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# Copyright 2016 Mirantis, 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.
import glob
import os
from oslo_config import cfg
from oslo_log import log as logging
CONF = cfg.CONF
LOG = logging.getLogger(__name__)
coordination_opts = [
cfg.StrOpt('backend_url',
secret=True,
help='The backend URL to use for distributed coordination. '
'Note that the etcd3gw driver should be used when '
'ngs_batch_requests is True'),
cfg.IntOpt('acquire_timeout',
min=0,
default=60,
help='Timeout in seconds after which an attempt to grab a lock '
'is failed. Value of 0 is forever.'),
]
ngs_opts = [
cfg.StrOpt('session_log_file',
default=None,
help='Netmiko session log file.'),
]
CONF.register_opts(coordination_opts, group='ngs_coordination')
CONF.register_opts(ngs_opts, group='ngs')
def config_files():
"""Generate which yields all config files in the required order"""
for config_file in CONF.config_file:
yield config_file
for config_dir in CONF.config_dir:
config_dir_glob = os.path.join(config_dir, '*.conf')
for config_file in sorted(glob.glob(config_dir_glob)):
yield config_file
def get_devices():
"""Parse supplied config files and fetch defined compatible devices."""
device_tag = 'genericswitch:'
devices = {}
for filename in config_files():
LOG.debug(f'Searching for genericswitch config in: {filename}')
sections = {}
parser = cfg.ConfigParser(filename, sections)
try:
parser.parse()
except IOError:
continue
for parsed_item, parsed_value in sections.items():
if parsed_item.startswith(device_tag):
LOG.debug(f'Found genericswitch config: {parsed_item}')
dev_id = parsed_item.partition(device_tag)[2]
device_cfg = {k: v[0] for k, v
in parsed_value.items()}
devices[dev_id] = device_cfg
return devices
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