src/emuvim/examples/osm_default_daemon_topology_2_pop.py

   1 """
   2 Copyright (c) 2017 SONATA-NFV and Paderborn University
   3 ALL RIGHTS RESERVED.
   4
   5 Licensed under the Apache License, Version 2.0 (the "License");
   6 you may not use this file except in compliance with the License.
   7 You may obtain a copy of the License at
   8
   9     http://www.apache.org/licenses/LICENSE-2.0
  10
  11 Unless required by applicable law or agreed to in writing, software
  12 distributed under the License is distributed on an "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 See the License for the specific language governing permissions and
  15 limitations under the License.
  16
  17 Neither the name of the SONATA-NFV, Paderborn University
  18 nor the names of its contributors may be used to endorse or promote
  19 products derived from this software without specific prior written
  20 permission.
  21
  22 This work has been performed in the framework of the SONATA project,
  23 funded by the European Commission under Grant number 671517 through
  24 the Horizon 2020 and 5G-PPP programmes. The authors would like to
  25 acknowledge the contributions of their colleagues of the SONATA
  26 partner consortium (www.sonata-nfv.eu).
  27 """
  28 import logging
  29 import time
  30 import signal
  31 from mininet.log import setLogLevel
  32 from emuvim.dcemulator.net import DCNetwork
  33 from emuvim.api.rest.rest_api_endpoint import RestApiEndpoint
  34 from emuvim.api.openstack.openstack_api_endpoint import OpenstackApiEndpoint
  35 from mininet.link import TCLink
  36
  37 logging.basicConfig(level=logging.INFO)
  38 setLogLevel('info')  # set Mininet loglevel
  39 logging.getLogger('werkzeug').setLevel(logging.DEBUG)
  40 logging.getLogger('api.openstack.base').setLevel(logging.DEBUG)
  41 logging.getLogger('api.openstack.compute').setLevel(logging.DEBUG)
  42 logging.getLogger('api.openstack.keystone').setLevel(logging.DEBUG)
  43 logging.getLogger('api.openstack.nova').setLevel(logging.DEBUG)
  44 logging.getLogger('api.openstack.neutron').setLevel(logging.DEBUG)
  45 logging.getLogger('api.openstack.heat').setLevel(logging.DEBUG)
  46 logging.getLogger('api.openstack.heat.parser').setLevel(logging.DEBUG)
  47 logging.getLogger('api.openstack.glance').setLevel(logging.DEBUG)
  48 logging.getLogger('api.openstack.helper').setLevel(logging.DEBUG)
  49
  50 class DaemonTopology(object):
  51     """
  52     Topology with two datacenters:
  53
  54         dc1 <-- 50ms --> dc2
  55     """
  56
  57     def __init__(self):
  58         self.running = True
  59         signal.signal(signal.SIGINT, self._stop_by_signal)
  60         signal.signal(signal.SIGTERM, self._stop_by_signal)
  61         # create and start topology
  62         self.create_topology()
  63         self.start_topology()
  64         self.daemonize()
  65         self.stop_topology()
  66
  67     def create_topology(self):
  68         self.net = DCNetwork(monitor=False, enable_learning=True)
  69         self.dc1 = self.net.addDatacenter("dc1")
  70         self.dc2 = self.net.addDatacenter("dc2")
  71         self.net.addLink(self.dc1, self.dc2, cls=TCLink, delay="50ms")
  72         # add OpenStack-like APIs to the emulated DC
  73         self.api1 = OpenstackApiEndpoint("0.0.0.0", 6001)
  74         self.api1.connect_datacenter(self.dc1)
  75         self.api1.connect_dc_network(self.net)
  76         self.api2 = OpenstackApiEndpoint("0.0.0.0", 6002)
  77         self.api2.connect_datacenter(self.dc2)
  78         self.api2.connect_dc_network(self.net)
  79         # add the command line interface endpoint to the emulated DC (REST API)
  80         self.rapi1 = RestApiEndpoint("0.0.0.0", 5001)
  81         self.rapi1.connectDCNetwork(self.net)
  82         self.rapi1.connectDatacenter(self.dc1)
  83         self.rapi1.connectDatacenter(self.dc2)
  84
  85     def start_topology(self):
  86         self.api1.start()
  87         self.api2.start()
  88         self.rapi1.start()
  89         self.net.start()
  90
  91     def daemonize(self):
  92         print("Daemonizing vim-emu. Send SIGTERM or SIGKILL to stop.")
  93         while self.running:
  94             time.sleep(1)
  95
  96     def _stop_by_signal(self, signum, frame):
  97         print("Received SIGNAL {}. Stopping.".format(signum))
  98         self.running = False
  99
 100     def stop_topology(self):
 101         self.api1.stop()
 102         self.api2.stop()
 103         self.rapi1.stop()
 104         self.net.stop()
 105
 106
 107 def main():
 108     t = DaemonTopology()
 109
 110
 111 if __name__ == '__main__':
 112     main()