4fd6a1684d
Duration of initialization taint on CPU and window of initial readiness
setting controlled by flags.
Adding API violation exceptions following example of e50340ee23
76 lines
4.2 KiB
Go
76 lines
4.2 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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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/apis/componentconfig"
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)
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// HPAControllerOptions holds the HPAController options.
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type HPAControllerOptions struct {
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HorizontalPodAutoscalerUseRESTClients bool
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HorizontalPodAutoscalerTolerance float64
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HorizontalPodAutoscalerDownscaleForbiddenWindow metav1.Duration
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HorizontalPodAutoscalerUpscaleForbiddenWindow metav1.Duration
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HorizontalPodAutoscalerSyncPeriod metav1.Duration
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HorizontalPodAutoscalerCPUTaintPeriod metav1.Duration
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HorizontalPodAutoscalerInitialReadinessDelay metav1.Duration
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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.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.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.HorizontalPodAutoscalerCPUTaintPeriod.Duration, "horizontal-pod-autoscaler-cpu-taint-period", o.HorizontalPodAutoscalerCPUTaintPeriod.Duration, "The period after pod start for which CPU samples are considered tainted by initialization.")
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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 *componentconfig.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.HorizontalPodAutoscalerDownscaleForbiddenWindow = o.HorizontalPodAutoscalerDownscaleForbiddenWindow
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cfg.HorizontalPodAutoscalerTolerance = o.HorizontalPodAutoscalerTolerance
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cfg.HorizontalPodAutoscalerUseRESTClients = o.HorizontalPodAutoscalerUseRESTClients
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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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