cd0897801b
* Support provisioning * Support deletion * Use bind mounts instead of /flocker in containers * support ownership management or SELinux relabeling.
103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
/*
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Copyright 2015 The Kubernetes 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 flocker
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import (
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"fmt"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/resource"
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"k8s.io/kubernetes/pkg/volume"
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)
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type volumeManager interface {
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// Creates a volume
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CreateVolume(provisioner *flockerVolumeProvisioner) (datasetUUID string, volumeSizeGB int, labels map[string]string, err error)
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// Deletes a volume
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DeleteVolume(deleter *flockerVolumeDeleter) error
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}
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type flockerVolumeDeleter struct {
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*flockerVolume
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}
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var _ volume.Deleter = &flockerVolumeDeleter{}
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func (b *flockerVolumeDeleter) GetPath() string {
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return getPath(b.podUID, b.volName, b.plugin.host)
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}
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func (d *flockerVolumeDeleter) Delete() error {
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return d.manager.DeleteVolume(d)
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}
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type flockerVolumeProvisioner struct {
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*flockerVolume
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options volume.VolumeOptions
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}
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var _ volume.Provisioner = &flockerVolumeProvisioner{}
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func (c *flockerVolumeProvisioner) Provision() (*api.PersistentVolume, error) {
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if len(c.options.Parameters) > 0 {
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return nil, fmt.Errorf("Provisioning failed: Specified at least one unsupported parameter")
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}
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if c.options.Selector != nil {
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return nil, fmt.Errorf("Provisioning failed: Specified unsupported selector")
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}
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datasetUUID, sizeGB, labels, err := c.manager.CreateVolume(c)
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if err != nil {
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return nil, err
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}
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pv := &api.PersistentVolume{
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ObjectMeta: api.ObjectMeta{
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Name: c.options.PVName,
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Labels: map[string]string{},
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Annotations: map[string]string{
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"kubernetes.io/createdby": "flocker-dynamic-provisioner",
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},
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},
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeReclaimPolicy: c.options.PersistentVolumeReclaimPolicy,
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AccessModes: c.options.AccessModes,
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Capacity: api.ResourceList{
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api.ResourceName(api.ResourceStorage): resource.MustParse(fmt.Sprintf("%dGi", sizeGB)),
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},
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PersistentVolumeSource: api.PersistentVolumeSource{
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Flocker: &api.FlockerVolumeSource{
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DatasetUUID: datasetUUID,
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},
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},
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},
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}
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if len(labels) != 0 {
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if pv.Labels == nil {
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pv.Labels = make(map[string]string)
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}
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for k, v := range labels {
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pv.Labels[k] = v
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}
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}
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return pv, nil
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}
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