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persistentvolumelist.go
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/
persistentvolumelist.go
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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 persistentvolume
import (
"log"
"github.com/kubernetes/dashboard/src/app/backend/resource/common"
"github.com/kubernetes/dashboard/src/app/backend/resource/dataselect"
"k8s.io/kubernetes/pkg/api"
client "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
)
// PersistentVolumeList contains a list of Persistent Volumes in the cluster.
type PersistentVolumeList struct {
ListMeta common.ListMeta `json:"listMeta"`
// Unordered list of Persistent Volumes
Items []PersistentVolume `json:"items"`
}
// PersistentVolume provides the simplified presentation layer view of Kubernetes Persistent Volume resource.
type PersistentVolume struct {
ObjectMeta common.ObjectMeta `json:"objectMeta"`
TypeMeta common.TypeMeta `json:"typeMeta"`
Capacity api.ResourceList `json:"capacity"`
AccessModes []api.PersistentVolumeAccessMode `json:"accessModes"`
Status api.PersistentVolumePhase `json:"status"`
Claim string `json:"claim"`
Reason string `json:"reason"`
// No additional info in the list object.
}
// GetPersistentVolumeList returns a list of all Persistent Volumes in the cluster.
func GetPersistentVolumeList(client *client.Clientset, dsQuery *dataselect.DataSelectQuery) (*PersistentVolumeList, error) {
log.Print("Getting list persistent volumes")
channels := &common.ResourceChannels{
PersistentVolumeList: common.GetPersistentVolumeListChannel(client, 1),
}
return GetPersistentVolumeListFromChannels(channels, dsQuery)
}
// GetPersistentVolumeListFromChannels returns a list of all Persistent Volumes in the cluster
// reading required resource list once from the channels.
func GetPersistentVolumeListFromChannels(channels *common.ResourceChannels, dsQuery *dataselect.DataSelectQuery) (
*PersistentVolumeList, error) {
persistentVolumes := <-channels.PersistentVolumeList.List
if err := <-channels.PersistentVolumeList.Error; err != nil {
return nil, err
}
result := getPersistentVolumeList(persistentVolumes.Items, dsQuery)
return result, nil
}
func getPersistentVolumeList(persistentVolumes []api.PersistentVolume, dsQuery *dataselect.DataSelectQuery) *PersistentVolumeList {
result := &PersistentVolumeList{
Items: make([]PersistentVolume, 0),
ListMeta: common.ListMeta{TotalItems: len(persistentVolumes)},
}
persistentVolumes = fromCells(dataselect.GenericDataSelect(toCells(persistentVolumes), dsQuery))
for _, item := range persistentVolumes {
var claim string
if item.Spec.ClaimRef != nil {
claim = item.Spec.ClaimRef.Name
}
result.Items = append(result.Items,
PersistentVolume{
ObjectMeta: common.NewObjectMeta(item.ObjectMeta),
TypeMeta: common.NewTypeMeta(common.ResourceKindPersistentVolume),
Capacity: item.Spec.Capacity,
AccessModes: item.Spec.AccessModes,
Status: item.Status.Phase,
Claim: claim,
Reason: item.Status.Reason,
})
}
return result
}