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c30b75b008
* Reports node declared features in Node.Status.DeclaredFeatures. * Add kubelet admission handler to check pod required features and match with node declared features on pod creation. * Checks node declared features on pod updates and emits events if the node does not satisfy the pod's feature requirements. * Adds API validation for node object.
50 lines
1.8 KiB
Go
50 lines
1.8 KiB
Go
/*
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Copyright 2025 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 kubelet
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import (
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/component-base/featuregate" // Import for the type conversion
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"k8s.io/component-helpers/nodedeclaredfeatures"
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)
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// FeatureGateAdapter adapts a component-base FeatureGate to the nodedeclaredfeatures FeatureGate interface.
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// This is needed because we cannot use featuregate.Feature in the library code (forbidden import).
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type FeatureGateAdapter struct {
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featuregate.FeatureGate
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}
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// Enabled implements the nodedeclaredfeatures.FeatureGate interface
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func (a FeatureGateAdapter) Enabled(key string) bool {
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// Convert the string key to featuregate.Feature
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return a.FeatureGate.Enabled(featuregate.Feature(key))
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}
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// discoverNodeDeclaredFeatures determines the final set of node features to be declared by using the discovery library.
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func (kl *Kubelet) discoverNodeDeclaredFeatures() []string {
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staticConfig := nodedeclaredfeatures.StaticConfiguration{
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CPUManagerPolicy: kl.containerManager.GetNodeConfig().CPUManagerPolicy,
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}
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adaptedFG := FeatureGateAdapter{FeatureGate: utilfeature.DefaultFeatureGate}
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cfg := &nodedeclaredfeatures.NodeConfiguration{
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FeatureGates: adaptedFG,
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StaticConfig: staticConfig,
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Version: kl.version,
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}
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return kl.nodeDeclaredFeaturesFramework.DiscoverNodeFeatures(cfg)
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}
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