mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2025-03-16 21:38:23 +00:00
e225f4aad0
Separate feature discovery and creation of feature labels in the system source. Also, change the implementation of the nodeName custom rule to utilize the FeatureSource interface of the system source. Also, add minimalist unit test.
56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
/*
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Copyright 2021 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 rules
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import (
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"fmt"
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"regexp"
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"k8s.io/klog/v2"
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"sigs.k8s.io/node-feature-discovery/source"
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"sigs.k8s.io/node-feature-discovery/source/system"
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)
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// NodenameRule matches on nodenames configured in a ConfigMap
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type NodenameRule []string
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// Force implementation of Rule
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var _ Rule = NodenameRule{}
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func (n NodenameRule) Match() (bool, error) {
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nodeName, ok := source.GetFeatureSource("system").GetFeatures().Values[system.NameFeature].Elements["nodename"]
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if !ok {
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return false, fmt.Errorf("node name not available")
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}
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for _, nodenamePattern := range n {
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klog.V(1).Infof("matchNodename %s", nodenamePattern)
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match, err := regexp.MatchString(nodenamePattern, nodeName)
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if err != nil {
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klog.Errorf("nodename rule: invalid nodename regexp %q: %v", nodenamePattern, err)
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continue
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}
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if !match {
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klog.V(2).Infof("nodename rule: No match for pattern %q with node %q", nodenamePattern, nodeName)
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continue
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}
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klog.V(2).Infof("nodename rule: Match for pattern %q with node %q", nodenamePattern, nodeName)
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return true, nil
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}
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return false, nil
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}
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