config.py 文件源码

def _get_variables_from_file(self, var_file):
        """
        Looks for file relative to base_path. If not found, checks relative to base_path/ansible.
        If file extension is .yml | .yaml, parses as YAML, otherwise parses as JSON.

        :return: ruamel.ordereddict
        """
        abspath = path.abspath(var_file)
        if not path.exists(abspath):
            dirname, filename = path.split(abspath)
            raise AnsibleContainerConfigException(
                u'Variables file "%s" not found. (I looked in "%s" for it.)' % (filename, dirname)
            )
        logger.debug("Use variable file: %s", abspath, file=abspath)

        if path.splitext(abspath)[-1].lower().endswith(('yml', 'yaml')):
            try:
                config = yaml.round_trip_load(open(abspath))
            except yaml.YAMLError as exc:
                raise AnsibleContainerConfigException(u"YAML exception: %s" % text_type(exc))
        else:
            try:
                config = json.load(open(abspath))
            except Exception as exc:
                raise AnsibleContainerConfigException(u"JSON exception: %s" % text_type(exc))
        return iteritems(config)