How to use read_startup_config method in yandex-tank

Best Python code snippet using yandex-tank

agent.py

Source:agent.py

...177            shell=True,178            stdout=subprocess.PIPE,179            stderr=subprocess.PIPE,180            stdin=subprocess.PIPE, )181    def read_startup_config(self, cfg_file='agent_startup.cfg'):182        try:183            config = ConfigParser.ConfigParser()184            with open(os.path.join(self.working_dir, cfg_file), 'rb') as f:185                config.readfp(f)186            if config.has_section('startup'):187                for option in config.options('startup'):188                    if option.startswith('cmd'):189                        self.startups.append(config.get('startup', option))190            if config.has_section('shutdown'):191                for option in config.options('shutdown'):192                    if option.startswith('cmd'):193                        self.shutdowns.append(config.get('shutdown', option))194            if config.has_section('source'):195                for option in config.options('source'):196                    if option.startswith('file'):197                        self.custom_sources.append(config.get('source', option))198            logger.info(199                'Successfully loaded startup config.\n'200                'Startups: %s\n'201                'Shutdowns: %s\n', self.startups, self.shutdowns)202        except:203            logger.error(204                'Error trying to read agent startup config', exc_info=True)205    def run(self):206        logger.info("Running startup commands")207        for cmnd in self.startups:208            logger.debug("Run: %s", cmnd)209            proc = self.popen(cmnd)210            logger.info('Started with pid %d', proc.pid)211            self.startup_processes.append(proc)212        logger.info('Starting metrics collector..')213        cmnd = "{telegraf} -config {working_dir}/agent.cfg".format(214            telegraf=self.telegraf_path, working_dir=self.working_dir)215        self.collector = self.popen(cmnd)216        logger.info('Started with pid %d', self.collector.pid)217        telegraf_output = self.working_dir + '/monitoring.rawdata'218        sources = [telegraf_output] + self.custom_sources219        for _ in range(10):220            self.collector.poll()221            if not self.collector.returncode:222                logger.info("Waiting for telegraf...")223            else:224                logger.info(225                    "Telegraf with pid %d ended with code %d",226                    self.collector.pid, self.collector.returncode)227            if os.path.isfile(telegraf_output):228                break229            time.sleep(1)230        self.drain = Drain(231            Consolidator([iter(DataReader(f)) for f in sources]), self.results)232        self.drain.start()233        self.drain_stdout = Drain(234            DataReader(235                self.collector.stdout, pipe=True), self.results_stdout)236        self.drain_stdout.start()237        self.drain_err = Drain(238            DataReader(239                self.collector.stderr, pipe=True), self.results_err)240        self.drain_err.start()241        while not self.finished:242            for _ in range(self.results.qsize()):243                try:244                    data = self.results.get_nowait()245                    logger.debug(246                        'send %s bytes of data to collector', len(data))247                    sys.stdout.write(str(data) + '\n')248                    sys.stdout.flush()249                except q.Empty:250                    break251                except:252                    logger.error(253                        'Something nasty happend trying to send data',254                        exc_info=True)255            for _ in range(self.results_stdout.qsize()):256                try:257                    data = self.results_stdout.get_nowait()258                    if data:259                        collector_logger.info("STDOUT: %s", data)260                except q.Empty:261                    break262            for _ in range(self.results_err.qsize()):263                try:264                    data = self.results_err.get_nowait()265                    if data:266                        collector_logger.info("STDERR: %s", data.rstrip('\n'))267                except q.Empty:268                    break269            time.sleep(1)270        self.drain.close()271        self.drain_stdout.close()272        self.drain_err.close()273        self.stop()274    def proc_stop(self, proc, kill=False):275        proc.poll()276        if proc.returncode is None:277            try:278                if kill:279                    logger.info("Killing PID %s", proc.pid)280                    os.killpg(proc.pid, signal.SIGKILL)281                else:282                    logger.debug("Terminating: %s", proc.pid)283                    os.killpg(proc.pid, signal.SIGTERM)284                    proc.wait()285                    logger.info(286                        'Retcode for PID %s %s', proc.pid, proc.returncode)287            except OSError as ex:288                if ex.errno == 3:289                    logger.info("PID %s already died", proc.pid)290    def kill(self):291        logger.info("Forced stop")292        for proc in self.startup_processes:293            self.proc_stop(proc, kill=True)294        self.proc_stop(self.collector, kill=True)295    def stop(self):296        logger.info("Terminating startup commands")297        for proc in self.startup_processes:298            self.proc_stop(proc)299        logger.info('Terminating collector process: %s', self.collector)300        self.proc_stop(self.collector)301        logger.info("Running shutdown commands")302        for cmnd in self.shutdowns:303            logger.debug("Run: %s", cmnd)304            subprocess.call(cmnd, shell=True)305        self.finished = True306        logger.info("Worker thread finished")307        sys.stderr.write('stopped\n')308def main():309    fname = os.path.dirname(__file__) + "/_agent.log"310    logging.basicConfig(311        level=logging.DEBUG,312        filename=fname,313        format='%(asctime)s [%(levelname)s] %(name)s:%(lineno)d %(message)s')314    parser = OptionParser()315    parser.add_option(316        "",317        "--telegraf",318        dest="telegraf_path",319        help="telegraf_path",320        default="/tmp/telegraf")321    parser.add_option(322        "",323        "--host",324        dest="hostname_path",325        help="telegraf_path",326        default="/usr/bin/telegraf")327    (options, args) = parser.parse_args()328    logger.info('Init')329    customs_script = os.path.dirname(__file__) + '/agent_customs.sh'330    try:331        logger.info(332            'Trying to make telegraf executable: %s', options.telegraf_path)333        # 0o755 compatible with old python versions. 744 is NOT enough334        os.chmod(options.telegraf_path, 493)335    except OSError:336        logger.warning(337            'Unable to set %s access rights to execute.',338            options.telegraf_path,339            exc_info=True)340    try:341        logger.info(342            'Trying to make customs script executable: %s', customs_script)343        # 0o755 compatible with old python versions. 744 is NOT enough344        os.chmod(customs_script, 493)345    except OSError:346        logger.warning(347            'Unable to set %s access rights to execute.',348            customs_script,349            exc_info=True)350    worker = AgentWorker(options.telegraf_path)351    worker.read_startup_config()352    logger.info('Starting AgentWorker: %s', worker)353    worker.start()354    try:355        logger.debug("Check for any stdin command for shutdown")356        cmd = sys.stdin.readline()357        if cmd:358            logger.info("Stdin cmd received: %s", cmd)359    except KeyboardInterrupt:360        logger.debug("Interrupted")361    except:362        logger.error(363            "Something nasty happened while waiting for stop", exc_info=True)364    worker.finished = True365    agent_finished = False...

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