ifupdown2/ifupdown/config.py

   1 #!/usr/bin/python
   2 #
   3 # Copyright 2017 Cumulus Networks, Inc. All rights reserved.
   4 # Authors:
   5 #           Julien Fortin, julien@cumulusnetworks.com
   6 #
   7 # ifupdown2 --
   8 #    tool to configure network interfaces
   9 #
  10
  11 import os
  12 import resource
  13
  14 IFUPDOWN2_ADDON_DROPIN_FOLDER = '/usr/share/ifupdown2/addons'
  15
  16 try:
  17     # ifupdown2/ifupdown/config.py -> we need to use dirname twice.
  18     ADDON_MODULES_DIR = ['%s/addons' % (os.path.dirname(os.path.dirname(os.path.realpath(__file__))))]
  19
  20     if ADDON_MODULES_DIR[0] != IFUPDOWN2_ADDON_DROPIN_FOLDER:
  21         ADDON_MODULES_DIR.append(IFUPDOWN2_ADDON_DROPIN_FOLDER)
  22 except Exception as e:
  23     print "debug: error resolving ifupdown2 addons module directory: %s" % str(e)
  24     ADDON_MODULES_DIR = [IFUPDOWN2_ADDON_DROPIN_FOLDER]
  25
  26 __version__ = ''
  27
  28
  29 def get_configuration_file_real_path(path_to_file):
  30     """
  31     When install via pypi or `pip install .` ifupdown2 is install in a virtualenv
  32     config file that should be installed in /etc/network/ifupdown2 end-up being
  33     installed in /usr/local/lib/python2.7/dist-packages/etc/network/ifupdown2/
  34     """
  35     if not os.path.exists(path_to_file):
  36         # we will try to resolve the location of our conf file
  37         # otherwise default to the input argument
  38         package_dir = os.path.dirname(os.path.realpath(__file__))
  39         parent_dir = os.path.dirname(package_dir)
  40         resolved_path = '%s%s' % (parent_dir, path_to_file)
  41
  42         if os.path.exists(resolved_path):
  43             return resolved_path
  44
  45     return path_to_file
  46
  47
  48 IFUPDOWN2_CONF_PATH = get_configuration_file_real_path('/etc/network/ifupdown2/ifupdown2.conf')
  49 ADDONS_CONF_PATH = get_configuration_file_real_path('/etc/network/ifupdown2/addons.conf')
  50
  51 resource.setrlimit(resource.RLIMIT_CORE, (0, 0))