3f91aabce2
Using keyword arguments makes the intent of the code clearer, due to the fact that a name is attached to a boolean value, making the reasoning about the code easier. Change-Id: I0dd05fa521ed8bbaf1c6dbd7a3e554384642c1f4
75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012 Cloudbase Solutions Srl
|
|
#
|
|
# 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 os
|
|
import shutil
|
|
import tempfile
|
|
import uuid
|
|
|
|
from oslo.config import cfg
|
|
|
|
from cloudbaseinit.metadata.services import base
|
|
from cloudbaseinit.metadata.services import baseopenstackservice
|
|
from cloudbaseinit.metadata.services.osconfigdrive import factory
|
|
from cloudbaseinit.openstack.common import log as logging
|
|
|
|
opts = [
|
|
cfg.BoolOpt('config_drive_raw_hhd', default=True,
|
|
help='Look for an ISO config drive in raw HDDs'),
|
|
cfg.BoolOpt('config_drive_cdrom', default=True,
|
|
help='Look for a config drive in the attached cdrom drives'),
|
|
]
|
|
|
|
CONF = cfg.CONF
|
|
CONF.register_opts(opts)
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class ConfigDriveService(baseopenstackservice.BaseOpenStackService):
|
|
def __init__(self):
|
|
super(ConfigDriveService, self).__init__()
|
|
self._metadata_path = None
|
|
|
|
def load(self):
|
|
super(ConfigDriveService, self).load()
|
|
|
|
target_path = os.path.join(tempfile.gettempdir(), str(uuid.uuid4()))
|
|
|
|
mgr = factory.get_config_drive_manager()
|
|
found = mgr.get_config_drive_files(target_path,
|
|
CONF.config_drive_raw_hhd,
|
|
CONF.config_drive_cdrom)
|
|
if found:
|
|
self._metadata_path = target_path
|
|
LOG.debug('Metadata copied to folder: \'%s\'' %
|
|
self._metadata_path)
|
|
return found
|
|
|
|
def _get_data(self, path):
|
|
norm_path = os.path.normpath(os.path.join(self._metadata_path, path))
|
|
try:
|
|
with open(norm_path, 'rb') as f:
|
|
return f.read()
|
|
except IOError:
|
|
raise base.NotExistingMetadataException()
|
|
|
|
def cleanup(self):
|
|
if self._metadata_path:
|
|
LOG.debug('Deleting metadata folder: \'%s\'' % self._metadata_path)
|
|
shutil.rmtree(self._metadata_path, ignore_errors=True)
|
|
self._metadata_path = None
|