| #!/usr/bin/env python |
| # |
| # Copyright 2016 the original author or authors. |
| # |
| # 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. |
| # |
| |
| """Virtual OLT Hardware Abstraction main entry point""" |
| |
| import argparse |
| import os |
| import time |
| import yaml |
| |
| from structlog_setup import setup_logging |
| from coordinator import Coordinator |
| from northbound.rest.healt_check import init_site |
| |
| |
| defs = dict( |
| consul=os.environ.get('CONSUL', 'localhost:8500'), |
| instance_id=os.environ.get('INSTANCE_ID', os.environ.get('HOSTNAME', '1')), |
| config=os.environ.get('CONFIG', './voltha.yml'), |
| interface=os.environ.get('INTERFACE', 'eth0'), |
| internal_host_address=os.environ.get('INTERNAL_HOST_ADDRESS', 'localhost'), |
| external_host_address=os.environ.get('EXTERNAL_HOST_ADDRESS', 'localhost'), |
| fluentd=os.environ.get('FLUENTD', None) |
| ) |
| |
| |
| def parse_args(): |
| |
| parser = argparse.ArgumentParser() |
| |
| parser.add_argument('-c', '--config', dest='config', action='store', |
| default=defs['config'], |
| help='Path to voltha.yml config file (default: %s). ' |
| 'If relative, it is relative to main.py of voltha.' % defs['config']) |
| |
| parser.add_argument('-C', '--consul', dest='consul', action='store', |
| default=defs['consul'], |
| help='<hostname>:<port> to consul agent (default: %s)' % defs['consul']) |
| |
| parser.add_argument('-E', '--external-host-address', dest='external_host_address', action='store', |
| default=defs['external_host_address'], |
| help='<hostname> or <ip> at which Voltha is reachable from outside the cluster' |
| '(default: %s)' % defs['external_host_address']) |
| |
| parser.add_argument('-F', '--fluentd', dest='fluentd', action='store', |
| default=defs['fluentd'], |
| help='<hostname>:<port> to fluentd server (default: %s).' |
| '(If not specified (None), the address from the config file is used' |
| % defs['fluentd']) |
| |
| parser.add_argument('-H', '--internal-host-address', dest='internal_host_address', action='store', |
| default=defs['internal_host_address'], |
| help='<hostname> or <ip> at which Voltha is reachable from inside the cluster' |
| '(default: %s)' % defs['internal_host_address']) |
| |
| parser.add_argument('-i', '--instance-id', dest='instance_id', action='store', |
| default=defs['instance_id'], |
| help='unique string id of this voltha instance (default: %s)' % defs['interface']) |
| |
| # TODO placeholder, not used yet |
| parser.add_argument('-I', '--interface', dest='interface', action='store', |
| default=defs['interface'], |
| help='ETH interface to send (default: %s)' % defs['interface']) |
| |
| parser.add_argument('-n', '--no-banner', dest='no_banner', action='store_true', default=False, |
| help='omit startup banner log lines') |
| |
| parser.add_argument('-N', '--no-heartbeat', dest='no_heartbeat', action='store_true', default=False, |
| help='do not emit periodic heartbeat log messages') |
| |
| parser.add_argument('-q', '--quiet', dest='quiet', action='store_true', default=False, |
| help="suppress debug and info logs") |
| |
| parser.add_argument('-v', '--verbose', dest='verbose', action='store_true', default=False, |
| help='enable verbose logging') |
| |
| return parser.parse_args() |
| |
| |
| def load_config(args): |
| path = args.config |
| if path.startswith('.'): |
| dir = os.path.dirname(os.path.abspath(__file__)) |
| path = os.path.join(dir, path) |
| path = os.path.abspath(path) |
| with open(path) as fd: |
| config = yaml.load(fd) |
| return config |
| |
| |
| def print_banner(args, log): |
| log.info(' _ ______ __ ________ _____ ') |
| log.info('| | / / __ \/ / /_ __/ / / / |') |
| log.info('| | / / / / / / / / / /_/ / /| |') |
| log.info('| |/ / /_/ / /___/ / / __ / ___ |') |
| log.info('|___/\____/_____/_/ /_/ /_/_/ |_|') |
| log.info('(to stop: press Ctrl-C)') |
| |
| |
| def startup(log, args, config): |
| log.info('starting-internal-services') |
| coordinator = Coordinator( |
| internal_host_address=args.internal_host_address, |
| external_host_address=args.external_host_address, |
| instance_id=args.instance_id, |
| consul=args.consul) |
| init_site() |
| log.info('started-internal-services') |
| |
| |
| def cleanup(log): |
| """Execute before the reactor is shut down""" |
| log.info('exiting-on-keyboard-interrupt') |
| |
| |
| def start_reactor(args, log): |
| from twisted.internet import reactor |
| reactor.callWhenRunning(lambda: log.info('twisted-reactor-started')) |
| reactor.addSystemEventTrigger('before', 'shutdown', lambda: cleanup(log)) |
| reactor.run() |
| |
| |
| def start_heartbeat(log): |
| |
| t0 = time.time() |
| t0s = time.ctime(t0) |
| |
| def heartbeat(): |
| log.info(status='up', since=t0s, uptime=time.time() - t0) |
| |
| from twisted.internet.task import LoopingCall |
| lc = LoopingCall(heartbeat) |
| lc.start(10) |
| |
| |
| def main(): |
| |
| args = parse_args() |
| |
| config = load_config(args) |
| |
| log = setup_logging(config.get('logging', {}), fluentd=args.fluentd) |
| |
| if not args.no_banner: |
| print_banner(args, log) |
| |
| if not args.no_heartbeat: |
| start_heartbeat(log) |
| |
| startup(log, args, config) |
| |
| start_reactor(args, log) # will not return except Keyboard interrupt |
| |
| |
| if __name__ == '__main__': |
| main() |