factory

package
Version: v1.2.0 Latest Latest
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Published: Mar 16, 2016 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Overview

Package factory can set up a scheduler. This code is here instead of plugin/cmd/scheduler for both testability and reuse.

Index

Constants

View Source
const (
	DefaultProvider = "DefaultProvider"
)
View Source
const (
	SchedulerAnnotationKey = "scheduler.alpha.kubernetes.io/name"
)

Variables

This section is empty.

Functions

func IsFitPredicateRegistered added in v0.8.0

func IsFitPredicateRegistered(name string) bool

This check is useful for testing providers.

func IsPriorityFunctionRegistered added in v0.8.0

func IsPriorityFunctionRegistered(name string) bool

This check is useful for testing providers.

func ListAlgorithmProviders added in v0.16.0

func ListAlgorithmProviders() string

ListAlgorithmProviders is called when listing all available algortihm providers in `kube-scheduler --help`

func RegisterAlgorithmProvider added in v0.8.0

func RegisterAlgorithmProvider(name string, predicateKeys, priorityKeys sets.String) string

Registers a new algorithm provider with the algorithm registry. This should be called from the init function in a provider plugin.

func RegisterCustomFitPredicate added in v0.12.0

func RegisterCustomFitPredicate(policy schedulerapi.PredicatePolicy) string

Registers a custom fit predicate with the algorithm registry. Returns the name, with which the predicate was registered.

func RegisterCustomPriorityFunction added in v0.12.0

func RegisterCustomPriorityFunction(policy schedulerapi.PriorityPolicy) string

Registers a custom priority function with the algorithm registry. Returns the name, with which the priority function was registered.

func RegisterFitPredicate added in v0.8.0

func RegisterFitPredicate(name string, predicate algorithm.FitPredicate) string

RegisterFitPredicate registers a fit predicate with the algorithm registry. Returns the name with which the predicate was registered.

func RegisterFitPredicateFactory added in v0.13.1

func RegisterFitPredicateFactory(name string, predicateFactory FitPredicateFactory) string

RegisterFitPredicateFactory registers a fit predicate factory with the algorithm registry. Returns the name with which the predicate was registered.

func RegisterPriorityConfigFactory added in v0.13.1

func RegisterPriorityConfigFactory(name string, pcf PriorityConfigFactory) string

func RegisterPriorityFunction added in v0.8.0

func RegisterPriorityFunction(name string, function algorithm.PriorityFunction, weight int) string

Registers a priority function with the algorithm registry. Returns the name, with which the function was registered.

Types

type AlgorithmProviderConfig added in v0.8.0

type AlgorithmProviderConfig struct {
	FitPredicateKeys     sets.String
	PriorityFunctionKeys sets.String
}

func GetAlgorithmProvider added in v0.8.0

func GetAlgorithmProvider(name string) (*AlgorithmProviderConfig, error)

This function should not be used to modify providers. It is publicly visible for testing.

type ConfigFactory

type ConfigFactory struct {
	Client *client.Client
	// queue for pods that need scheduling
	PodQueue *cache.FIFO
	// a means to list all known scheduled pods.
	ScheduledPodLister *cache.StoreToPodLister
	// a means to list all known scheduled pods and pods assumed to have been scheduled.
	PodLister algorithm.PodLister
	// a means to list all nodes
	NodeLister *cache.StoreToNodeLister
	// a means to list all PersistentVolumes
	PVLister *cache.StoreToPVFetcher
	// a means to list all PersistentVolumeClaims
	PVCLister *cache.StoreToPVCFetcher
	// a means to list all services
	ServiceLister *cache.StoreToServiceLister
	// a means to list all controllers
	ControllerLister *cache.StoreToReplicationControllerLister
	// a means to list all replicasets
	ReplicaSetLister *cache.StoreToReplicaSetLister

	// Close this to stop all reflectors
	StopEverything chan struct{}

	// SchedulerName of a scheduler is used to select which pods will be
	// processed by this scheduler, based on pods's annotation key:
	// 'scheduler.alpha.kubernetes.io/name'
	SchedulerName string
	// contains filtered or unexported fields
}

ConfigFactory knows how to fill out a scheduler config with its support functions.

func NewConfigFactory added in v0.7.0

func NewConfigFactory(client *client.Client, schedulerName string) *ConfigFactory

Initializes the factory.

func (*ConfigFactory) Create

func (f *ConfigFactory) Create() (*scheduler.Config, error)

Create creates a scheduler with the default algorithm provider.

func (*ConfigFactory) CreateFromConfig added in v0.12.0

func (f *ConfigFactory) CreateFromConfig(policy schedulerapi.Policy) (*scheduler.Config, error)

Creates a scheduler from the configuration file

func (*ConfigFactory) CreateFromKeys added in v0.8.0

func (f *ConfigFactory) CreateFromKeys(predicateKeys, priorityKeys sets.String, extenders []algorithm.SchedulerExtender) (*scheduler.Config, error)

Creates a scheduler from a set of registered fit predicate keys and priority keys.

func (*ConfigFactory) CreateFromProvider added in v0.8.0

func (f *ConfigFactory) CreateFromProvider(providerName string) (*scheduler.Config, error)

Creates a scheduler from the name of a registered algorithm provider.

type FitPredicateFactory added in v0.13.1

type FitPredicateFactory func(PluginFactoryArgs) algorithm.FitPredicate

A FitPredicateFactory produces a FitPredicate from the given args.

type PluginFactoryArgs added in v0.13.1

type PluginFactoryArgs struct {
	PodLister        algorithm.PodLister
	ServiceLister    algorithm.ServiceLister
	ControllerLister algorithm.ControllerLister
	ReplicaSetLister algorithm.ReplicaSetLister
	NodeLister       algorithm.NodeLister
	NodeInfo         predicates.NodeInfo
	PVInfo           predicates.PersistentVolumeInfo
	PVCInfo          predicates.PersistentVolumeClaimInfo
}

PluginFactoryArgs are passed to all plugin factory functions.

type PriorityConfigFactory added in v0.13.1

type PriorityConfigFactory struct {
	Function PriorityFunctionFactory
	Weight   int
}

A PriorityConfigFactory produces a PriorityConfig from the given function and weight

type PriorityFunctionFactory added in v0.15.0

type PriorityFunctionFactory func(PluginFactoryArgs) algorithm.PriorityFunction

A PriorityFunctionFactory produces a PriorityConfig from the given args.

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