/
selector.go
65 lines (54 loc) · 1.96 KB
/
selector.go
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/*
Copyright 2022 The Koordinator 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 sloconfig
import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
// virtualNode not a realNode, just a mockNode only have labels
type virtualNode = map[string] /*labelKey*/ string /*labelValue*/
// generateNodesByNodeSelector : generate testNodes to detect overlap for nodeConfigs simply
// example1: nodeSelector{MatchLabels{xx:v1}}, can generate one node {virtualNode{xx:v1}}
// example2: nodeSelector{MatchExpressions{{xx in v1,v2}}}, can generate nodes{virtualNode{xx:v1},virtualNode{xx:v2}}
func generateNodesByNodeSelector(nodeSelector *metav1.LabelSelector) []virtualNode {
if nodeSelector == nil {
return nil
}
virtualNodeNums := 1
for _, e := range nodeSelector.MatchExpressions {
valuesNum := len(e.Values)
if valuesNum > 0 {
virtualNodeNums = virtualNodeNums * valuesNum
}
}
virtualNodes := make([]virtualNode, virtualNodeNums)
//fill label with MatchLabels
for key, value := range nodeSelector.MatchLabels {
for i := range virtualNodes {
if virtualNodes[i] == nil {
virtualNodes[i] = map[string]string{}
}
virtualNodes[i][key] = value
}
}
//fill label with MatchExpressions
for _, e := range nodeSelector.MatchExpressions {
valuesNum := len(e.Values)
if valuesNum > 0 {
for i := range virtualNodes {
if virtualNodes[i] == nil {
virtualNodes[i] = map[string]string{}
}
virtualNodes[i][e.Key] = e.Values[i%valuesNum]
}
}
}
return virtualNodes
}