oslo.messaging/oslo_messaging/opts.py
Oleksii Zamiatin f61f0c1c1b [zmq] Redis unavailability is not critical
Each time driver couldn't update from Redis
warning message is being logged and work continues
with cached targets state and on existing connections.

Change-Id: I459532f1f60fab1d4c9926e02cdc3c3c6a162047
Closes-Bug: #1610958
2016-08-16 11:29:59 +03:00

99 lines
3.5 KiB
Python

# Copyright 2014 Red Hat, Inc.
#
# 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.
__all__ = [
'list_opts'
]
import copy
import itertools
from oslo_messaging._drivers import amqp
from oslo_messaging._drivers.amqp1_driver import opts as amqp_opts
from oslo_messaging._drivers import base as drivers_base
from oslo_messaging._drivers import impl_pika
from oslo_messaging._drivers import impl_rabbit
from oslo_messaging._drivers.impl_zmq import zmq_options
from oslo_messaging._drivers.pika_driver import pika_connection_factory
from oslo_messaging._drivers.zmq_driver.matchmaker import zmq_matchmaker_redis
from oslo_messaging.notify import notifier
from oslo_messaging.rpc import client
from oslo_messaging import server
from oslo_messaging import transport
_global_opt_lists = [
drivers_base.base_opts,
zmq_options.zmq_opts,
server._pool_opts,
client._client_opts,
transport._transport_opts,
]
_opts = [
(None, list(itertools.chain(*_global_opt_lists))),
('matchmaker_redis', zmq_matchmaker_redis.matchmaker_redis_opts),
('oslo_messaging_zmq', zmq_options.zmq_opts),
('oslo_messaging_amqp', amqp_opts.amqp1_opts),
('oslo_messaging_notifications', notifier._notifier_opts),
('oslo_messaging_rabbit', list(
itertools.chain(amqp.amqp_opts, impl_rabbit.rabbit_opts,
pika_connection_factory.pika_opts,
impl_pika.pika_pool_opts, impl_pika.notification_opts,
impl_pika.rpc_opts))),
]
def list_opts():
"""Return a list of oslo.config options available in the library.
The returned list includes all oslo.config options which may be registered
at runtime by the library.
Each element of the list is a tuple. The first element is the name of the
group under which the list of elements in the second element will be
registered. A group name of None corresponds to the [DEFAULT] group in
config files.
This function is also discoverable via the 'oslo_messaging' entry point
under the 'oslo.config.opts' namespace.
The purpose of this is to allow tools like the Oslo sample config file
generator to discover the options exposed to users by this library.
:returns: a list of (group_name, opts) tuples
"""
return [(g, copy.deepcopy(o)) for g, o in _opts]
def set_defaults(conf, executor_thread_pool_size=None):
"""Set defaults for configuration variables.
Overrides default options values.
:param conf: Config instance specified to set default options in it. Using
of instances instead of a global config object prevents conflicts between
options declaration.
:type conf: oslo.config.cfg.ConfigOpts instance.
:keyword executor_thread_pool_size: Size of executor thread pool.
:type executor_thread_pool_size: int
:default executor_thread_pool_size: None
"""
if executor_thread_pool_size is not None:
conf.set_default('executor_thread_pool_size',
executor_thread_pool_size)