policy_module/osm_policy_module/cmd/policy_module_agent.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Copyright 2018 Whitestack, LLC
   4 # *************************************************************
   5
   6 # This file is part of OSM Monitoring module
   7 # All Rights Reserved to Whitestack, LLC
   8
   9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
  10 # not use this file except in compliance with the License. You may obtain
  11 # a copy of the License at
  12
  13 #         http://www.apache.org/licenses/LICENSE-2.0
  14
  15 # Unless required by applicable law or agreed to in writing, software
  16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  18 # License for the specific language governing permissions and limitations
  19 # under the License.
  20
  21 # For those usages not covered by the Apache License, Version 2.0 please
  22 # contact: bdiaz@whitestack.com or glavado@whitestack.com
  23 ##
  24 import argparse
  25 import logging
  26 import sys
  27 import logstash
  28
  29 from osm_policy_module.core.agent import PolicyModuleAgent
  30 from osm_policy_module.core.config import Config
  31 from osm_policy_module.core.database import DatabaseManager
  32
  33
  34 def main():
  35     cfg = Config.instance()
  36     parser = argparse.ArgumentParser(prog='pm-scaling-config-agent')
  37     parser.add_argument('--config-file', nargs='?', help='Policy module agent configuration file')
  38     args = parser.parse_args()
  39     if args.config_file:
  40         cfg.load_file(args.config_file)
  41     # TODO: Handle different log levels in config
  42     if cfg.get('policy_module', 'log_dir') == 'stdout':
  43         logging.basicConfig(stream=sys.stdout,
  44                             format='%(asctime)s %(message)s',
  45                             datefmt='%m/%d/%Y %I:%M:%S %p',
  46                             level=logging.INFO)
  47     else:
  48         logging.basicConfig(filename=cfg.get('policy_module', 'log_dir') + 'pm_agent.log',
  49                             format='%(asctime)s %(message)s',
  50                             datefmt='%m/%d/%Y %I:%M:%S %p', filemode='a',
  51                             level=logging.INFO)
  52     if cfg.get('policy_module', 'enable_logstash_handler') == 'true':
  53         logstash_host = cfg.get('policy_module', 'logstash_host')
  54         logstash_port = int(cfg.get('policy_module', 'logstash_port'))
  55         root_logger = logging.getLogger()
  56         root_logger.addHandler(logstash.TCPLogstashHandler(logstash_host, logstash_port, version=1))
  57         root_logger.info("Logstash handler configured.")
  58     log = logging.getLogger(__name__)
  59     log.info("Config: %s", cfg)
  60     log.info("Syncing database...")
  61     db_manager = DatabaseManager()
  62     db_manager.create_tables()
  63     log.info("Database synced correctly.")
  64     log.info("Starting policy module agent...")
  65     agent = PolicyModuleAgent()
  66     agent.run()
  67
  68
  69 if __name__ == '__main__':
  70     main()