| /* |
| Copyright 2019 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package config |
| |
| import ( |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| ) |
| |
| // HPAControllerConfiguration contains elements describing HPAController. |
| type HPAControllerConfiguration struct { |
| // horizontalPodAutoscalerSyncPeriod is the period for syncing the number of |
| // pods in horizontal pod autoscaler. |
| HorizontalPodAutoscalerSyncPeriod metav1.Duration |
| // horizontalPodAutoscalerUpscaleForbiddenWindow is a period after which next upscale allowed. |
| HorizontalPodAutoscalerUpscaleForbiddenWindow metav1.Duration |
| // horizontalPodAutoscalerDownscaleForbiddenWindow is a period after which next downscale allowed. |
| HorizontalPodAutoscalerDownscaleForbiddenWindow metav1.Duration |
| // HorizontalPodAutoscalerDowncaleStabilizationWindow is a period for which autoscaler will look |
| // backwards and not scale down below any recommendation it made during that period. |
| HorizontalPodAutoscalerDownscaleStabilizationWindow metav1.Duration |
| // horizontalPodAutoscalerTolerance is the tolerance for when |
| // resource usage suggests upscaling/downscaling |
| HorizontalPodAutoscalerTolerance float64 |
| // HorizontalPodAutoscalerUseRESTClients causes the HPA controller to use REST clients |
| // through the kube-aggregator when enabled, instead of using the legacy metrics client |
| // through the API server proxy. |
| HorizontalPodAutoscalerUseRESTClients bool |
| // HorizontalPodAutoscalerCPUInitializationPeriod is the period after pod start when CPU samples |
| // might be skipped. |
| HorizontalPodAutoscalerCPUInitializationPeriod metav1.Duration |
| // HorizontalPodAutoscalerInitialReadinessDelay is period after pod start during which readiness |
| // changes are treated as readiness being set for the first time. The only effect of this is that |
| // HPA will disregard CPU samples from unready pods that had last readiness change during that |
| // period. |
| HorizontalPodAutoscalerInitialReadinessDelay metav1.Duration |
| } |