// ReadMount reads a mount request and returns the name of the volume to mount.
//
// NOTE: this is the same for both path and mount and unmount. The docker
// implementation provides us with no other information.
func (v *Volplugin) ReadMount(r *http.Request) (*api.Volume, error) {
vol, err := unmarshal(r)
if err != nil {
return nil, err
}
policy, name, err := storage.SplitName(vol.Name)
if err != nil {
return nil, err
}
return &api.Volume{Policy: policy, Name: name}, nil
}
// ReadGet reads requests for the various Get endpoints (which all do the same thing)
func (v *Volplugin) ReadGet(r *http.Request) (string, error) {
vc := &VolumeGetRequest{}
content, err := ioutil.ReadAll(r.Body)
if err != nil {
return "", err
}
if err := json.Unmarshal(content, vc); err != nil {
return "", err
}
_, _, err = storage.SplitName(vc.Name)
if err != nil {
return "", err
}
return vc.Name, nil
}
func (a *API) get(origName string, r *http.Request) (string, error) {
policy, name, err := storage.SplitName(origName)
if err != nil {
return "", errors.GetVolume.Combine(err)
}
driver, volConfig, driverOpts, err := a.GetStorageParameters(&Volume{Policy: policy, Name: name})
if err != nil {
return "", errors.GetVolume.Combine(err)
}
if err := volConfig.Validate(); err != nil {
return "", errors.ConfiguringVolume.Combine(err)
}
path, err := driver.MountPath(driverOpts)
if err != nil {
return "", errors.MountPath.Combine(err)
}
return path, nil
}
// ReadCreate reads a create request from docker and parses it into a policy/volume.
func (v *Volplugin) ReadCreate(r *http.Request) (*config.VolumeRequest, error) {
content, err := ioutil.ReadAll(r.Body)
if err != nil {
return nil, errors.ReadBody.Combine(err)
}
var req VolumeCreateRequest
if err := json.Unmarshal(content, &req); err != nil {
return nil, errors.UnmarshalRequest.Combine(err)
}
policy, volume, err := storage.SplitName(req.Name)
if err != nil {
return nil, errors.UnmarshalRequest.Combine(errors.InvalidVolume).Combine(err)
}
return &config.VolumeRequest{
Policy: policy,
Name: volume,
Options: req.Opts,
}, nil
}