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supervisor.py
92 lines | 3.2 KiB | text/x-python | PythonLexer
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r1 # -*- coding: utf-8 -*-
# Copyright (C) 2014-2016 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
"""
Model for supervisor process manager
"""
import xmlrpclib
import logging
import traceback
import rhodecode
from rhodecode.model import BaseModel
log = logging.getLogger(__name__)
SUPERVISOR_MASTER = 'MASTER' # special name for supervisor master process
class SupervisorModel(BaseModel):
cls = None
def __init__(self, sa=None):
super(SupervisorModel, self).__init__(sa=sa)
def _verify_connection(self, connection):
if not isinstance(connection, xmlrpclib.ServerProxy):
raise Exception('Invalid connection given, got %s, expected %s'
% (type(connection), xmlrpclib.ServerProxy))
def get_connection(self, supervisor_uri):
uri = supervisor_uri or 'http://'
try:
server_connection = xmlrpclib.ServerProxy(uri)
return server_connection
except Exception as e:
log.error(traceback.format_exc())
raise
def get_master_log(self, connection, offset, length):
self._verify_connection(connection)
return connection.supervisor.readLog(offset, length)
def get_master_state(self, connection):
self._verify_connection(connection)
_data = connection.supervisor.getState()
_data.update({'pid': connection.supervisor.getPID()})
_data.update({'id': connection.supervisor.getIdentification()})
_data.update({'ver': connection.supervisor.getSupervisorVersion()})
return _data
def get_group_processes(self, connection, groupid):
self._verify_connection(connection)
res = []
for data in connection.supervisor.getAllProcessInfo():
if data['group'] == groupid:
res.append(data)
return res
def get_process_info(self, connection, procid):
self._verify_connection(connection)
return connection.supervisor.getProcessInfo(procid)
def read_process_log(self, connection, procid, offset, length):
self._verify_connection(connection)
if procid == SUPERVISOR_MASTER:
log = self.get_master_log(connection, offset, length)
else:
log = connection.supervisor.readProcessLog(procid, offset, length)
# make sure we just return whole lines not to confuse people
return ''.join(log.splitlines(1)[1:])