provision/docker/handlers.go
func moveContainersHandler(w http.ResponseWriter, r *http.Request, t auth.Token) (err error) {
	params := map[string]string{}
	err = api.ParseInput(r, &params)
	if err != nil {
		return err
	}
	from := params["from"]
	to := params["to"]
	if from == "" || to == "" {
		return &tsuruErrors.ValidationError{Message: fmt.Sprintf("Invalid params: from: %q - to: %q", from, to)}
	}
	permContexts, err := moveContainersPermissionContexts(from, to)
	if err != nil {
		return err
	}
	if !permission.Check(t, permission.PermNodeUpdateMoveContainers, permContexts...) {
		return permission.ErrUnauthorized
	}
	evt, err := event.New(&event.Opts{
		Target:     event.Target{Type: event.TargetTypeNode, Value: from},
		Kind:       permission.PermNodeUpdateMoveContainers,
		Owner:      t,
		CustomData: event.FormToCustomData(r.Form),
		Allowed:    event.Allowed(permission.PermPoolReadEvents, permContexts...),
	})
	if err != nil {
		return err
	}
	defer func() { evt.Done(err) }()
	w.Header().Set("Content-Type", "application/x-json-stream")
	keepAliveWriter := tsuruIo.NewKeepAliveWriter(w, 15*time.Second, "")
	defer keepAliveWriter.Stop()
	writer := &tsuruIo.SimpleJsonMessageEncoderWriter{Encoder: json.NewEncoder(keepAliveWriter)}
	evt.SetLogWriter(writer)
	err = mainDockerProvisioner.MoveContainers(from, to, evt)
	if err != nil {
		return errors.Wrap(err, "Error trying to move containers")
	}
	fmt.Fprintf(evt, "Containers moved successfully!\n")
	return nil
}
func moveContainersHandler(w http.ResponseWriter, r *http.Request, t auth.Token) (err error) {
	params := map[string]string{}
	err = api.ParseInput(r, &params)
	if err != nil {
		return err
	}
	from := params["from"]
	to := params["to"]
	if from == "" || to == "" {
		return &tsuruErrors.ValidationError{Message: fmt.Sprintf("Invalid params: from: %q - to: %q", from, to)}
	}
	permContexts, err := moveContainersPermissionContexts(from, to)
	if err != nil {
		return err
	}
	if !permission.Check(t, permission.PermNodeUpdateMoveContainers, permContexts...) {
		return permission.ErrUnauthorized
	}
	evt, err := event.New(&event.Opts{
		Target:     event.Target{Type: event.TargetTypeNode, Value: from},
		Kind:       permission.PermNodeUpdateMoveContainers,
		Owner:      t,
		CustomData: event.FormToCustomData(r.Form),
		Allowed:    event.Allowed(permission.PermPoolReadEvents, permContexts...),
	})
	if err != nil {
		return err
	}
	defer func() { evt.Done(err) }()
	w.Header().Set("Content-Type", "application/x-json-stream")
	keepAliveWriter := tsuruIo.NewKeepAliveWriter(w, 15*time.Second, "")
	defer keepAliveWriter.Stop()
	writer := &tsuruIo.SimpleJsonMessageEncoderWriter{Encoder: json.NewEncoder(keepAliveWriter)}
	evt.SetLogWriter(writer)
	err = mainDockerProvisioner.MoveContainers(from, to, evt)
	if err != nil {
		return errors.Wrap(err, "Error trying to move containers")
	}
	fmt.Fprintf(evt, "Containers moved successfully!\n")
	return nil
}
// title: move containers
// path: /docker/containers/move
// method: POST
// consume: application/x-www-form-urlencoded
// produce: application/x-json-stream
// responses:
//   200: Ok
//   400: Invalid data
//   401: Unauthorized
//   404: Not found