X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=rwcal%2Frift%2Fcal%2Fserver%2Fserver.py;fp=rwcal%2Frift%2Fcal%2Fserver%2Fserver.py;h=ef8b0d4dd460fefd01824800fd9c1e94989d6d9f;hb=6f07e6f33f751ab4ffe624f6037f887b243bece2;hp=0000000000000000000000000000000000000000;hpb=72a563886272088feb7cb52e4aafbe6d2c580ff9;p=osm%2FSO.git diff --git a/rwcal/rift/cal/server/server.py b/rwcal/rift/cal/server/server.py new file mode 100644 index 00000000..ef8b0d4d --- /dev/null +++ b/rwcal/rift/cal/server/server.py @@ -0,0 +1,151 @@ +""" +# +# Copyright 2016 RIFT.IO Inc +# +# 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. +# + +@file cal_server.py +@author Austin Cormier(austin.cormier@riftio.com) +@author Varun Prasad(varun.prasad@riftio.com) +@date 2016-06-14 +""" + +import asyncio +import logging +import os +import signal +import sys + +import tornado +import tornado.httpserver +import tornado.web +import tornado.platform.asyncio + +import gi +gi.require_version('RwcalYang', '1.0') +gi.require_version('RwCal', '1.0') +gi.require_version('RwLog', '1.0') +gi.require_version('RwTypes', '1.0') +from gi.repository import ( + RwcalYang, + RwLog +) + +import rw_peas +import rift.tasklets +import rift.rwcal.cloudsim.net +import rift.rwcal.cloudsim.lvm as lvm +import rift.rwcal.cloudsim.lxc as lxc +import rift.rwcal.cloudsim.shell as shell + +from . import app + +logger = logging.getLogger(__name__) + +if sys.version_info < (3, 4, 4): + asyncio.ensure_future = asyncio.async + + +class CalServer(): + HTTP_PORT = 9002 + cal_interface = None + + @staticmethod + def verify_requirements(log): + """ + Check if all the requirements are met + 1. bridgeutils should be installed + 2. The user should be root + """ + try: + shell.command('/usr/sbin/brctl show') + except shell.ProcessError: + log.exception('/usr/sbin/brctl command not found, please install ' + 'bridge-utils (yum install bridge-utils)') + sys.exit(1) + + if os.geteuid() != 0: + log.error("User should be root to start the server.") + sys.exit(1) + + def __init__(self, logging_level=logging.DEBUG): + self.app = None + self.server = None + self.log_hdl = RwLog.Ctx.new("a") + self.log = logger + self.log.setLevel(logging_level) + + def get_cal_interface(self): + self.log.debug("Creating CAL interface.") + if CalServer.cal_interface is None: + plugin = rw_peas.PeasPlugin('rwcal_cloudsim', 'RwCal-1.0') + engine, info, extension = plugin() + + CalServer.cal_interface = plugin.get_interface("Cloud") + CalServer.cal_interface.init(self.log_hdl) + + return CalServer.cal_interface + + def cleanup(self): + self.log.info("Cleaning up resources and backing store.") + for container in lxc.containers(): + self.log.debug("Stopping {}".format(container)) + lxc.stop(container) + + for container in lxc.containers(): + lxc.destroy(container) + + lvm.destroy('rift') + + + def start(self): + """Start the server.""" + + cal = self.get_cal_interface() + account = RwcalYang.CloudAccount(account_type="cloudsim") + + tornado.platform.asyncio.AsyncIOMainLoop().install() + loop = asyncio.get_event_loop() + + self.app = app.CalProxyApp(self.log, loop, cal, account) + self.server = tornado.httpserver.HTTPServer(self.app) + + self.log.info("Starting Cal Proxy Http Server on port %s", + CalServer.HTTP_PORT) + self.server.listen(CalServer.HTTP_PORT) + + def startup(): + self.log.info("Creating a default network") + rift.rwcal.cloudsim.net.virsh_initialize_default() + self.log.info("Creating backing store") + lvm.create('rift') + + loop.add_signal_handler(signal.SIGHUP, self.cleanup) + loop.add_signal_handler(signal.SIGTERM, self.cleanup) + + try: + loop.run_in_executor(None, startup) + loop.run_forever() + except KeyboardInterrupt: + self.cleanup() + except Exception as exc: + self.log.exception(exc) + + + def stop(self): + try: + self.server.stop() + except Exception: + self.log.exception("Caught Exception in LP stop:", sys.exc_info()[0]) + raise