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selectors.go
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selectors.go
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//
// DISCLAIMER
//
// Copyright 2024 ArangoDB GmbH, Cologne, Germany
//
// 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.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
package resources
import (
meta "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/arangodb/kube-arangodb/pkg/util/strings"
)
func SelectLabels(selector *meta.LabelSelector, labels map[string]string) bool {
if selector == nil {
return false
}
for k, v := range selector.MatchLabels {
if v2, ok := labels[k]; !ok || v2 != v {
return false
}
}
for _, req := range selector.MatchExpressions {
switch req.Operator {
case meta.LabelSelectorOpIn:
if len(req.Values) == 0 {
return false
}
if v, ok := labels[req.Key]; !ok {
return false
} else if !strings.ListContains(req.Values, v) {
return false
}
case meta.LabelSelectorOpNotIn:
if len(req.Values) == 0 {
return false
}
if v, ok := labels[req.Key]; ok {
if strings.ListContains(req.Values, v) {
return false
}
}
case meta.LabelSelectorOpExists:
if _, ok := labels[req.Key]; !ok {
return false
}
case meta.LabelSelectorOpDoesNotExist:
if _, ok := labels[req.Key]; ok {
return false
}
default:
return false
}
}
return true
}