// newMounterInternal is the internal mounter routine to build the volume.
func (plugin *flexVolumePlugin) newMounterInternal(spec *volume.Spec, pod *api.Pod, manager flexVolumeManager, mounter mount.Interface, runner exec.Interface, secrets map[string]string) (volume.Mounter, error) {
source, _, err := getVolumeSource(spec)
if err != nil {
return nil, err
}
return &flexVolumeMounter{
flexVolumeDisk: &flexVolumeDisk{
podUID: pod.UID,
podNamespace: pod.Namespace,
podName: pod.Name,
volName: spec.Name(),
driverName: source.Driver,
execPath: plugin.getExecutable(),
mounter: mounter,
plugin: plugin,
secrets: secrets,
},
fsType: source.FSType,
readOnly: source.ReadOnly,
options: source.Options,
runner: runner,
manager: manager,
blockDeviceMounter: &mount.SafeFormatAndMount{Interface: mounter, Runner: runner},
}, nil
}
func (plugin *configMapPlugin) NewMounter(spec *volume.Spec, pod *api.Pod, opts volume.VolumeOptions) (volume.Mounter, error) {
return &configMapVolumeMounter{
configMapVolume: &configMapVolume{spec.Name(), pod.UID, plugin, plugin.host.GetMounter(), plugin.host.GetWriter(), volume.MetricsNil{}},
source: *spec.Volume.ConfigMap,
pod: *pod,
opts: &opts}, nil
}
func newDeleter(spec *volume.Spec, host volume.VolumeHost) (volume.Deleter, error) {
if spec.PersistentVolume != nil && spec.PersistentVolume.Spec.HostPath == nil {
return nil, fmt.Errorf("spec.PersistentVolumeSource.HostPath is nil")
}
path := spec.PersistentVolume.Spec.HostPath.Path
return &hostPathDeleter{name: spec.Name(), path: path, host: host}, nil
}
func (plugin *gcePersistentDiskPlugin) newMounterInternal(spec *volume.Spec, podUID types.UID, manager pdManager, mounter mount.Interface) (volume.Mounter, error) {
// GCEPDs used directly in a pod have a ReadOnly flag set by the pod author.
// GCEPDs used as a PersistentVolume gets the ReadOnly flag indirectly through the persistent-claim volume used to mount the PV
volumeSource, readOnly, err := getVolumeSource(spec)
if err != nil {
return nil, err
}
pdName := volumeSource.PDName
partition := ""
if volumeSource.Partition != 0 {
partition = strconv.Itoa(int(volumeSource.Partition))
}
return &gcePersistentDiskMounter{
gcePersistentDisk: &gcePersistentDisk{
podUID: podUID,
volName: spec.Name(),
pdName: pdName,
partition: partition,
mounter: mounter,
manager: manager,
plugin: plugin,
MetricsProvider: volume.NewMetricsStatFS(getPath(podUID, spec.Name(), plugin.host)),
},
readOnly: readOnly}, nil
}
func (plugin *emptyDirPlugin) GetVolumeName(spec *volume.Spec) (string, error) {
volumeSource, _ := getVolumeSource(spec)
if volumeSource == nil {
return "", fmt.Errorf("Spec does not reference an EmptyDir volume type")
}
// Return user defined volume name, since this is an ephemeral volume type
return spec.Name(), nil
}
func (plugin *gcePersistentDiskPlugin) newDeleterInternal(spec *volume.Spec, manager pdManager) (volume.Deleter, error) {
if spec.PersistentVolume != nil && spec.PersistentVolume.Spec.GCEPersistentDisk == nil {
return nil, fmt.Errorf("spec.PersistentVolumeSource.GCEPersistentDisk is nil")
}
return &gcePersistentDiskDeleter{
gcePersistentDisk: &gcePersistentDisk{
volName: spec.Name(),
pdName: spec.PersistentVolume.Spec.GCEPersistentDisk.PDName,
manager: manager,
plugin: plugin,
}}, nil
}
func (dsw *desiredStateOfWorld) AddPodToVolume(
podName types.UniquePodName,
pod *api.Pod,
volumeSpec *volume.Spec,
outerVolumeSpecName string,
volumeGidValue string) (api.UniqueVolumeName, error) {
dsw.Lock()
defer dsw.Unlock()
volumePlugin, err := dsw.volumePluginMgr.FindPluginBySpec(volumeSpec)
if err != nil || volumePlugin == nil {
return "", fmt.Errorf(
"failed to get Plugin from volumeSpec for volume %q err=%v",
volumeSpec.Name(),
err)
}
volumeName, err :=
volumehelper.GetUniqueVolumeNameFromSpec(volumePlugin, volumeSpec)
if err != nil {
return "", fmt.Errorf(
"failed to GetUniqueVolumeNameFromSpec for volumeSpec %q using volume plugin %q err=%v",
volumeSpec.Name(),
volumePlugin.GetPluginName(),
err)
}
volumeObj, volumeExists := dsw.volumesToMount[volumeName]
if !volumeExists {
volumeObj = volumeToMount{
volumeName: volumeName,
podsToMount: make(map[types.UniquePodName]podToMount),
pluginIsAttachable: dsw.isAttachableVolume(volumeSpec),
volumeGidValue: volumeGidValue,
reportedInUse: false,
}
dsw.volumesToMount[volumeName] = volumeObj
}
// Create new podToMount object. If it already exists, it is refreshed with
// updated values (this is required for volumes that require remounting on
// pod update, like Downward API volumes).
dsw.volumesToMount[volumeName].podsToMount[podName] = podToMount{
podName: podName,
pod: pod,
spec: volumeSpec,
outerVolumeSpecName: outerVolumeSpecName,
}
return volumeName, nil
}
func newRecycler(pvName string, spec *volume.Spec, host volume.VolumeHost, config volume.VolumeConfig) (volume.Recycler, error) {
if spec.PersistentVolume == nil || spec.PersistentVolume.Spec.HostPath == nil {
return nil, fmt.Errorf("spec.PersistentVolumeSource.HostPath is nil")
}
path := spec.PersistentVolume.Spec.HostPath.Path
return &hostPathRecycler{
name: spec.Name(),
path: path,
host: host,
config: config,
timeout: volume.CalculateTimeoutForVolume(config.RecyclerMinimumTimeout, config.RecyclerTimeoutIncrement, spec.PersistentVolume),
pvName: pvName,
}, nil
}
func (plugin *glusterfsPlugin) newMounterInternal(spec *volume.Spec, ep *api.Endpoints, pod *api.Pod, mounter mount.Interface, exe exec.Interface) (volume.Mounter, error) {
source, readOnly := plugin.getGlusterVolumeSource(spec)
return &glusterfsMounter{
glusterfs: &glusterfs{
volName: spec.Name(),
mounter: mounter,
pod: pod,
plugin: plugin,
},
hosts: ep,
path: source.Path,
readOnly: readOnly,
exe: exe}, nil
}
func (plugin *emptyDirPlugin) newMounterInternal(spec *volume.Spec, pod *api.Pod, mounter mount.Interface, mountDetector mountDetector, opts volume.VolumeOptions) (volume.Mounter, error) {
medium := api.StorageMediumDefault
if spec.Volume.EmptyDir != nil { // Support a non-specified source as EmptyDir.
medium = spec.Volume.EmptyDir.Medium
}
return &emptyDir{
pod: pod,
volName: spec.Name(),
medium: medium,
mounter: mounter,
mountDetector: mountDetector,
plugin: plugin,
rootContext: plugin.host.GetRootContext(),
MetricsProvider: volume.NewMetricsDu(getPath(pod.UID, spec.Name(), plugin.host)),
}, nil
}
func (plugin *cephfsPlugin) newMounterInternal(spec *volume.Spec, podUID types.UID, mounter mount.Interface, secret string) (volume.Mounter, error) {
cephvs, _, err := getVolumeSource(spec)
if err != nil {
return nil, err
}
id := cephvs.User
if id == "" {
id = "admin"
}
path := cephvs.Path
if path == "" {
path = "/"
}
if !strings.HasPrefix(path, "/") {
path = "/" + path
}
secret_file := cephvs.SecretFile
if secret_file == "" {
secret_file = "/etc/ceph/" + id + ".secret"
}
return &cephfsMounter{
cephfs: &cephfs{
podUID: podUID,
volName: spec.Name(),
mon: cephvs.Monitors,
path: path,
secret: secret,
id: id,
secret_file: secret_file,
readonly: cephvs.ReadOnly,
mounter: mounter,
plugin: plugin},
}, nil
}
func (attacher *gcePersistentDiskAttacher) MountDevice(spec *volume.Spec, devicePath string, deviceMountPath string) error {
// Only mount the PD globally once.
mounter := attacher.host.GetMounter()
notMnt, err := mounter.IsLikelyNotMountPoint(deviceMountPath)
if err != nil {
if os.IsNotExist(err) {
if err := os.MkdirAll(deviceMountPath, 0750); err != nil {
return err
}
notMnt = true
} else {
return err
}
}
volumeSource, readOnly, err := getVolumeSource(spec)
if err != nil {
return err
}
options := []string{}
if readOnly {
options = append(options, "ro")
}
if notMnt {
diskMounter := &mount.SafeFormatAndMount{Interface: mounter, Runner: exec.New()}
err = diskMounter.FormatAndMount(devicePath, deviceMountPath, volumeSource.FSType, options)
if err != nil {
os.Remove(deviceMountPath)
return err
}
glog.V(4).Infof("formatting spec %v devicePath %v deviceMountPath %v fs %v with options %+v", spec.Name(), devicePath, deviceMountPath, volumeSource.FSType, options)
}
return nil
}
