mirror of
https://github.com/kubernetes-sigs/descheduler.git
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137f3b20dc
* add v1alpha2 registry based conversion * test defaults, set our 1st explicit default * fix typos and dates * move pluginregistry to its own dir * remove unused v1alpha2.Namespace type * move migration code folders, remove switch * validate internalPolicy a single time * remove structured logs * simplify return * check for nil methods * properly check before adding default evictor * add TODO comment * bump copyright year
85 lines
3.0 KiB
Go
85 lines
3.0 KiB
Go
/*
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Copyright 2022 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 nodeutilization
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/runtime"
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"sigs.k8s.io/descheduler/pkg/api"
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)
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func ValidateHighNodeUtilizationArgs(obj runtime.Object) error {
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args := obj.(*HighNodeUtilizationArgs)
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// only exclude can be set, or not at all
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if args.EvictableNamespaces != nil && len(args.EvictableNamespaces.Include) > 0 {
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return fmt.Errorf("only Exclude namespaces can be set, inclusion is not supported")
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}
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err := validateThresholds(args.Thresholds)
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if err != nil {
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return err
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}
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return nil
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}
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func ValidateLowNodeUtilizationArgs(obj runtime.Object) error {
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args := obj.(*LowNodeUtilizationArgs)
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// only exclude can be set, or not at all
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if args.EvictableNamespaces != nil && len(args.EvictableNamespaces.Include) > 0 {
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return fmt.Errorf("only Exclude namespaces can be set, inclusion is not supported")
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}
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err := validateLowNodeUtilizationThresholds(args.Thresholds, args.TargetThresholds, args.UseDeviationThresholds)
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if err != nil {
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return err
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}
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return nil
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}
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func validateLowNodeUtilizationThresholds(thresholds, targetThresholds api.ResourceThresholds, useDeviationThresholds bool) error {
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// validate thresholds and targetThresholds config
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if err := validateThresholds(thresholds); err != nil {
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return fmt.Errorf("thresholds config is not valid: %v", err)
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}
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if err := validateThresholds(targetThresholds); err != nil {
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return fmt.Errorf("targetThresholds config is not valid: %v", err)
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}
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// validate if thresholds and targetThresholds have same resources configured
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if len(thresholds) != len(targetThresholds) {
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return fmt.Errorf("thresholds and targetThresholds configured different resources")
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}
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for resourceName, value := range thresholds {
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if targetValue, ok := targetThresholds[resourceName]; !ok {
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return fmt.Errorf("thresholds and targetThresholds configured different resources")
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} else if value > targetValue && !useDeviationThresholds {
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return fmt.Errorf("thresholds' %v percentage is greater than targetThresholds'", resourceName)
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}
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}
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return nil
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}
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// validateThresholds checks if thresholds have valid resource name and resource percentage configured
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func validateThresholds(thresholds api.ResourceThresholds) error {
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if len(thresholds) == 0 {
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return fmt.Errorf("no resource threshold is configured")
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}
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for name, percent := range thresholds {
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if percent < MinResourcePercentage || percent > MaxResourcePercentage {
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return fmt.Errorf("%v threshold not in [%v, %v] range", name, MinResourcePercentage, MaxResourcePercentage)
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}
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}
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return nil
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}
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