How to use _kill_agent method in yandex-tank

Best Python code snippet using yandex-tank

client.py

Source:client.py

...346            self.ssh.rm_r(self.path['AGENT_REMOTE_FOLDER'])347        except Exception:348            logger.error("Unable to get agent artefacts", exc_info=True)349        if not self.successfull_stop:350            self._kill_agent()351        return log_filename, data_filename352    def _wait_for_stop(self):353        done = False354        agent_stop_timeout = 5355        while not done:356            if not self.stop_sent:357                logger.info('Session was broken on %s, switch to kill', self.host)358                break359            if (self.stop_sent + agent_stop_timeout) < time.time():360                logger.info("Agent hasn't finished in %s sec, force quit on %s",361                            agent_stop_timeout,362                            self.host)363                break364            if self.session.finished():365                logger.debug('Session ended with status %s with %s',366                             self.session.exit_status(),367                             self.host)368                self.successfull_stop = True369                done = True370            agent_stderr = self.session.read_err_maybe()371            if agent_stderr and 'stopped' in agent_stderr:372                logger.debug('Got stopped message from %s', self.host)373                done = True374    def _kill_agent(self):375        if self.agent_remote_folder:376            tpl = ('main_p=$(pgrep -f "[p]ython.*{folder}");'377                   'tlgrf_p=$(pgrep -f "[t]elegraf.*{folder}");'378                   'descendent_pids(){{ if [ "x$1" != "x" ]; then '379                   'pids=$(pgrep -P $1); echo $pids;'380                   'for p in $pids; do descendent_pids $p; done; fi }};'381                   'all_p=$(descendent_pids ${{main_p}});'382                   'if [ "x${{main_p}}${{tlgrf_p}}${{all_p}}" != "x" ] ; then '383                   ' kill -9 ${{main_p}} ${{tlgrf_p}} ${{all_p}}; fi')384            cmd = tpl.format(folder=self.agent_remote_folder)385            out, errors, err_code = self.ssh.execute(cmd)386            if errors:387                logger.error(388                    "[%s] error while killing agent: '%s'",...

SSHer.py

Source:SSHer.py

...198        cmd = ' '.join(pieces)199        self._info.log( 'execute: %s' % cmd )200        failed, output, error = spawn( cmd )201        if private_key:202            self._kill_agent(pid)203        if failed and not suppressException:204            msg = '%r failed: %s' % (205                cmd, error )206            raise RemoteAccessError, msg207        return failed, output, error208    def _create_agent(self):209        cmd = 'eval `ssh-agent`  > /dev/null; echo $SSH_AUTH_SOCK; echo $SSH_AGENT_PID'210        failed, output, error = spawn( cmd )211        if failed:212            msg = '%r failed: %s' % (213                cmd, error )214            raise RuntimeError, msg215        lines = output.splitlines()216        socket = lines[0].strip()217        pid = lines[1].strip()218        return socket, pid219    220    def _create_agent_with_key(self, private_key):221        socket, pid = self._create_agent()222        cmd = 'SSH_AUTH_SOCK=%s ssh-add "%s" > /dev/null; ' % (223            socket, private_key)224        failed, output, error = spawn( cmd )225        if failed:226            self._kill_agent(pid)227            msg = '%r failed: %s' % (228                cmd, error )229            raise RuntimeError, msg230        return socket, pid231    def _kill_agent(self, pid):232        cmd = 'kill -9 %s' % pid233        failed, output, error = spawn( cmd )234        if failed:235            msg = '%r failed: %s' % (236                cmd, error )237            raise RuntimeError, msg238        return239    def _isdirectory(self, server, path):240        if _localhost(server):241            return os.path.isdir(path)242        cmd = '''python -c "import os; print int(os.path.isdir('%s'))"''' % path243        failed, out, err = self.execute(cmd, server, '')244        return int(out)245        ...

__init__.py

Source:__init__.py

2from . import parse_agent_variables3import logging4import os5import atexit6def _kill_agent():7    logging.info('killing previously started ssh-agent')8    subprocess.run(['ssh-agent', '-k'])9    del os.environ['SSH_AUTH_SOCK']10    del os.environ['SSH_AGENT_PID']11def _setup_agent():12    process = subprocess.run(['ssh-agent', '-s'], stdout=subprocess.PIPE, text=True)13    agent_data = parse_agent_variables.parse(process.stdout)14    logging.info('ssh agent data: {}'.format(agent_data))15    logging.info('exporting ssh agent environment variables')16    os.environ['SSH_AUTH_SOCK'] = agent_data['SSH_AUTH_SOCK']17    os.environ['SSH_AGENT_PID'] = agent_data['SSH_AGENT_PID']18    atexit.register(_kill_agent)19def agent_up():20    return os.environ.get('SSH_AUTH_SOCK') is not None...

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