Exemplo n.º 1
0
def load_paste_app(app_name=None):
    """Builds and returns a WSGI app from a paste config file.
    We assume the last config file specified in the supplied ConfigOpts
    object is the paste config file.
    :param app_name: name of the application to load
    :raises RuntimeError when config file cannot be located or application
            cannot be loaded from config file
    """
    if app_name is None:
        app_name = CONF.prog

    # append the deployment flavor to the application name,
    # in order to identify the appropriate paste pipeline
    app_name += _get_deployment_flavor()

    conf_file = _get_deployment_config_file()

    try:
        logger = logging.getLogger(__name__)
        logger.debug("Loading {app_name} from {conf_file}".format(
            conf_file=conf_file, app_name=app_name))

        app = deploy.loadapp("config:%s" % conf_file, name=app_name)

        return app
    except (LookupError, ImportError) as e:
        msg = _("Unable to load %(app_name)s from configuration file"
                " %(conf_file)s. \nGot: %(e)r") % {'conf_file': conf_file,
                                                   'app_name': app_name,
                                                   'e': e}
        logger.error(msg)
        raise RuntimeError(msg)
Exemplo n.º 2
0
def _get_deployment_config_file():
    """Retrieve the deployment_config_file config item, formatted as an
       absolute pathname.
    """
    path = CONF.paste_deploy.config_file
    if not path:
        path = _get_paste_config_path()
    if not path:
        msg = _("Unable to locate paste config file for %s.") % CONF.prog
        raise RuntimeError(msg)
    return os.path.abspath(path)