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cd3f7666be
get_local_queuename will return the pod name of the instance now that web and task are in different pods when web container queue a task it will be put into a queue without as task worker to execute the task
73 lines
2.5 KiB
Python
73 lines
2.5 KiB
Python
import logging
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import uuid
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import json
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from django.conf import settings
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from django.db import connection
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import redis
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from awx.main.dispatch import get_task_queuename
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from . import pg_bus_conn
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logger = logging.getLogger('awx.main.dispatch')
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class Control(object):
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services = ('dispatcher', 'callback_receiver')
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result = None
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def __init__(self, service, host=None):
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if service not in self.services:
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raise RuntimeError('{} must be in {}'.format(service, self.services))
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self.service = service
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self.queuename = host or get_task_queuename()
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def status(self, *args, **kwargs):
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r = redis.Redis.from_url(settings.BROKER_URL)
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if self.service == 'dispatcher':
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stats = r.get(f'awx_{self.service}_statistics') or b''
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return stats.decode('utf-8')
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else:
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workers = []
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for key in r.keys('awx_callback_receiver_statistics_*'):
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workers.append(r.get(key).decode('utf-8'))
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return '\n'.join(workers)
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def running(self, *args, **kwargs):
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return self.control_with_reply('running', *args, **kwargs)
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def cancel(self, task_ids, *args, **kwargs):
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return self.control_with_reply('cancel', *args, extra_data={'task_ids': task_ids}, **kwargs)
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@classmethod
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def generate_reply_queue_name(cls):
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return f"reply_to_{str(uuid.uuid4()).replace('-','_')}"
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def control_with_reply(self, command, timeout=5, extra_data=None):
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logger.warning('checking {} {} for {}'.format(self.service, command, self.queuename))
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reply_queue = Control.generate_reply_queue_name()
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self.result = None
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if not connection.get_autocommit():
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raise RuntimeError('Control-with-reply messages can only be done in autocommit mode')
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with pg_bus_conn() as conn:
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conn.listen(reply_queue)
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send_data = {'control': command, 'reply_to': reply_queue}
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if extra_data:
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send_data.update(extra_data)
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conn.notify(self.queuename, json.dumps(send_data))
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for reply in conn.events(select_timeout=timeout, yield_timeouts=True):
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if reply is None:
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logger.error(f'{self.service} did not reply within {timeout}s')
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raise RuntimeError(f"{self.service} did not reply within {timeout}s")
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break
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return json.loads(reply.payload)
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def control(self, msg, **kwargs):
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with pg_bus_conn() as conn:
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conn.notify(self.queuename, json.dumps(msg))
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