142 lines
4.4 KiB
Go
142 lines
4.4 KiB
Go
/*
|
|
Copyright 2019 The KubeSphere 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 persistentvolumeclaim
|
|
|
|
import (
|
|
"strconv"
|
|
"strings"
|
|
|
|
snapshotinformers "github.com/kubernetes-csi/external-snapshotter/client/v4/informers/externalversions"
|
|
v1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/client-go/informers"
|
|
|
|
"kubesphere.io/kubesphere/pkg/api"
|
|
"kubesphere.io/kubesphere/pkg/apiserver/query"
|
|
"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
|
|
)
|
|
|
|
const (
|
|
storageClassName = "storageClassName"
|
|
|
|
annotationInUse = "kubesphere.io/in-use"
|
|
annotationAllowSnapshot = "kubesphere.io/allow-snapshot"
|
|
annotationStorageProvisioner = "volume.beta.kubernetes.io/storage-provisioner"
|
|
)
|
|
|
|
type persistentVolumeClaimGetter struct {
|
|
informers informers.SharedInformerFactory
|
|
snapshotInformers snapshotinformers.SharedInformerFactory
|
|
}
|
|
|
|
func New(informer informers.SharedInformerFactory, snapshotInformer snapshotinformers.SharedInformerFactory) v1alpha3.Interface {
|
|
return &persistentVolumeClaimGetter{informers: informer, snapshotInformers: snapshotInformer}
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) Get(namespace, name string) (runtime.Object, error) {
|
|
pvc, err := p.informers.Core().V1().PersistentVolumeClaims().Lister().PersistentVolumeClaims(namespace).Get(name)
|
|
if err != nil {
|
|
return pvc, err
|
|
}
|
|
p.annotatePVC(pvc)
|
|
return pvc, nil
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
|
|
all, err := p.informers.Core().V1().PersistentVolumeClaims().Lister().PersistentVolumeClaims(namespace).List(query.Selector())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var result []runtime.Object
|
|
for _, pvc := range all {
|
|
p.annotatePVC(pvc)
|
|
result = append(result, pvc)
|
|
}
|
|
return v1alpha3.DefaultList(result, query, p.compare, p.filter), nil
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) compare(left, right runtime.Object, field query.Field) bool {
|
|
leftSnapshot, ok := left.(*v1.PersistentVolumeClaim)
|
|
if !ok {
|
|
return false
|
|
}
|
|
rightSnapshot, ok := right.(*v1.PersistentVolumeClaim)
|
|
if !ok {
|
|
return false
|
|
}
|
|
return v1alpha3.DefaultObjectMetaCompare(leftSnapshot.ObjectMeta, rightSnapshot.ObjectMeta, field)
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) filter(object runtime.Object, filter query.Filter) bool {
|
|
pvc, ok := object.(*v1.PersistentVolumeClaim)
|
|
if !ok {
|
|
return false
|
|
}
|
|
|
|
switch filter.Field {
|
|
case query.FieldStatus:
|
|
return strings.EqualFold(string(pvc.Status.Phase), string(filter.Value))
|
|
case storageClassName:
|
|
return pvc.Spec.StorageClassName != nil && *pvc.Spec.StorageClassName == string(filter.Value)
|
|
default:
|
|
return v1alpha3.DefaultObjectMetaFilter(pvc.ObjectMeta, filter)
|
|
}
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) annotatePVC(pvc *v1.PersistentVolumeClaim) {
|
|
inUse := p.countPods(pvc.Name, pvc.Namespace)
|
|
isSnapshotAllow := p.isSnapshotAllowed(pvc.GetAnnotations()[annotationStorageProvisioner])
|
|
if pvc.Annotations == nil {
|
|
pvc.Annotations = make(map[string]string)
|
|
}
|
|
pvc.Annotations[annotationInUse] = strconv.FormatBool(inUse)
|
|
pvc.Annotations[annotationAllowSnapshot] = strconv.FormatBool(isSnapshotAllow)
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) countPods(name, namespace string) bool {
|
|
pods, err := p.informers.Core().V1().Pods().Lister().Pods(namespace).List(labels.Everything())
|
|
if err != nil {
|
|
return false
|
|
}
|
|
for _, pod := range pods {
|
|
for _, pvc := range pod.Spec.Volumes {
|
|
if pvc.PersistentVolumeClaim != nil && pvc.PersistentVolumeClaim.ClaimName == name {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (p *persistentVolumeClaimGetter) isSnapshotAllowed(provisioner string) bool {
|
|
if len(provisioner) == 0 {
|
|
return false
|
|
}
|
|
volumeSnapshotClasses, err := p.snapshotInformers.Snapshot().V1().VolumeSnapshotClasses().Lister().List(labels.Everything())
|
|
if err != nil {
|
|
return false
|
|
}
|
|
for _, volumeSnapshotClass := range volumeSnapshotClasses {
|
|
if volumeSnapshotClass.Driver == provisioner {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|