scheduler

package
v1.14.3-k3s.1 Latest Latest
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 Go to latest Published: Jun 12, 2019 License: Apache-2.0 Imports: 34 Imported by: 0

Documentation

Index

Constants

View Source 
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"
)

Variables

This section is empty.

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) *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.

Source Files

View all Source files

Directories

Path Synopsis
Package algorithm contains a generic Scheduler interface and several implementations.
 Package algorithm contains a generic Scheduler interface and several implementations.
predicates
priorities
priorities/util
defaults
api
Package api contains scheduler API objects.
 Package api contains scheduler API objects.
latest
v1
Package v1 contains scheduler API objects.
 Package v1 contains scheduler API objects.
validation
apis
config
config/scheme
config/v1alpha1
config/validation
Package factory can set up a scheduler.
 Package factory can set up a scheduler.
internal
cache
cache/debugger
cache/fake
queue
examples
v1alpha1

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