mirror of
https://github.com/kubernetes-sigs/descheduler.git
synced 2026-01-26 21:31:18 +01:00
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
250 lines
11 KiB
Go
250 lines
11 KiB
Go
/*
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Copyright 2023 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 v1alpha1
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import (
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"fmt"
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"k8s.io/klog/v2"
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"sigs.k8s.io/descheduler/pkg/api"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/nodeutilization"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/podlifetime"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removeduplicates"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removefailedpods"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodshavingtoomanyrestarts"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatinginterpodantiaffinity"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatingnodeaffinity"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatingnodetaints"
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"sigs.k8s.io/descheduler/pkg/framework/plugins/removepodsviolatingtopologyspreadconstraint"
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)
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// Once all strategies are migrated the arguments get read from the configuration file
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// without any wiring. Keeping the wiring here so the descheduler can still use
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// the v1alpha1 configuration during the strategy migration to plugins.
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var StrategyParamsToPluginArgs = map[string]func(params *StrategyParameters) (*api.PluginConfig, error){
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"RemovePodsViolatingNodeTaints": func(params *StrategyParameters) (*api.PluginConfig, error) {
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args := &removepodsviolatingnodetaints.RemovePodsViolatingNodeTaintsArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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IncludePreferNoSchedule: params.IncludePreferNoSchedule,
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ExcludedTaints: params.ExcludedTaints,
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}
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if err := removepodsviolatingnodetaints.ValidateRemovePodsViolatingNodeTaintsArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatingnodetaints.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removepodsviolatingnodetaints.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removepodsviolatingnodetaints.PluginName,
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Args: args,
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}, nil
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},
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"RemoveFailedPods": func(params *StrategyParameters) (*api.PluginConfig, error) {
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failedPodsParams := params.FailedPods
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if failedPodsParams == nil {
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failedPodsParams = &FailedPods{}
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}
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args := &removefailedpods.RemoveFailedPodsArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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IncludingInitContainers: failedPodsParams.IncludingInitContainers,
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MinPodLifetimeSeconds: failedPodsParams.MinPodLifetimeSeconds,
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ExcludeOwnerKinds: failedPodsParams.ExcludeOwnerKinds,
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Reasons: failedPodsParams.Reasons,
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}
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if err := removefailedpods.ValidateRemoveFailedPodsArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removefailedpods.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removefailedpods.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removefailedpods.PluginName,
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Args: args,
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}, nil
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},
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"RemovePodsViolatingNodeAffinity": func(params *StrategyParameters) (*api.PluginConfig, error) {
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args := &removepodsviolatingnodeaffinity.RemovePodsViolatingNodeAffinityArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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NodeAffinityType: params.NodeAffinityType,
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}
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if err := removepodsviolatingnodeaffinity.ValidateRemovePodsViolatingNodeAffinityArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatingnodeaffinity.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removepodsviolatingnodeaffinity.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removepodsviolatingnodeaffinity.PluginName,
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Args: args,
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}, nil
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},
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"RemovePodsViolatingInterPodAntiAffinity": func(params *StrategyParameters) (*api.PluginConfig, error) {
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args := &removepodsviolatinginterpodantiaffinity.RemovePodsViolatingInterPodAntiAffinityArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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}
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if err := removepodsviolatinginterpodantiaffinity.ValidateRemovePodsViolatingInterPodAntiAffinityArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatinginterpodantiaffinity.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removepodsviolatinginterpodantiaffinity.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removepodsviolatinginterpodantiaffinity.PluginName,
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Args: args,
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}, nil
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},
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"RemovePodsHavingTooManyRestarts": func(params *StrategyParameters) (*api.PluginConfig, error) {
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tooManyRestartsParams := params.PodsHavingTooManyRestarts
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if tooManyRestartsParams == nil {
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tooManyRestartsParams = &PodsHavingTooManyRestarts{}
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}
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args := &removepodshavingtoomanyrestarts.RemovePodsHavingTooManyRestartsArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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PodRestartThreshold: tooManyRestartsParams.PodRestartThreshold,
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IncludingInitContainers: tooManyRestartsParams.IncludingInitContainers,
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}
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if err := removepodshavingtoomanyrestarts.ValidateRemovePodsHavingTooManyRestartsArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodshavingtoomanyrestarts.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removepodshavingtoomanyrestarts.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removepodshavingtoomanyrestarts.PluginName,
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Args: args,
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}, nil
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},
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"PodLifeTime": func(params *StrategyParameters) (*api.PluginConfig, error) {
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podLifeTimeParams := params.PodLifeTime
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if podLifeTimeParams == nil {
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podLifeTimeParams = &PodLifeTime{}
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}
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var states []string
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if podLifeTimeParams.PodStatusPhases != nil {
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states = append(states, podLifeTimeParams.PodStatusPhases...)
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}
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if podLifeTimeParams.States != nil {
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states = append(states, podLifeTimeParams.States...)
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}
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args := &podlifetime.PodLifeTimeArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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MaxPodLifeTimeSeconds: podLifeTimeParams.MaxPodLifeTimeSeconds,
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States: states,
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}
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if err := podlifetime.ValidatePodLifeTimeArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", podlifetime.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", podlifetime.PluginName, err)
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}
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return &api.PluginConfig{
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Name: podlifetime.PluginName,
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Args: args,
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}, nil
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},
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"RemoveDuplicates": func(params *StrategyParameters) (*api.PluginConfig, error) {
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args := &removeduplicates.RemoveDuplicatesArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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}
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if params.RemoveDuplicates != nil {
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args.ExcludeOwnerKinds = params.RemoveDuplicates.ExcludeOwnerKinds
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}
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if err := removeduplicates.ValidateRemoveDuplicatesArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removeduplicates.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removeduplicates.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removeduplicates.PluginName,
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Args: args,
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}, nil
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},
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"RemovePodsViolatingTopologySpreadConstraint": func(params *StrategyParameters) (*api.PluginConfig, error) {
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args := &removepodsviolatingtopologyspreadconstraint.RemovePodsViolatingTopologySpreadConstraintArgs{
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Namespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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LabelSelector: params.LabelSelector,
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IncludeSoftConstraints: params.IncludeSoftConstraints,
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}
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if err := removepodsviolatingtopologyspreadconstraint.ValidateRemovePodsViolatingTopologySpreadConstraintArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", removepodsviolatingtopologyspreadconstraint.PluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", removepodsviolatingtopologyspreadconstraint.PluginName, err)
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}
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return &api.PluginConfig{
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Name: removepodsviolatingtopologyspreadconstraint.PluginName,
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Args: args,
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}, nil
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},
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"HighNodeUtilization": func(params *StrategyParameters) (*api.PluginConfig, error) {
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if params.NodeResourceUtilizationThresholds == nil {
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params.NodeResourceUtilizationThresholds = &NodeResourceUtilizationThresholds{}
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}
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args := &nodeutilization.HighNodeUtilizationArgs{
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EvictableNamespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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Thresholds: v1alpha1ThresholdToInternal(params.NodeResourceUtilizationThresholds.Thresholds),
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NumberOfNodes: params.NodeResourceUtilizationThresholds.NumberOfNodes,
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}
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if err := nodeutilization.ValidateHighNodeUtilizationArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", nodeutilization.HighNodeUtilizationPluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", nodeutilization.HighNodeUtilizationPluginName, err)
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}
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return &api.PluginConfig{
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Name: nodeutilization.HighNodeUtilizationPluginName,
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Args: args,
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}, nil
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},
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"LowNodeUtilization": func(params *StrategyParameters) (*api.PluginConfig, error) {
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if params.NodeResourceUtilizationThresholds == nil {
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params.NodeResourceUtilizationThresholds = &NodeResourceUtilizationThresholds{}
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}
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args := &nodeutilization.LowNodeUtilizationArgs{
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EvictableNamespaces: v1alpha1NamespacesToInternal(params.Namespaces),
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Thresholds: v1alpha1ThresholdToInternal(params.NodeResourceUtilizationThresholds.Thresholds),
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TargetThresholds: v1alpha1ThresholdToInternal(params.NodeResourceUtilizationThresholds.TargetThresholds),
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UseDeviationThresholds: params.NodeResourceUtilizationThresholds.UseDeviationThresholds,
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NumberOfNodes: params.NodeResourceUtilizationThresholds.NumberOfNodes,
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}
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if err := nodeutilization.ValidateLowNodeUtilizationArgs(args); err != nil {
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klog.ErrorS(err, "unable to validate plugin arguments", "pluginName", nodeutilization.LowNodeUtilizationPluginName)
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return nil, fmt.Errorf("strategy %q param validation failed: %v", nodeutilization.LowNodeUtilizationPluginName, err)
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}
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return &api.PluginConfig{
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Name: nodeutilization.LowNodeUtilizationPluginName,
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Args: args,
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}, nil
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},
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}
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func v1alpha1NamespacesToInternal(namespaces *Namespaces) *api.Namespaces {
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internal := &api.Namespaces{}
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if namespaces != nil {
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if namespaces.Exclude != nil {
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internal.Exclude = namespaces.Exclude
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}
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if namespaces.Include != nil {
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internal.Include = namespaces.Include
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}
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} else {
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internal = nil
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}
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return internal
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}
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func v1alpha1ThresholdToInternal(thresholds ResourceThresholds) api.ResourceThresholds {
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internal := make(api.ResourceThresholds, len(thresholds))
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for k, v := range thresholds {
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internal[k] = api.Percentage(float64(v))
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}
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return internal
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}
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