150 lines
5.8 KiB
Python
150 lines
5.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 Nicira Networks, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Routines for configuring Neutron
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"""
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import os
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from oslo.config import cfg
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from paste import deploy
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from neutron.api.v2 import attributes
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from neutron.common import utils
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from neutron.openstack.common.db.sqlalchemy import session as db_session
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from neutron.openstack.common import log as logging
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from neutron.openstack.common import rpc
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from neutron.version import version_info as neutron_version
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LOG = logging.getLogger(__name__)
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core_opts = [
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cfg.StrOpt('bind_host', default='0.0.0.0',
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help=_("The host IP to bind to")),
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cfg.IntOpt('bind_port', default=9696,
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help=_("The port to bind to")),
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cfg.StrOpt('api_paste_config', default="api-paste.ini",
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help=_("The API paste config file to use")),
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cfg.StrOpt('api_extensions_path', default="",
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help=_("The path for API extensions")),
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cfg.StrOpt('policy_file', default="policy.json",
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help=_("The policy file to use")),
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cfg.StrOpt('auth_strategy', default='keystone',
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help=_("The type of authentication to use")),
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cfg.StrOpt('core_plugin',
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help=_("The core plugin Neutron will use")),
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cfg.ListOpt('service_plugins', default=[],
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help=_("The service plugins Neutron will use")),
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cfg.StrOpt('base_mac', default="fa:16:3e:00:00:00",
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help=_("The base MAC address Neutron will use for VIFs")),
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cfg.IntOpt('mac_generation_retries', default=16,
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help=_("How many times Neutron will retry MAC generation")),
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cfg.BoolOpt('allow_bulk', default=True,
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help=_("Allow the usage of the bulk API")),
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cfg.BoolOpt('allow_pagination', default=False,
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help=_("Allow the usage of the pagination")),
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cfg.BoolOpt('allow_sorting', default=False,
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help=_("Allow the usage of the sorting")),
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cfg.StrOpt('pagination_max_limit', default="-1",
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help=_("The maximum number of items returned in a single "
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"response, value was 'infinite' or negative integer "
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"means no limit")),
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cfg.IntOpt('max_dns_nameservers', default=5,
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help=_("Maximum number of DNS nameservers")),
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cfg.IntOpt('max_subnet_host_routes', default=20,
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help=_("Maximum number of host routes per subnet")),
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cfg.IntOpt('max_fixed_ips_per_port', default=5,
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help=_("Maximum number of fixed ips per port")),
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cfg.IntOpt('dhcp_lease_duration', default=120,
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deprecated_name='dhcp_lease_time',
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help=_("DHCP lease duration")),
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cfg.BoolOpt('dhcp_agent_notification', default=True,
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help=_("Allow sending resource operation"
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" notification to DHCP agent")),
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cfg.BoolOpt('allow_overlapping_ips', default=False,
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help=_("Allow overlapping IP support in Neutron")),
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cfg.StrOpt('host', default=utils.get_hostname(),
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help=_("The hostname Neutron is running on")),
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cfg.BoolOpt('force_gateway_on_subnet', default=False,
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help=_("Ensure that configured gateway is on subnet")),
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]
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core_cli_opts = [
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cfg.StrOpt('state_path', default='/var/lib/neutron'),
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]
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# Register the configuration options
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cfg.CONF.register_opts(core_opts)
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cfg.CONF.register_cli_opts(core_cli_opts)
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# Ensure that the control exchange is set correctly
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rpc.set_defaults(control_exchange='neutron')
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_SQL_CONNECTION_DEFAULT = 'sqlite://'
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# Update the default QueuePool parameters. These can be tweaked by the
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# configuration variables - max_pool_size, max_overflow and pool_timeout
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db_session.set_defaults(sql_connection=_SQL_CONNECTION_DEFAULT,
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sqlite_db='', max_pool_size=10,
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max_overflow=20, pool_timeout=10)
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def parse(args):
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cfg.CONF(args=args, project='neutron',
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version='%%prog %s' % neutron_version.release_string())
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# Validate that the base_mac is of the correct format
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msg = attributes._validate_regex(cfg.CONF.base_mac,
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attributes.MAC_PATTERN)
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if msg:
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msg = _("Base MAC: %s") % msg
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raise Exception(msg)
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def setup_logging(conf):
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"""Sets up the logging options for a log with supplied name.
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:param conf: a cfg.ConfOpts object
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"""
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product_name = "neutron"
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logging.setup(product_name)
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LOG.info(_("Logging enabled!"))
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def load_paste_app(app_name):
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"""Builds and returns a WSGI app from a paste config file.
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:param app_name: Name of the application to load
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:raises RuntimeError when config file cannot be located or application
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cannot be loaded from config file
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"""
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config_path = os.path.abspath(cfg.CONF.find_file(
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cfg.CONF.api_paste_config))
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LOG.info(_("Config paste file: %s"), config_path)
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try:
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app = deploy.loadapp("config:%s" % config_path, name=app_name)
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except (LookupError, ImportError):
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msg = (_("Unable to load %(app_name)s from "
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"configuration file %(config_path)s.") %
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{'app_name': app_name,
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'config_path': config_path})
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LOG.exception(msg)
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raise RuntimeError(msg)
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return app
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