src/nitsi/network.py

   1 #!/usr/bin/python3
   2
   3 import logging
   4 import os
   5
   6 logger = logging.getLogger("nitsi.network")
   7
   8 # # A class which define and undefine a virtual network based on an xml file
   9 class network():
  10     def __init__(self, libvirt_con, network_xml_file):
  11         self.log = logger.getChild(os.path.basename(os.path.dirname(network_xml_file)))
  12         self.con = libvirt_con
  13         self.network = None
  14         try:
  15             with open(network_xml_file) as fobj:
  16                 self.log.info("Reading xml file for network")
  17                 self.network_xml = fobj.read()
  18         except FileNotFoundError as error:
  19             self.log.error("No such file: {}".format(network_xml_file))
  20             raise error
  21
  22     def define(self):
  23         self.log.info("Going to define network")
  24         self.network = self.con.networkDefineXML(self.network_xml)
  25
  26         if network == None:
  27             self.log.error("Failed to define virtual network")
  28
  29     def start(self):
  30         self.log.info("Starting Network")
  31         self.network.create()
  32
  33     def undefine(self):
  34         if self.network != None:
  35             if self.network.isActive() == 1:
  36                 self.log.info("Shutting down network")
  37                 self.network.destroy()
  38
  39             self.log.info("Undefining network")
  40             self.network.undefine()