xos/synchronizers/new_base/xos-synchronizer.py

#!/usr/bin/env python

# Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import sys
import time

sys.path.append("/opt/xos")
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "xos.settings")

from synchronizers.new_base.backend import Backend
from synchronizers.new_base.modelaccessor import *

from xosconfig import Config
from multistructlog import create_logger
log = create_logger(Config().get("logging"))


def main():

    models_active = False
    wait = False
    while not models_active:
        try:
            _i = Instance.objects.first()
            _n = NetworkTemplate.objects.first()
            models_active = True
        except Exception as e:
            log.info("Exception", e=e)
            log.info("Waiting for data model to come up before starting...")
            time.sleep(10)
            wait = True

    if wait:
        time.sleep(
            60
        )  # Safety factor, seeing that we stumbled waiting for the data model to come up.

    log_closure = log.bind(synchronizer_name=Config().get("name"))
    backend = Backend(log=log_closure)
    backend.run()


if __name__ == "__main__":
    main()