def __kibiter_version(self):
version = None<EOL>es_url = self.conf['<STR_LIT>']['<STR_LIT:url>']<EOL>config_url = '<STR_LIT>'<EOL>url = urijoin(es_url, config_url)<EOL>version = None<EOL>try:<EOL><INDENT>res = self.grimoire_con.get(url)<EOL>res.raise_for_status()<EOL>version = res.json()['<STR_LIT>']['<STR_LIT>'][<NUM_LIT:0>]['<STR_LIT>']<EOL>logger.debug("<STR_LIT>", version)<EOL><DEDENT>except requests.exceptions.HTTPError:<EOL><INDENT>logger.warning("<STR_LIT>")<EOL><DEDENT>return version<EOL>
Get the kibiter vesion.

        :param major: major Elasticsearch version