autoscaling

Documentation

Index

• Variables
• func CreateCPUHorizontalPodAutoscaler(rc *ResourceConsumer, cpu, minReplicas, maxRepl int32) *autoscalingv1.HorizontalPodAutoscaler
• func DeleteHorizontalPodAutoscaler(rc *ResourceConsumer, autoscalerName string)
• func GetResourceConsumerImage() string
• type ResourceConsumer
  • func NewDynamicResourceConsumer(name, nsName string, kind schema.GroupVersionKind, ...) *ResourceConsumer
  • func NewMetricExporter(name, nsName string, podAnnotations, serviceAnnotations map[string]string, ...) *ResourceConsumer
  • func NewStaticResourceConsumer(name, nsName string, ...) *ResourceConsumer
  • func (rc *ResourceConsumer) CleanUp()
  • func (rc *ResourceConsumer) ConsumeCPU(millicores int)
  • func (rc *ResourceConsumer) ConsumeCustomMetric(amount int)
  • func (rc *ResourceConsumer) ConsumeMem(megabytes int)
  • func (rc *ResourceConsumer) EnsureDesiredReplicas(desiredReplicas int, duration time.Duration, hpaName string)
  • func (rc *ResourceConsumer) EnsureDesiredReplicasInRange(minDesiredReplicas, maxDesiredReplicas int, duration time.Duration, ...)
  • func (rc *ResourceConsumer) GetHpa(name string) (*autoscalingv1.HorizontalPodAutoscaler, error)
  • func (rc *ResourceConsumer) GetReplicas() int
  • func (rc *ResourceConsumer) Pause()
  • func (rc *ResourceConsumer) Resume()
  • func (rc *ResourceConsumer) WaitForReplicas(desiredReplicas int, duration time.Duration)

Variables

var (
	// KindRC is the GVK for ReplicationController
	KindRC = schema.GroupVersionKind{Version: "v1", Kind: "ReplicationController"}
	// KindDeployment is the GVK for Deployment
	KindDeployment = schema.GroupVersionKind{Group: "apps", Version: "v1beta2", Kind: "Deployment"}
	// KindReplicaSet is the GVK for ReplicaSet
	KindReplicaSet = schema.GroupVersionKind{Group: "apps", Version: "v1beta2", Kind: "ReplicaSet"}
)

Functions

func CreateCPUHorizontalPodAutoscaler

func CreateCPUHorizontalPodAutoscaler(rc *ResourceConsumer, cpu, minReplicas, maxRepl int32) *autoscalingv1.HorizontalPodAutoscaler

CreateCPUHorizontalPodAutoscaler create a horizontalPodAutoscaler with CPU target for consuming resources.

func DeleteHorizontalPodAutoscaler

func DeleteHorizontalPodAutoscaler(rc *ResourceConsumer, autoscalerName string)

DeleteHorizontalPodAutoscaler delete the horizontalPodAutoscaler for consuming resources.

func GetResourceConsumerImage

func GetResourceConsumerImage() string

GetResourceConsumerImage is a wrapper to get the fully qualified URI of the ResourceConsumer image

Types

type ResourceConsumer

type ResourceConsumer struct {
	// contains filtered or unexported fields
}

ResourceConsumer is a tool for testing. It helps create specified usage of CPU or memory (Warning: memory not supported) typical use case: rc.ConsumeCPU(600) // ... check your assumption here rc.ConsumeCPU(300) // ... check your assumption here

func NewDynamicResourceConsumer

func NewDynamicResourceConsumer(name, nsName string, kind schema.GroupVersionKind, replicas, initCPUTotal, initMemoryTotal, initCustomMetric int, cpuLimit, memLimit int64, clientset clientset.Interface, scaleClient scaleclient.ScalesGetter) *ResourceConsumer

NewDynamicResourceConsumer is a wrapper to create a new dynamic ResourceConsumer

func NewMetricExporter

func NewMetricExporter(name, nsName string, podAnnotations, serviceAnnotations map[string]string, metricValue int, clientset clientset.Interface, scaleClient scaleclient.ScalesGetter) *ResourceConsumer

NewMetricExporter is a wrapper to create a new ResourceConsumer for metrics exporter

func NewStaticResourceConsumer

func NewStaticResourceConsumer(name, nsName string, replicas, initCPUTotal, initMemoryTotal, initCustomMetric int, cpuLimit, memLimit int64, clientset clientset.Interface, scaleClient scaleclient.ScalesGetter) *ResourceConsumer

NewStaticResourceConsumer is a wrapper to create a new static ResourceConsumer TODO this still defaults to replication controller

func (*ResourceConsumer) CleanUp

func (rc *ResourceConsumer) CleanUp()

CleanUp clean up the background goroutines responsible for consuming resources.

func (*ResourceConsumer) ConsumeCPU

func (rc *ResourceConsumer) ConsumeCPU(millicores int)

ConsumeCPU consumes given number of CPU

func (*ResourceConsumer) ConsumeCustomMetric

func (rc *ResourceConsumer) ConsumeCustomMetric(amount int)

ConsumeCustomMetric consumes given number of custom metric

func (*ResourceConsumer) ConsumeMem

func (rc *ResourceConsumer) ConsumeMem(megabytes int)

ConsumeMem consumes given number of Mem

func (*ResourceConsumer) EnsureDesiredReplicas

func (rc *ResourceConsumer) EnsureDesiredReplicas(desiredReplicas int, duration time.Duration, hpaName string)

EnsureDesiredReplicas ensure the replicas to desired number

func (*ResourceConsumer) EnsureDesiredReplicasInRange

func (rc *ResourceConsumer) EnsureDesiredReplicasInRange(minDesiredReplicas, maxDesiredReplicas int, duration time.Duration, hpaName string)

EnsureDesiredReplicasInRange ensure the replicas is in a desired range

func (*ResourceConsumer) GetHpa

func (rc *ResourceConsumer) GetHpa(name string) (*autoscalingv1.HorizontalPodAutoscaler, error)

GetHpa get the corresponding horizontalPodAutoscaler object

func (*ResourceConsumer) GetReplicas

func (rc *ResourceConsumer) GetReplicas() int

GetReplicas get the replicas

func (*ResourceConsumer) Pause

func (rc *ResourceConsumer) Pause()

Pause stops background goroutines responsible for consuming resources.

func (*ResourceConsumer) Resume

func (rc *ResourceConsumer) Resume()

Resume starts background goroutines responsible for consuming resources.

func (*ResourceConsumer) WaitForReplicas

func (rc *ResourceConsumer) WaitForReplicas(desiredReplicas int, duration time.Duration)

WaitForReplicas wait for the desired replicas