src/emuvim/examples/resource_model_demo_topology.py

   1 """
   2 Copyright (c) 2015 SONATA-NFV
   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 [, ANY ADDITIONAL AFFILIATION]
  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 """
  29 A simple topology to test resource model support.
  30 """
  31
  32 import logging
  33 import time
  34 import os
  35 from mininet.log import setLogLevel
  36 from mininet.node import Controller
  37 from emuvim.dcemulator.net import DCNetwork
  38 from emuvim.api.zerorpc.compute import ZeroRpcApiEndpoint
  39 from emuvim.api.sonata import SonataDummyGatekeeperEndpoint
  40 from emuvim.dcemulator.resourcemodel.upb.simple import UpbSimpleCloudDcRM, UpbOverprovisioningCloudDcRM
  41
  42 logging.basicConfig(level=logging.INFO)
  43
  44
  45 RESOURCE_LOG_PATH = "resource.log"
  46
  47
  48 def create_topology1():
  49     cleanup()
  50     # create topology
  51     # use a maximum of 50% cpu time for containers added to data centers
  52     net = DCNetwork(dc_emulation_max_cpu=0.5, controller=Controller)
  53     # add some data centers and create a topology
  54     dc1 = net.addDatacenter("dc1", resource_log_path=RESOURCE_LOG_PATH)
  55     dc2 = net.addDatacenter("dc2", resource_log_path=RESOURCE_LOG_PATH)
  56     s1 = net.addSwitch("s1")
  57     net.addLink(dc1, s1, delay="10ms")
  58     net.addLink(dc2, s1, delay="20ms")
  59
  60     # create and assign resource models for each DC
  61     rm1 = UpbSimpleCloudDcRM(max_cu=4, max_mu=1024)
  62     rm2 = UpbOverprovisioningCloudDcRM(max_cu=4)
  63     dc1.assignResourceModel(rm1)
  64     dc2.assignResourceModel(rm2)
  65
  66     # add the command line interface endpoint to each DC
  67     zapi1 = ZeroRpcApiEndpoint("0.0.0.0", 4242)
  68     zapi1.connectDatacenter(dc1)
  69     zapi1.connectDatacenter(dc2)
  70     # run API endpoint server (in another thread, don't block)
  71     zapi1.start()
  72
  73     # start the emulation platform
  74     net.start()
  75     print "Wait a moment and allocate some compute start some compute resources..."
  76     time.sleep(2)
  77     dc1.startCompute("vnf1")
  78     dc1.startCompute("vnf2", flavor_name="tiny")
  79     dc1.startCompute("vnf3", flavor_name="small")
  80     dc2.startCompute("vnf4", flavor_name="medium")
  81     dc2.startCompute("vnf5", flavor_name="medium")
  82     dc2.startCompute("vnf6", flavor_name="medium")
  83     print "... done."
  84     time.sleep(5)
  85     print "Removing instances ..."
  86     dc1.stopCompute("vnf1")
  87     dc2.stopCompute("vnf4")
  88     print "... done"
  89     net.CLI()
  90     net.stop()
  91
  92
  93 def cleanup():
  94     try:
  95         os.remove(RESOURCE_LOG_PATH)
  96     except OSError:
  97         pass
  98
  99
 100 def main():
 101     setLogLevel('info')  # set Mininet loglevel
 102     create_topology1()
 103
 104
 105 if __name__ == '__main__':
 106     main()