api_views.py 文件源码

def _check_img_server(self, must_exist=False):
        try:
            self.img_server = ImageVm()

            if self.img_server:
                img_vm = self.img_server.vm

                if img_vm.status not in (img_vm.RUNNING, img_vm.STOPPED):
                    raise ObjectDoesNotExist
            elif must_exist:
                raise ObjectDoesNotExist
            else:
                logger.warning('Image server is disabled!')

        except ObjectDoesNotExist:
            raise PreconditionRequired(_('Image server is not available'))