184 lines
4.9 KiB
Python
184 lines
4.9 KiB
Python
#!/usr/bin/python
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import copy
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import os
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import tempfile
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import signal
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SERVER_PID = os.path.join(tempfile.gettempdir(), 'performa.oms.pid')
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SERVER_FILE_NAME = os.path.join(tempfile.gettempdir(), 'performa.oms.srv')
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CLIENT_FILE_NAME = os.path.join(tempfile.gettempdir(), 'performa.oms.cln')
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UNIQUE_NAME = 'performa_omsimulator'
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DIR = '/tmp/performa/oslo.messaging/tools/'
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PYTHON = '/tmp/performa/oslo.messaging/.venv/bin/python'
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PATTERNS = [
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r'(?P<msg_sent>\d+) messages were sent for (?P<duration>\d+) sec',
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r'(?P<bytes_sent>\d+) bytes were sent for',
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]
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TRANSFORM_FIELDS = {
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'msg_sent': int,
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'bytes_sent': int,
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'duration': int,
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}
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def parse_output(raw):
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result = {}
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for pattern in PATTERNS:
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for parsed in re.finditer(pattern, raw):
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result.update(parsed.groupdict())
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for k in result.keys():
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if k in TRANSFORM_FIELDS:
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result[k] = TRANSFORM_FIELDS[k](result[k])
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result['msg_sent_bandwidth'] = (result.get('msg_sent', 0) /
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result.get('duration', 1))
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result['bytes_sent_bandwidth'] = (result.get('bytes_sent', 0) /
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result.get('duration', 1))
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return result
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def chdir(module):
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try:
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os.chdir(DIR)
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except Exception as e:
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module.fail_json(msg='Failed to change dir to %s: %s' % (DIR, e))
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def start_daemon(module, cmd):
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cmd = ('daemon -n %(name)s -D %(dir)s -F %(pid)s -U -- %(cmd)s' %
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dict(name=UNIQUE_NAME, dir=DIR, pid=SERVER_PID, cmd=cmd))
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rc, stdout, stderr = module.run_command(cmd)
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result = dict(changed=True, rc=rc, stdout=stdout, stderr=stderr, cmd=cmd)
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if rc:
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module.fail_json(msg='Failed to start omsimulator', **result)
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def stop_daemon(module):
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rc, stdout, stderr = module.run_command('/bin/cat %s' % SERVER_PID)
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if rc:
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return
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rc, stdout, stderr = module.run_command('pgrep -P %s' % stdout)
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os.kill(int(stdout), signal.SIGINT)
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time.sleep(2)
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def read_file(filename):
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fd = None
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try:
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fd = open(filename)
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return json.loads(fd.read())
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except IOError:
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raise
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finally:
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if fd:
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fd.close()
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def transform_series(series):
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result = []
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for k, v in series.items():
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for x in v:
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x['name'] = k
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result += v
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return result
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def run(module):
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params = copy.deepcopy(module.params)
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if params['mode'] == 'notify':
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server_tool = 'notify-server'
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client_tool = 'notify-client'
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else:
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server_tool = 'rpc-server'
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client_tool = 'rpc-client'
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params['python'] = PYTHON
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params['server_tool'] = server_tool
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params['client_tool'] = client_tool
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params['server_file'] = SERVER_FILE_NAME
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params['client_file'] = CLIENT_FILE_NAME
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server = ('%(python)s simulator.py '
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'--url %(url)s '
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'--json %(server_file)s '
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'%(server_tool)s ') % params
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client = ('%(python)s simulator.py '
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'--url=%(url)s '
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'--json %(client_file)s '
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'-l %(duration)s '
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'%(client_tool)s '
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'-p %(threads)s ') % params
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if params['mode'] == 'cast':
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client += '--is-cast True '
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if params['mode'] == 'fanout':
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client += '--is-fanout True '
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start_daemon(module, server)
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rc, stdout, stderr = module.run_command(client)
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if rc:
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module.fail_json(msg='Failed to start omsimulator',
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stderr=stderr, rc=rc, cmd=client)
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stop_daemon(module)
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try:
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client_data = read_file(CLIENT_FILE_NAME)
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server_data = read_file(SERVER_FILE_NAME)
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client_summary = client_data['summary']['client']
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record = dict(start=client_summary['start'],
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end=client_summary['end'],
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client=client_summary)
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if 'round_trip' in client_data['summary']:
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round_trip_summary = client_data['summary']['round_trip']
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record['round_trip'] = round_trip_summary
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server_summary = server_data['summary']
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record['server'] = server_summary
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series = transform_series(client_data['series'])
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series.extend(transform_series(server_data['series']))
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result = dict(records=[record], series=series)
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module.exit_json(**result)
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except Exception as e:
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msg = 'Failed to read omsimulator output: %s' % e
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module.fail_json(msg=msg, rc=rc, stderr=stderr, stdout=stdout)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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mode=dict(required=True,
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choices=['call', 'cast', 'fanout', 'notify']),
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url=dict(required=True),
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threads=dict(type='int', default=10),
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duration=dict(type='int', default=10),
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))
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chdir(module)
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run(module)
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from ansible.module_utils.basic import * # noqa
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if __name__ == '__main__':
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main()
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