82 lines
2.4 KiB
Go
82 lines
2.4 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 topologymanager
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import (
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"fmt"
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"strconv"
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"k8s.io/apimachinery/pkg/util/sets"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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kubefeatures "k8s.io/kubernetes/pkg/features"
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)
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const (
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PreferClosestNUMANodes string = "prefer-closest-numa-nodes"
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)
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var (
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alphaOptions = sets.NewString(
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PreferClosestNUMANodes,
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)
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betaOptions = sets.NewString()
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stableOptions = sets.NewString()
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)
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func CheckPolicyOptionAvailable(option string) error {
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if !alphaOptions.Has(option) && !betaOptions.Has(option) && !stableOptions.Has(option) {
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return fmt.Errorf("unknown Topology Manager Policy option: %q", option)
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}
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if alphaOptions.Has(option) && !utilfeature.DefaultFeatureGate.Enabled(kubefeatures.TopologyManagerPolicyAlphaOptions) {
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return fmt.Errorf("Topology Manager Policy Alpha-level Options not enabled, but option %q provided", option)
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}
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if betaOptions.Has(option) && !utilfeature.DefaultFeatureGate.Enabled(kubefeatures.TopologyManagerPolicyBetaOptions) {
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return fmt.Errorf("Topology Manager Policy Beta-level Options not enabled, but option %q provided", option)
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}
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return nil
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}
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type PolicyOptions struct {
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PreferClosestNUMA bool
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}
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func NewPolicyOptions(policyOptions map[string]string) (PolicyOptions, error) {
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opts := PolicyOptions{}
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for name, value := range policyOptions {
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if err := CheckPolicyOptionAvailable(name); err != nil {
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return opts, err
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}
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switch name {
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case PreferClosestNUMANodes:
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optValue, err := strconv.ParseBool(value)
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if err != nil {
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return opts, fmt.Errorf("bad value for option %q: %w", name, err)
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}
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opts.PreferClosestNUMA = optValue
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default:
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// this should never be reached, we already detect unknown options,
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// but we keep it as further safety.
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return opts, fmt.Errorf("unsupported topologymanager option: %q (%s)", name, value)
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}
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}
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return opts, nil
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}
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