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# Copyright (c) 2022, Red Hat, Inc.
# 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.
from oslo_config import cfg
_opts = [
cfg.StrOpt('lock_path',
default=None, # Set by set_defaults method below on setup
help='Directory to use for os-brick lock files. Defaults to '
'oslo_concurrency.lock_path which is a sensible default '
'for compute nodes, but not for HCI deployments or '
'controllers where Glance uses Cinder as a backend, as '
'locks should use the same directory.'),
cfg.IntOpt('wait_mpath_device_attempts',
default=4,
min=1,
help='Number of attempts for the multipath device to be ready '
'for I/O after it was created. Readiness is checked with '
'``multipath -C``. See related '
'``wait_mpath_device_interval`` config option.'),
cfg.IntOpt('wait_mpath_device_interval',
default=1,
min=1,
help='Interval value to wait for multipath device to be ready '
'for I/O. Max number of attempts is set in '
'``wait_mpath_device_attempts``. Time in seconds to wait '
'for each retry is ``base ^ attempt * interval``, so for '
'4 attempts (1 attempt 3 retries) and 1 second interval '
'will yield: 2, 4 and 8 seconds. Note that there is no '
'wait before first attempt.'),
]
cfg.CONF.register_opts(_opts, group='os_brick')
def list_opts():
"""oslo.config.opts entrypoint for sample config generation."""
return [('os_brick', _opts)]
def set_defaults(conf=cfg.CONF):
"""Set default values that depend on other libraries.
Service configuration options must have been initialized before this call
because oslo's lock_path doesn't have a value before that.
Called from both os_brick setup and from the oslo.config.opts entrypoint
for sample config generation.
"""
conf.set_default('lock_path', conf.oslo_concurrency.lock_path, 'os_brick')
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