Documentation

Overview

    Package podautoscaler contains logic for autoscaling number of pods based on metrics observed.

    Index

    Constants

    This section is empty.

    Variables

    This section is empty.

    Functions

    func NewDefaultHPARateLimiter

    func NewDefaultHPARateLimiter(interval time.Duration) workqueue.RateLimiter

      NewDefaultHPARateLimitter creates a rate limitter which limits overall (as per the default controller rate limiter), as well as per the resync interval

      func NewFixedItemIntervalRateLimiter

      func NewFixedItemIntervalRateLimiter(interval time.Duration) workqueue.RateLimiter

      func UnsafeConvertToVersionVia

      func UnsafeConvertToVersionVia(obj runtime.Object, externalVersion schema.GroupVersion) (runtime.Object, error)

        UnsafeConvertToVersionVia is like api.Scheme.UnsafeConvertToVersion, but it does so via an internal version first. We use it since working with v2alpha1 is convenient here, but we want to use the v1 client (and can't just use the internal version). Note that conversion mutates the object, so you need to deepcopy *before* you call this if the input object came out of a shared cache.

        Types

        type FixedItemIntervalRateLimiter

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

          FixedItemIntervalRateLimiter limits items to a fixed-rate interval

          func (*FixedItemIntervalRateLimiter) Forget

          func (r *FixedItemIntervalRateLimiter) Forget(item interface{})

          func (*FixedItemIntervalRateLimiter) NumRequeues

          func (r *FixedItemIntervalRateLimiter) NumRequeues(item interface{}) int

          func (*FixedItemIntervalRateLimiter) When

          func (r *FixedItemIntervalRateLimiter) When(item interface{}) time.Duration

          type HorizontalController

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

          func (*HorizontalController) Run

          func (a *HorizontalController) Run(stopCh <-chan struct{})

          type ReplicaCalculator

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

          func NewReplicaCalculator

          func NewReplicaCalculator(metricsClient metricsclient.MetricsClient, podsGetter v1coreclient.PodsGetter) *ReplicaCalculator

          func (*ReplicaCalculator) GetMetricReplicas

          func (c *ReplicaCalculator) GetMetricReplicas(currentReplicas int32, targetUtilization int64, metricName string, namespace string, selector labels.Selector) (replicaCount int32, utilization int64, timestamp time.Time, err error)

            GetMetricReplicas calculates the desired replica count based on a target metric utilization (as a milli-value) for pods matching the given selector in the given namespace, and the current replica count

            func (*ReplicaCalculator) GetObjectMetricReplicas

            func (c *ReplicaCalculator) GetObjectMetricReplicas(currentReplicas int32, targetUtilization int64, metricName string, namespace string, objectRef *autoscaling.CrossVersionObjectReference) (replicaCount int32, utilization int64, timestamp time.Time, err error)

              GetObjectMetricReplicas calculates the desired replica count based on a target metric utilization (as a milli-value) for the given object in the given namespace, and the current replica count.

              func (*ReplicaCalculator) GetRawResourceReplicas

              func (c *ReplicaCalculator) GetRawResourceReplicas(currentReplicas int32, targetUtilization int64, resource v1.ResourceName, namespace string, selector labels.Selector) (replicaCount int32, utilization int64, timestamp time.Time, err error)

                GetRawResourceReplicas calculates the desired replica count based on a target resource utilization (as a raw milli-value) for pods matching the given selector in the given namespace, and the current replica count

                func (*ReplicaCalculator) GetResourceReplicas

                func (c *ReplicaCalculator) GetResourceReplicas(currentReplicas int32, targetUtilization int32, resource v1.ResourceName, namespace string, selector labels.Selector) (replicaCount int32, utilization int32, rawUtilization int64, timestamp time.Time, err error)

                  GetResourceReplicas calculates the desired replica count based on a target resource utilization percentage of the given resource for pods matching the given selector in the given namespace, and the current replica count

                  Directories

                  Path Synopsis