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74 lines
4.5 KiB
Go
74 lines
4.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package options
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import (
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"github.com/spf13/pflag"
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kubectrlmgrconfig "k8s.io/kubernetes/pkg/controller/apis/config"
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)
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// HPAControllerOptions holds the HPAController options.
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type HPAControllerOptions struct {
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*kubectrlmgrconfig.HPAControllerConfiguration
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}
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// AddFlags adds flags related to HPAController for controller manager to the specified FlagSet.
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func (o *HPAControllerOptions) AddFlags(fs *pflag.FlagSet) {
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if o == nil {
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return
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}
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fs.DurationVar(&o.HorizontalPodAutoscalerSyncPeriod.Duration, "horizontal-pod-autoscaler-sync-period", o.HorizontalPodAutoscalerSyncPeriod.Duration, "The period for syncing the number of pods in horizontal pod autoscaler.")
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fs.DurationVar(&o.HorizontalPodAutoscalerUpscaleForbiddenWindow.Duration, "horizontal-pod-autoscaler-upscale-delay", o.HorizontalPodAutoscalerUpscaleForbiddenWindow.Duration, "The period since last upscale, before another upscale can be performed in horizontal pod autoscaler.")
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fs.MarkDeprecated("horizontal-pod-autoscaler-upscale-delay", "This flag is currently no-op and will be deleted.")
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fs.DurationVar(&o.HorizontalPodAutoscalerDownscaleStabilizationWindow.Duration, "horizontal-pod-autoscaler-downscale-stabilization", o.HorizontalPodAutoscalerDownscaleStabilizationWindow.Duration, "The period for which autoscaler will look backwards and not scale down below any recommendation it made during that period.")
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fs.DurationVar(&o.HorizontalPodAutoscalerDownscaleForbiddenWindow.Duration, "horizontal-pod-autoscaler-downscale-delay", o.HorizontalPodAutoscalerDownscaleForbiddenWindow.Duration, "The period since last downscale, before another downscale can be performed in horizontal pod autoscaler.")
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fs.MarkDeprecated("horizontal-pod-autoscaler-downscale-delay", "This flag is currently no-op and will be deleted.")
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fs.Float64Var(&o.HorizontalPodAutoscalerTolerance, "horizontal-pod-autoscaler-tolerance", o.HorizontalPodAutoscalerTolerance, "The minimum change (from 1.0) in the desired-to-actual metrics ratio for the horizontal pod autoscaler to consider scaling.")
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fs.BoolVar(&o.HorizontalPodAutoscalerUseRESTClients, "horizontal-pod-autoscaler-use-rest-clients", o.HorizontalPodAutoscalerUseRESTClients, "If set to true, causes the horizontal pod autoscaler controller to use REST clients through the kube-aggregator, instead of using the legacy metrics client through the API server proxy. This is required for custom metrics support in the horizontal pod autoscaler.")
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fs.DurationVar(&o.HorizontalPodAutoscalerCPUInitializationPeriod.Duration, "horizontal-pod-autoscaler-cpu-initialization-period", o.HorizontalPodAutoscalerCPUInitializationPeriod.Duration, "The period after pod start when CPU samples might be skipped.")
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fs.MarkDeprecated("horizontal-pod-autoscaler-use-rest-clients", "Heapster is no longer supported as a source for Horizontal Pod Autoscaler metrics.")
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fs.DurationVar(&o.HorizontalPodAutoscalerInitialReadinessDelay.Duration, "horizontal-pod-autoscaler-initial-readiness-delay", o.HorizontalPodAutoscalerInitialReadinessDelay.Duration, "The period after pod start during which readiness changes will be treated as initial readiness.")
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}
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// ApplyTo fills up HPAController config with options.
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func (o *HPAControllerOptions) ApplyTo(cfg *kubectrlmgrconfig.HPAControllerConfiguration) error {
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if o == nil {
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return nil
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}
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cfg.HorizontalPodAutoscalerSyncPeriod = o.HorizontalPodAutoscalerSyncPeriod
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cfg.HorizontalPodAutoscalerDownscaleStabilizationWindow = o.HorizontalPodAutoscalerDownscaleStabilizationWindow
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cfg.HorizontalPodAutoscalerTolerance = o.HorizontalPodAutoscalerTolerance
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cfg.HorizontalPodAutoscalerUseRESTClients = o.HorizontalPodAutoscalerUseRESTClients
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cfg.HorizontalPodAutoscalerCPUInitializationPeriod = o.HorizontalPodAutoscalerCPUInitializationPeriod
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cfg.HorizontalPodAutoscalerInitialReadinessDelay = o.HorizontalPodAutoscalerInitialReadinessDelay
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return nil
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}
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// Validate checks validation of HPAControllerOptions.
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func (o *HPAControllerOptions) Validate() []error {
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if o == nil {
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return nil
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}
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errs := []error{}
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return errs
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}
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