d9d38dd3b2
I only just moved logging from nova to common, so behavior should remain the same. Change-Id: I1d7304ca200f9d024bb7244d25be2f9a670318fb
129 lines
4.2 KiB
Python
Executable File
129 lines
4.2 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2010 United States Government as represented by the
|
|
# Administrator of the National Aeronautics and Space Administration.
|
|
# 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.
|
|
|
|
"""
|
|
Handle lease database updates from DHCP servers.
|
|
"""
|
|
|
|
import gettext
|
|
import os
|
|
import sys
|
|
|
|
# If ../nova/__init__.py exists, add ../ to Python search path, so that
|
|
# it will override what happens to be installed in /usr/(local/)lib/python...
|
|
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
|
|
os.pardir,
|
|
os.pardir))
|
|
if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
|
|
sys.path.insert(0, possible_topdir)
|
|
|
|
gettext.install('nova', unicode=1)
|
|
|
|
from nova import context
|
|
from nova import db
|
|
from nova import flags
|
|
from nova.network import linux_net
|
|
from nova.openstack.common import importutils
|
|
from nova.openstack.common import log as logging
|
|
from nova.openstack.common import rpc
|
|
from nova import utils
|
|
|
|
FLAGS = flags.FLAGS
|
|
|
|
LOG = logging.getLogger('nova.dhcpbridge')
|
|
|
|
|
|
def add_lease(mac, ip_address):
|
|
"""Set the IP that was assigned by the DHCP server."""
|
|
if FLAGS.fake_rabbit:
|
|
LOG.debug(_("leasing ip"))
|
|
network_manager = importutils.import_object(FLAGS.network_manager)
|
|
network_manager.lease_fixed_ip(context.get_admin_context(),
|
|
ip_address)
|
|
else:
|
|
rpc.cast(context.get_admin_context(),
|
|
"%s.%s" % (FLAGS.network_topic, FLAGS.host),
|
|
{"method": "lease_fixed_ip",
|
|
"args": {"address": ip_address}})
|
|
|
|
|
|
def old_lease(mac, ip_address):
|
|
"""Called when an old lease is recognized."""
|
|
# NOTE(vish): We assume we heard about this lease the first time.
|
|
# If not, we will get it the next time the lease is
|
|
# renewed.
|
|
pass
|
|
|
|
|
|
def del_lease(mac, ip_address):
|
|
"""Called when a lease expires."""
|
|
if FLAGS.fake_rabbit:
|
|
LOG.debug(_("releasing ip"))
|
|
network_manager = importutils.import_object(FLAGS.network_manager)
|
|
network_manager.release_fixed_ip(context.get_admin_context(),
|
|
ip_address)
|
|
else:
|
|
rpc.cast(context.get_admin_context(),
|
|
"%s.%s" % (FLAGS.network_topic, FLAGS.host),
|
|
{"method": "release_fixed_ip",
|
|
"args": {"address": ip_address}})
|
|
|
|
|
|
def init_leases(network_id):
|
|
"""Get the list of hosts for a network."""
|
|
ctxt = context.get_admin_context()
|
|
network_ref = db.network_get(ctxt, network_id)
|
|
network_manager = importutils.import_object(FLAGS.network_manager)
|
|
return network_manager.get_dhcp_leases(ctxt, network_ref)
|
|
|
|
|
|
def main():
|
|
"""Parse environment and arguments and call the approproate action."""
|
|
flagfile = os.environ.get('FLAGFILE', FLAGS.dhcpbridge_flagfile)
|
|
argv = flags.parse_args(sys.argv)
|
|
logging.setup("nova")
|
|
|
|
if int(os.environ.get('TESTING', '0')):
|
|
from nova.tests import fake_flags
|
|
|
|
action = argv[1]
|
|
if action in ['add', 'del', 'old']:
|
|
mac = argv[2]
|
|
ip = argv[3]
|
|
msg = (_("Called '%(action)s' for mac '%(mac)s' with ip '%(ip)s'") %
|
|
{"action": action,
|
|
"mac": mac,
|
|
"ip": ip})
|
|
LOG.debug(msg)
|
|
globals()[action + '_lease'](mac, ip)
|
|
else:
|
|
try:
|
|
network_id = int(os.environ.get('NETWORK_ID'))
|
|
except TypeError:
|
|
LOG.error(_("Environment variable 'NETWORK_ID' must be set."))
|
|
sys.exit(1)
|
|
|
|
print init_leases(network_id)
|
|
|
|
rpc.cleanup()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|