mirror of https://github.com/k3s-io/k3s
78 lines
2.6 KiB
Go
78 lines
2.6 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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 persistent_claim
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import (
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"fmt"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/types"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/volume"
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"github.com/golang/glog"
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)
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func ProbeVolumePlugins() []volume.VolumePlugin {
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return []volume.VolumePlugin{&persistentClaimPlugin{nil}}
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}
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type persistentClaimPlugin struct {
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host volume.VolumeHost
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}
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var _ volume.VolumePlugin = &persistentClaimPlugin{}
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const (
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persistentClaimPluginName = "kubernetes.io/persistent-claim"
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)
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func (plugin *persistentClaimPlugin) Init(host volume.VolumeHost) {
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plugin.host = host
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}
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func (plugin *persistentClaimPlugin) Name() string {
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return persistentClaimPluginName
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}
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func (plugin *persistentClaimPlugin) CanSupport(spec *volume.Spec) bool {
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return spec.VolumeSource.PersistentVolumeClaimVolumeSource != nil
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}
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func (plugin *persistentClaimPlugin) NewBuilder(spec *volume.Spec, podRef *api.ObjectReference, opts volume.VolumeOptions) (volume.Builder, error) {
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claim, err := plugin.host.GetKubeClient().PersistentVolumeClaims(podRef.Namespace).Get(spec.VolumeSource.PersistentVolumeClaimVolumeSource.ClaimName)
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if err != nil {
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glog.Errorf("Error finding claim: %+v\n", spec.VolumeSource.PersistentVolumeClaimVolumeSource.ClaimName)
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return nil, err
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}
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pv, err := plugin.host.GetKubeClient().PersistentVolumes().Get(claim.Status.VolumeRef.Name)
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if err != nil {
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glog.Errorf("Error finding persistent volume for claim: %+v\n", claim.Name)
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return nil, err
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}
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builder, err := plugin.host.NewWrapperBuilder(volume.NewSpecFromPersistentVolume(pv), podRef, opts)
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if err != nil {
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glog.Errorf("Error creating builder for claim: %+v\n", claim.Name)
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return nil, err
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}
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return builder, nil
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}
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func (plugin *persistentClaimPlugin) NewCleaner(volName string, podUID types.UID) (volume.Cleaner, error) {
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return nil, fmt.Errorf("This will never be called directly. The PV backing this claim has a cleaner. Kubelet uses that cleaner, not this one, when removing orphaned volumes.")
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}
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