config.py 文件源码

def set_env(self, env, config=None):
        """
        Loads config from container.yml,  and stores the resulting dict to self._config.

        :param env: string of either 'dev' or 'prod'. Indicates 'dev_overrides' handling.
        :return: None
        """
        assert env in ['dev', 'prod']

        if not config:
            try:
                config = yaml.round_trip_load(open(self.config_path))
            except IOError:
                raise AnsibleContainerNotInitializedException()
            except yaml.YAMLError as exc:
                raise AnsibleContainerConfigException(u"Parsing container.yml - %s" % text_type(exc))

        self._validate_config(config)

        for service, service_config in iteritems(config.get('services') or {}):
            if not service_config or isinstance(service_config, string_types):
                raise AnsibleContainerConfigException(u"Error: no definition found in container.yml for service %s."
                                                      % service)
            self._update_service_config(env, service_config)

        # Insure settings['pwd'] = base_path. Will be used later by conductor to resolve $PWD in volumes.
        if config.get('settings', None) is None:
            config['settings'] = ordereddict()
        config['settings']['pwd'] = self.base_path

        self._resolve_defaults(config)

        logger.debug(u"Parsed config", config=config)
        self._config = config