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node-feature-discovery/source/custom/rules/nodename_rule.go
Markus Lehtonen 0757248055 source/custom: move rule expressions to pkg/apis/nfd/v1alpha1
Create a new package pkg/apis/nfd/v1alpha1 and migrate the custom rule
expressions over there. This is the first step in creating a new CRD API
for custom rules.
2021-11-16 18:12:16 +02:00

51 lines
1.5 KiB
Go

/*
Copyright 2021 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package rules
import (
"encoding/json"
"fmt"
nfdv1alpha1 "sigs.k8s.io/node-feature-discovery/pkg/apis/nfd/v1alpha1"
"sigs.k8s.io/node-feature-discovery/source"
"sigs.k8s.io/node-feature-discovery/source/system"
)
// NodenameRule matches on nodenames configured in a ConfigMap
type NodenameRule struct {
nfdv1alpha1.MatchExpression
}
func (r *NodenameRule) Match() (bool, error) {
nodeName, ok := source.GetFeatureSource("system").GetFeatures().Values[system.NameFeature].Elements["nodename"]
if !ok || nodeName == "" {
return false, fmt.Errorf("node name not available")
}
return r.MatchExpression.Match(true, nodeName)
}
func (r *NodenameRule) UnmarshalJSON(data []byte) error {
if err := json.Unmarshal(data, &r.MatchExpression); err != nil {
return err
}
// Force regexp matching
if r.Op == nfdv1alpha1.MatchIn {
r.Op = nfdv1alpha1.MatchInRegexp
}
// We need to run Validate() because operator forcing above
return r.Validate()
}