func volumeStartHandler(w http.ResponseWriter, r *http.Request) {
p := mux.Vars(r)
volname := p["volname"]
log.Info("In Volume start API")
vol, e := volume.GetVolume(volname)
if e != nil {
rest.SendHTTPError(w, http.StatusBadRequest, errors.ErrVolNotFound.Error())
return
}
if vol.Status == volume.VolStarted {
rest.SendHTTPError(w, http.StatusBadRequest, errors.ErrVolAlreadyStarted.Error())
return
}
vol.Status = volume.VolStarted
e = volume.AddOrUpdateVolumeFunc(vol)
if e != nil {
rest.SendHTTPError(w, http.StatusInternalServerError, e.Error())
return
}
log.WithField("volume", vol.Name).Debug("Volume updated into the store")
rest.SendHTTPResponse(w, http.StatusOK, vol)
}
func volumeStartHandler(w http.ResponseWriter, r *http.Request) {
p := mux.Vars(r)
volname := p["volname"]
log.Info("In Volume start API")
vol, e := volume.GetVolume(volname)
if e != nil {
rest.SendHTTPError(w, http.StatusBadRequest, errors.ErrVolNotFound.Error())
return
}
if vol.Status == volume.VolStarted {
rest.SendHTTPError(w, http.StatusBadRequest, errors.ErrVolAlreadyStarted.Error())
return
}
// A simple one-step transaction to start the brick processes
txn := transaction.NewTxn()
defer txn.Cleanup()
lock, unlock, err := transaction.CreateLockSteps(volname)
if err != nil {
rest.SendHTTPError(w, http.StatusInternalServerError, err.Error())
return
}
txn.Nodes = vol.Nodes()
txn.Steps = []*transaction.Step{
lock,
&transaction.Step{
DoFunc: "vol-start.Commit",
UndoFunc: "vol-start.Undo",
Nodes: txn.Nodes,
},
unlock,
}
txn.Ctx.Set("volname", volname)
_, e = txn.Do()
if e != nil {
log.WithFields(log.Fields{
"error": e.Error(),
"volume": volname,
}).Error("failed to start volume")
rest.SendHTTPError(w, http.StatusInternalServerError, e.Error())
return
}
vol.Status = volume.VolStarted
e = volume.AddOrUpdateVolumeFunc(vol)
if e != nil {
rest.SendHTTPError(w, http.StatusInternalServerError, e.Error())
return
}
log.WithField("volume", vol.Name).Debug("Volume updated into the store")
rest.SendHTTPResponse(w, http.StatusOK, vol)
}
func storeVolume(c transaction.TxnCtx) error {
var vol volume.Volinfo
e := c.Get("volinfo", &vol)
if e != nil {
return errors.New("failed to get volinfo from context")
}
e = volume.AddOrUpdateVolumeFunc(&vol)
if e != nil {
c.Logger().WithFields(log.Fields{"error": e.Error(),
"volume": vol.Name,
}).Error("Failed to create volume")
return e
}
log.WithField("volume", vol.Name).Debug("new volume added")
return nil
}
func commitVolumeCreate(vol *volume.Volinfo) (int, error) {
// Creating client and server volfile
e := volgen.GenerateVolfileFunc(vol)
if e != nil {
log.WithFields(log.Fields{"error": e.Error(),
"volume": vol.Name,
}).Error("Failed to generate volfile")
return http.StatusInternalServerError, e
}
e = volume.AddOrUpdateVolumeFunc(vol)
if e != nil {
log.WithFields(log.Fields{"error": e.Error(),
"volume": vol.Name,
}).Error("Failed to create volume")
return http.StatusInternalServerError, e
}
log.WithField("volume", vol.Name).Debug("NewVolume added to store")
return 0, nil
}