName for Scheduler, the default schedulerName is default-scheduler

func WithPercentageOfNodesToScore

func WithPercentageOfNodesToScore(percentageOfNodesToScore int32) Option

WithPercentageOfNodesToScore sets percentageOfNodesToScore for Scheduler, the default value is 50

func WithPreemptionDisabled

func WithPreemptionDisabled(disablePreemption bool) Option

WithPreemptionDisabled sets disablePreemption for Scheduler, the default value is false

type Scheduler

type Scheduler struct {
	// 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,
	nodeInformer coreinformers.NodeInformer,
	podInformer coreinformers.PodInformer,
	pvInformer coreinformers.PersistentVolumeInformer,
	pvcInformer coreinformers.PersistentVolumeClaimInformer,
	replicationControllerInformer coreinformers.ReplicationControllerInformer,
	replicaSetInformer appsinformers.ReplicaSetInformer,
	statefulSetInformer appsinformers.StatefulSetInformer,
	serviceInformer coreinformers.ServiceInformer,
	pdbInformer policyinformers.PodDisruptionBudgetInformer,
	storageClassInformer storageinformers.StorageClassInformer,
	recorder record.EventRecorder,
	schedulerAlgorithmSource kubeschedulerconfig.SchedulerAlgorithmSource,
	stopCh <-chan struct{},
	opts ...func(o *schedulerOptions)) (*Scheduler, error)

New returns a Scheduler

func NewFromConfig

func NewFromConfig(config *factory.Config, configurator factory.Configurator) *Scheduler

NewFromConfig returns a new scheduler using the provided Config.

func (*Scheduler) Cache

func (sched *Scheduler) Cache() schedulerinternalcache.Cache

Cache returns the cache in scheduler for test to check the data in scheduler.

func (*Scheduler) Config

func (sched *Scheduler) Config() *factory.Config

Config returns scheduler's config pointer. It is exposed for testing purposes.

func (*Scheduler) Run

func (sched *Scheduler) Run()

Run begins watching and scheduling. It waits for cache to be synced, then starts a goroutine and returns immediately.