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167 changes: 167 additions & 0 deletions
167
pkg/yurtmanager/controller/loadbalancerset/loadbalancerset/annotations.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| /* | ||
| Copyright 2024 The OpenYurt 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 loadbalancerset | ||
|
|
||
| import ( | ||
| "reflect" | ||
| "sort" | ||
| "strings" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
|
|
||
| "github.com/openyurtio/openyurt/pkg/apis/network" | ||
| netv1alpha1 "github.com/openyurtio/openyurt/pkg/apis/network/v1alpha1" | ||
| ) | ||
|
|
||
| func aggregatePoolServicesAnnotations(poolServices []netv1alpha1.PoolService) map[string]string { | ||
| aggregatedAnnotations := make(map[string]string) | ||
| for _, ps := range poolServices { | ||
| aggregatedAnnotations = mergeAnnotations(aggregatedAnnotations, filterIgnoredKeys(ps.Annotations)) | ||
| } | ||
|
|
||
| return aggregatedAnnotations | ||
| } | ||
|
|
||
| func filterIgnoredKeys(annotations map[string]string) map[string]string { | ||
| newAnnotations := make(map[string]string) | ||
| for key, value := range annotations { | ||
| if key == network.AnnotationNodePoolSelector { | ||
| continue | ||
| } | ||
| if !strings.HasPrefix(key, network.AggregateAnnotationsKeyPrefix) { | ||
| continue | ||
| } | ||
| newAnnotations[key] = value | ||
| } | ||
| return newAnnotations | ||
| } | ||
|
|
||
| func mergeAnnotations(m map[string]string, elem map[string]string) map[string]string { | ||
| if len(elem) == 0 { | ||
| return m | ||
| } | ||
|
|
||
| if m == nil { | ||
| m = make(map[string]string) | ||
| } | ||
|
|
||
| for k, v := range elem { | ||
| m[k] = mergeAnnotationValue(m[k], v) | ||
| } | ||
|
|
||
| return m | ||
| } | ||
|
|
||
| func mergeAnnotationValue(originalValue, addValue string) string { | ||
| if len(originalValue) == 0 { | ||
| return addValue | ||
| } | ||
|
|
||
| if len(addValue) == 0 { | ||
| return originalValue | ||
| } | ||
|
|
||
| splitOriginalValues := strings.Split(originalValue, ",") | ||
| if valueIsExist(splitOriginalValues, addValue) { | ||
| return originalValue | ||
| } | ||
|
|
||
| return joinNewValue(splitOriginalValues, addValue) | ||
| } | ||
|
|
||
| func valueIsExist(originalValueList []string, addValue string) bool { | ||
| for _, oldValue := range originalValueList { | ||
| if addValue == oldValue { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func joinNewValue(originalValueList []string, addValue string) string { | ||
| originalValueList = append(originalValueList, addValue) | ||
| sort.Strings(originalValueList) | ||
|
|
||
| return strings.Join(originalValueList, ",") | ||
| } | ||
|
|
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| func compareAndUpdateServiceAnnotations(svc *corev1.Service, aggregatedAnnotations map[string]string) bool { | ||
| currentAggregatedServiceAnnotations := filterIgnoredKeys(svc.Annotations) | ||
|
|
||
| if reflect.DeepEqual(currentAggregatedServiceAnnotations, aggregatedAnnotations) { | ||
| return false | ||
| } | ||
|
|
||
| update, deletion := diffAnnotations(currentAggregatedServiceAnnotations, aggregatedAnnotations) | ||
| updateAnnotations(svc.Annotations, update, deletion) | ||
|
|
||
| return true | ||
| } | ||
|
|
||
| func diffAnnotations(currentAnnotations, desiredAnnotations map[string]string) (update map[string]string, deletion map[string]string) { | ||
| if currentAnnotations == nil { | ||
| return desiredAnnotations, nil | ||
| } | ||
| if desiredAnnotations == nil { | ||
| return nil, currentAnnotations | ||
| } | ||
|
|
||
| update = make(map[string]string) | ||
| for key, value := range desiredAnnotations { | ||
| if currentAnnotations[key] != value { | ||
| update[key] = value | ||
| } | ||
| } | ||
|
|
||
| deletion = make(map[string]string) | ||
| for key, value := range currentAnnotations { | ||
| if _, exist := desiredAnnotations[key]; !exist { | ||
| deletion[key] = value | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| func updateAnnotations(annotations, update, deletion map[string]string) { | ||
| if len(update) == 0 && len(deletion) == 0 { | ||
| return | ||
| } | ||
| if annotations == nil { | ||
| annotations = make(map[string]string) | ||
| } | ||
| for key, value := range update { | ||
| annotations[key] = value | ||
| } | ||
|
|
||
| for key := range deletion { | ||
| delete(annotations, key) | ||
| } | ||
| } | ||
|
|
||
| func annotationValueIsEqual(oldAnnotations, newAnnotations map[string]string, key string) bool { | ||
| var oldValue string | ||
| if oldAnnotations != nil { | ||
| oldValue = oldAnnotations[key] | ||
| } | ||
|
|
||
| var newValue string | ||
| if newAnnotations != nil { | ||
| newValue = newAnnotations[key] | ||
| } | ||
|
|
||
| return oldValue == newValue | ||
| } |
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