113 lines
3.4 KiB
Go
113 lines
3.4 KiB
Go
/*
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Copyright 2021 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 volumesnapshotclass
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import (
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"strconv"
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"strings"
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"k8s.io/apimachinery/pkg/labels"
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v1 "github.com/kubernetes-csi/external-snapshotter/client/v4/apis/volumesnapshot/v1"
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"github.com/kubernetes-csi/external-snapshotter/client/v4/informers/externalversions"
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"k8s.io/apimachinery/pkg/runtime"
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"kubesphere.io/kubesphere/pkg/api"
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"kubesphere.io/kubesphere/pkg/apiserver/query"
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"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
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)
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const (
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deletionPolicy = "deletionPolicy"
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driver = "driver"
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)
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type volumeSnapshotClassGetter struct {
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informers externalversions.SharedInformerFactory
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}
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func New(informer externalversions.SharedInformerFactory) v1alpha3.Interface {
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return &volumeSnapshotClassGetter{informers: informer}
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}
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func (v *volumeSnapshotClassGetter) Get(namespace, name string) (runtime.Object, error) {
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return v.informers.Snapshot().V1().VolumeSnapshotClasses().Lister().Get(name)
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}
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func (v *volumeSnapshotClassGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
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all, err := v.informers.Snapshot().V1().VolumeSnapshotClasses().Lister().List(query.Selector())
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if err != nil {
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return nil, err
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}
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var result []runtime.Object
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for _, snapshotClass := range all {
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snapshotClass = snapshotClass.DeepCopy()
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count := v.countVolumeSnapshots(snapshotClass.Name)
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if snapshotClass.Annotations == nil {
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snapshotClass.Annotations = make(map[string]string)
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}
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snapshotClass.Annotations["kubesphere.io/snapshot-count"] = strconv.Itoa(count)
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result = append(result, snapshotClass)
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}
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return v1alpha3.DefaultList(result, query, v.compare, v.filter), nil
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}
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func (v *volumeSnapshotClassGetter) compare(left, right runtime.Object, field query.Field) bool {
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leftSnapshotClass, ok := left.(*v1.VolumeSnapshotClass)
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if !ok {
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return false
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}
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rightSnapshotClass, ok := right.(*v1.VolumeSnapshotClass)
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if !ok {
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return false
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}
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return v1alpha3.DefaultObjectMetaCompare(leftSnapshotClass.ObjectMeta, rightSnapshotClass.ObjectMeta, field)
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}
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func (v *volumeSnapshotClassGetter) filter(object runtime.Object, filter query.Filter) bool {
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snapshotClass, ok := object.(*v1.VolumeSnapshotClass)
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if !ok {
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return false
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}
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switch filter.Field {
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case deletionPolicy:
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return strings.EqualFold(string(snapshotClass.DeletionPolicy), string(filter.Value))
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case driver:
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return strings.EqualFold(snapshotClass.Driver, string(filter.Value))
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default:
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return v1alpha3.DefaultObjectMetaFilter(snapshotClass.ObjectMeta, filter)
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}
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}
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func (v *volumeSnapshotClassGetter) countVolumeSnapshots(name string) int {
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snapshots, err := v.informers.Snapshot().V1().VolumeSnapshots().Lister().List(labels.Everything())
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if err != nil {
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return 0
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}
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var count int
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for _, snapshot := range snapshots {
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if snapshot.Spec.VolumeSnapshotClassName != nil && *snapshot.Spec.VolumeSnapshotClassName == name {
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count++
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}
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}
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return count
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}
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