old_contents: # Copyright (c) 2014 Canonical ltd
  # All Rights Reserved.
  #
  #    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.
  
  import grp
  import getpass
  import pwd
  import os
  
  
  from oslo.config import cfg
  
  from nova.openstack.common import log as logging
  from nova import context as nova_context
  from nova import objects
  from nova import utils
  
  LOG = logging.getLogger(__name__)
  
  
  CONF = cfg.CONF
  
  
  def write_lxc_usernet(instance, bridge, user=None, count=1):
      if user is None:
          user = getpass.getuser()
      utils.execute('lxc-usernet-manage', 'set', user, bridge, str(count),
                    run_as_root=True, check_exit_code=[0])
  
  def parse_subfile(name, fname):
      line = None
      with open(fname, "r") as fp:
          for cline in fp:
              if cline.startswith(name + ":"):
                  line = cline
                  break
              if line is None:
                  raise ValueError("%s not found in %s" % (name, fname))
              toks = line.split(":")
      return (toks[1], toks[2])
  
  def get_container_config(instance):
      return os.path.join(CONF.lxd.lxd_root_dir, instance['uuid'], 'config')
  
  
  def get_container_rootfs(instance):
      return os.path.join(CONF.lxd.lxd_root_dir,instance['uuid'], 'rootfs')
  
  def get_container_logfile(instance):
          return os.path.join(CONF.lxd.lxd_root_dir, instance['uuid'],
                          'container.logfile')
  
  def get_container_console(instance):
      return os.path.join(CONF.lxd.lxd_root_dir, instance['uuid'],
                          'container.console')
  
new_contents: # Copyright (c) 2014 Canonical ltd
  # All Rights Reserved.
  #
  #    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.
  
  import grp
  import getpass
  import pwd
  import os
  
  
  from oslo.config import cfg
  from nova.i18n import _
  
  from nova.openstack.common import log as logging
  from nova import context as nova_context
  from nova import objects
  from nova import utils
  
  LOG = logging.getLogger(__name__)
  
  
  CONF = cfg.CONF
  
  
  def write_lxc_usernet(instance, bridge, user=None, count=1):
      if user is None:
          user = getpass.getuser()
      utils.execute('lxc-usernet-manage', 'set', user, bridge, str(count),
                    run_as_root=True, check_exit_code=[0])
  
  def parse_subfile(name, fname):
      line = None
      with open(fname, "r") as fp:
          for cline in fp:
              if cline.startswith(name + ":"):
                  line = cline
                  break
          if line is None:
              raise ValueError("%s not found in %s" % (name, fname))
          toks = line.split(":")
      return (toks[1], toks[2])
  
  def get_container_config(instance):
      return os.path.join(CONF.lxd.lxd_root_dir, instance['uuid'], 'config')
  
  
  def get_container_rootfs(instance):
      return os.path.join(CONF.lxd.lxd_root_dir,instance['uuid'], 'rootfs')
  
  def get_container_logfile(instance):
          return os.path.join(CONF.lxd.lxd_root_dir, instance['uuid'],
                          'container.logfile')
  
  def get_container_console(instance):
      return os.path.join(CONF.lxd.lxd_root_dir, instance['uuid'],
                          'container.console')
  
subject: Fix formatting