// Create will create a new volume with the volumeName and opts.
func (d *driver) Create(
ctx types.Context,
volumeName string,
opts *types.VolumeCreateOpts) (*types.Volume, error) {
if volumeName == "" {
return nil, goof.New("missing volume name or ID")
}
optsNew := &types.VolumeCreateOpts{}
az := d.availabilityZone()
optsNew.AvailabilityZone = &az
i, _ := strconv.Atoi(d.size())
size := int64(i)
optsNew.Size = &size
volumeType := d.volumeType()
optsNew.Type = &volumeType
io, _ := strconv.Atoi(d.iops())
IOPS := int64(io)
optsNew.IOPS = &IOPS
if opts.Opts.IsSet("availabilityZone") {
az = opts.Opts.GetString("availabilityZone")
}
if opts.Opts.IsSet("size") {
size = opts.Opts.GetInt64("size")
}
if opts.Opts.IsSet("volumeType") {
volumeType = opts.Opts.GetString("volumeType")
}
if opts.Opts.IsSet("type") {
volumeType = opts.Opts.GetString("type")
}
if opts.Opts.IsSet("iops") {
IOPS = opts.Opts.GetInt64("iops")
}
optsNew.Opts = opts.Opts
ctx.WithFields(log.Fields{
"volumeName": volumeName,
"availabilityZone": az,
"size": size,
"volumeType": volumeType,
"IOPS": IOPS,
"opts": opts}).Info("creating volume")
client := context.MustClient(ctx)
vol, err := client.Storage().VolumeCreate(ctx, volumeName, optsNew)
if err != nil {
return nil, err
}
ctx.WithFields(log.Fields{
"volumeName": volumeName,
"vol": vol}).Info("volume created")
return vol, nil
}
func (d *driver) volumeInspectByID(
ctx types.Context,
volumeID string,
attachments types.VolumeAttachmentsTypes,
opts types.Store) (*types.Volume, error) {
client := context.MustClient(ctx)
vol, err := client.Storage().VolumeInspect(ctx, volumeID,
&types.VolumeInspectOpts{
Attachments: attachments})
if err != nil {
return nil, err
}
return vol, nil
}
// Path will return the mounted path of the volumeName or volumeID.
func (d *driver) Path(
ctx types.Context,
volumeID, volumeName string,
opts types.Store) (string, error) {
ctx.WithFields(log.Fields{
"volumeName": volumeName,
"volumeID": volumeID,
"opts": opts}).Info("getting path to volume")
vol, err := d.volumeInspectByIDOrName(
ctx, volumeID, volumeName, types.VolAttReqTrue, opts)
if err != nil {
return "", err
} else if vol == nil {
return "", utils.NewNotFoundError(
fmt.Sprintf("volumeID=%s,volumeName=%s", volumeID, volumeName))
}
if len(vol.Attachments) == 0 {
return "", nil
}
client := context.MustClient(ctx)
mounts, err := client.OS().Mounts(
ctx, vol.Attachments[0].DeviceName, "", opts)
if err != nil {
return "", err
}
if len(mounts) == 0 {
return "", nil
}
volPath := d.volumeMountPath(mounts[0].MountPoint)
ctx.WithFields(log.Fields{
"volPath": volPath,
"vol": vol}).Info("returning path to volume")
return volPath, nil
}
func (d *driver) volumeInspectByIDOrName(
ctx types.Context,
volumeID, volumeName string,
attachments types.VolumeAttachmentsTypes,
opts types.Store) (*types.Volume, error) {
if volumeID != "" && volumeName != "" {
return nil, goof.New("specify either volumeID or volumeName")
}
client := context.MustClient(ctx)
var obj *types.Volume
if volumeID != "" {
var err error
obj, err = d.volumeInspectByID(ctx, volumeID, attachments, opts)
if err != nil {
return nil, err
}
} else {
objs, err := client.Storage().Volumes(
ctx, &types.VolumesOpts{Attachments: 0})
if err != nil {
return nil, err
}
for _, o := range objs {
if strings.EqualFold(volumeName, o.Name) {
obj, err = d.volumeInspectByID(ctx, o.ID, attachments, opts)
if err != nil {
return nil, err
}
break
}
}
}
if obj == nil {
return nil, utils.NewNotFoundError(
fmt.Sprintf("volumeID=%s,volumeName=%s", volumeID, volumeName))
}
return obj, nil
}
// List returns all available volume mappings.
func (d *driver) List(
ctx types.Context,
opts types.Store) ([]types.VolumeMapping, error) {
client := context.MustClient(ctx)
vols, err := client.Storage().Volumes(
ctx,
&types.VolumesOpts{
Attachments: opts.GetAttachments(),
Opts: opts,
},
)
if err != nil {
return nil, err
}
serviceName, serviceNameOK := context.ServiceName(ctx)
if !serviceNameOK {
return nil, goof.New("service name is missing")
}
volMaps := []types.VolumeMapping{}
for _, v := range vols {
vs := make(map[string]interface{})
vs["name"] = v.Name
vs["size"] = v.Size
vs["iops"] = v.IOPS
vs["type"] = v.Type
vs["availabilityZone"] = v.AvailabilityZone
vs["fields"] = v.Fields
vs["service"] = serviceName
vs["server"] = serviceName
volMaps = append(volMaps, &volumeMapping{
Name: v.Name,
VolumeMountPoint: v.MountPoint(),
VolumeStatus: vs,
})
}
return volMaps, nil
}
// Remove will remove a volume of volumeName.
func (d *driver) Remove(
ctx types.Context,
volumeName string,
opts types.Store) error {
if volumeName == "" {
return goof.New("missing volume name or ID")
}
vol, err := d.volumeInspectByIDOrName(
ctx, "", volumeName, 0, opts)
if err != nil {
return err
}
if vol == nil {
return goof.New("volume not found")
}
client := context.MustClient(ctx)
return client.Storage().VolumeRemove(ctx, vol.ID, opts)
}
// Unmount will unmount the specified volume by volumeName or volumeID.
func (d *driver) Unmount(
ctx types.Context,
volumeID, volumeName string,
opts types.Store) (*types.Volume, error) {
ctx.WithFields(log.Fields{
"volumeName": volumeName,
"volumeID": volumeID,
"opts": opts}).Info("unmounting volume")
if volumeName == "" && volumeID == "" {
return nil, goof.New("missing volume name or ID")
}
vol, err := d.volumeInspectByIDOrName(
ctx, volumeID, volumeName,
types.VolAttReqWithDevMapOnlyVolsAttachedToInstance, opts)
if err != nil {
return nil, err
}
if len(vol.Attachments) == 0 {
return nil, nil
}
client := context.MustClient(ctx)
inst, err := client.Storage().InstanceInspect(ctx, utils.NewStore())
if err != nil {
return nil, goof.New("problem getting instance ID")
}
var ma *types.VolumeAttachment
for _, att := range vol.Attachments {
if att.InstanceID.ID == inst.InstanceID.ID {
ma = att
break
}
}
if ma == nil {
return nil, goof.New("no attachment found for instance")
}
if ma.DeviceName == "" {
return nil, goof.New("no device name found for attachment")
}
mounts, err := client.OS().Mounts(
ctx, ma.DeviceName, "", opts)
if err != nil {
return nil, err
}
for _, mount := range mounts {
ctx.WithField("mount", mount).Debug("retrieved mount")
}
if len(mounts) > 0 {
for _, mount := range mounts {
ctx.WithField("mount", mount).Debug("unmounting mount point")
err = client.OS().Unmount(ctx, mount.MountPoint, opts)
if err != nil {
return nil, err
}
}
}
vol, err = client.Storage().VolumeDetach(ctx, vol.ID,
&types.VolumeDetachOpts{
Force: opts.GetBool("force"),
Opts: utils.NewStore(),
})
if err != nil {
return nil, err
}
ctx.WithFields(log.Fields{
"vol": vol}).Info("unmounted and detached volume")
return vol, nil
}
// Mount will return a mount point path when specifying either a volumeName
// or volumeID. If a overwriteFs boolean is specified it will overwrite
// the FS based on newFsType if it is detected that there is no FS present.
func (d *driver) Mount(
ctx types.Context,
volumeID, volumeName string,
opts *types.VolumeMountOpts) (string, *types.Volume, error) {
ctx.WithFields(log.Fields{
"volumeName": volumeName,
"volumeID": volumeID,
"opts": opts}).Info("mounting volume")
vol, err := d.volumeInspectByIDOrName(
ctx, volumeID, volumeName,
types.VolAttReqWithDevMapOnlyVolsAttachedToInstanceOrUnattachedVols,
opts.Opts)
if isErrNotFound(err) && d.volumeCreateImplicit() {
var err error
if vol, err = d.Create(ctx, volumeName, &types.VolumeCreateOpts{
Opts: utils.NewStore(),
}); err != nil {
return "", nil, goof.WithError(
"problem creating volume implicitly", err)
}
} else if err != nil {
return "", nil, err
}
if vol == nil {
return "", nil, goof.New("no volume returned or created")
}
client := context.MustClient(ctx)
if len(vol.Attachments) == 0 || opts.Preempt {
mp, err := d.getVolumeMountPath(vol.Name)
if err != nil {
return "", nil, err
}
ctx.Debug("performing precautionary unmount")
_ = client.OS().Unmount(ctx, mp, opts.Opts)
var token string
vol, token, err = client.Storage().VolumeAttach(
ctx, vol.ID, &types.VolumeAttachOpts{
Force: opts.Preempt,
Opts: utils.NewStore(),
})
if err != nil {
return "", nil, err
}
if token != "" {
opts := &types.WaitForDeviceOpts{
LocalDevicesOpts: types.LocalDevicesOpts{
ScanType: apiconfig.DeviceScanType(d.config),
Opts: opts.Opts,
},
Token: token,
Timeout: apiconfig.DeviceAttachTimeout(d.config),
}
_, _, err = client.Executor().WaitForDevice(ctx, opts)
if err != nil {
return "", nil, goof.WithError(
"problem with device discovery", err)
}
}
vol, err = d.volumeInspectByIDOrName(
ctx, vol.ID, "", types.VolAttReqTrue, opts.Opts)
if err != nil {
return "", nil, err
}
}
if len(vol.Attachments) == 0 {
return "", nil, goof.New("volume did not attach")
}
inst, err := client.Storage().InstanceInspect(ctx, utils.NewStore())
if err != nil {
return "", nil, goof.New("problem getting instance ID")
}
var ma *types.VolumeAttachment
for _, att := range vol.Attachments {
if att.InstanceID.ID == inst.InstanceID.ID {
ma = att
break
}
}
if ma == nil {
return "", nil, goof.New("no local attachment found")
}
if ma.DeviceName == "" {
return "", nil, goof.New("no device name returned")
}
mounts, err := client.OS().Mounts(
ctx, ma.DeviceName, "", opts.Opts)
if err != nil {
return "", nil, err
}
if len(mounts) > 0 {
return d.volumeMountPath(mounts[0].MountPoint), vol, nil
}
if opts.NewFSType == "" {
opts.NewFSType = d.fsType()
}
if err := client.OS().Format(
ctx,
ma.DeviceName,
&types.DeviceFormatOpts{
NewFSType: opts.NewFSType,
OverwriteFS: opts.OverwriteFS,
}); err != nil {
return "", nil, err
}
mountPath, err := d.getVolumeMountPath(vol.Name)
if err != nil {
return "", nil, err
}
if err := os.MkdirAll(mountPath, 0755); err != nil {
return "", nil, err
}
if err := client.OS().Mount(
ctx,
ma.DeviceName,
mountPath,
&types.DeviceMountOpts{}); err != nil {
return "", nil, err
}
mntPath := d.volumeMountPath(mountPath)
fields := log.Fields{
"vol": vol,
"mntPath": mntPath,
}
ctx.WithFields(fields).Info("volume mounted")
return mntPath, vol, nil
}