121 lines
3.0 KiB
Go
121 lines
3.0 KiB
Go
/*
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Copyright 2019 The KubeSphere 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 resources
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import (
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corev1 "k8s.io/api/core/v1"
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storagev1 "k8s.io/api/storage/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/klog"
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"kubesphere.io/kubesphere/pkg/informers"
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"strconv"
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)
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type extraAnnotationInjector struct {
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}
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func (i extraAnnotationInjector) addExtraAnnotations(item interface{}) interface{} {
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switch item.(type) {
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case *corev1.PersistentVolumeClaim:
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return i.injectPersistentVolumeClaim(item.(*corev1.PersistentVolumeClaim))
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case *storagev1.StorageClass:
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return i.injectStorageClass(item.(*storagev1.StorageClass))
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}
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return item
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}
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func (i extraAnnotationInjector) injectStorageClass(item *storagev1.StorageClass) *storagev1.StorageClass {
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count, err := countPvcByStorageClass(item.Name)
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if err != nil {
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klog.Errorf("inject annotation failed %+v", err)
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return item
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}
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item = item.DeepCopy()
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if item.Annotations == nil {
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item.Annotations = make(map[string]string, 0)
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}
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item.Annotations["kubesphere.io/pvc-count"] = strconv.Itoa(count)
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return item
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}
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func (i extraAnnotationInjector) injectPersistentVolumeClaim(item *corev1.PersistentVolumeClaim) *corev1.PersistentVolumeClaim {
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podLister := informers.SharedInformerFactory().Core().V1().Pods().Lister()
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pods, err := podLister.Pods(item.Namespace).List(labels.Everything())
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if err != nil {
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klog.Errorf("inject annotation failed %+v", err)
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return item
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}
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item = item.DeepCopy()
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if item.Annotations == nil {
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item.Annotations = make(map[string]string, 0)
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}
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if isPvcInUse(pods, item.Name) {
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item.Annotations["kubesphere.io/in-use"] = "true"
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} else {
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item.Annotations["kubesphere.io/in-use"] = "false"
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}
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return item
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}
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func isPvcInUse(pods []*corev1.Pod, pvcName string) bool {
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for _, pod := range pods {
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volumes := pod.Spec.Volumes
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for _, volume := range volumes {
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pvc := volume.PersistentVolumeClaim
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if pvc != nil && pvc.ClaimName == pvcName {
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return true
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}
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}
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}
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return false
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}
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func countPvcByStorageClass(scName string) (int, error) {
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persistentVolumeClaimLister := informers.SharedInformerFactory().Core().V1().PersistentVolumeClaims().Lister()
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all, err := persistentVolumeClaimLister.List(labels.Everything())
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if err != nil {
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return 0, err
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}
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count := 0
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for _, item := range all {
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if item.Spec.StorageClassName != nil {
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if *item.Spec.StorageClassName == scName {
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count++
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}
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} else if item.GetAnnotations()[corev1.BetaStorageClassAnnotation] == scName {
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count++
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}
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}
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return count, nil
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}
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