Cosmin Poieana 92bdd3fce2 Add support for OpenNebula meta-data
All the needed details are taken from a context script file
found on a ISO mounted inside the VM.

Change-Id: I2259159ea09e03e17a0c98d2fe7039f597be9190
2014-11-26 22:22:15 +02:00

58 lines
2.1 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.
from oslo.config import cfg
from cloudbaseinit import exception
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.utils import classloader
opts = [
cfg.ListOpt(
'metadata_services',
default=[
'cloudbaseinit.metadata.services.httpservice.HttpService',
'cloudbaseinit.metadata.services.configdrive.ConfigDriveService',
'cloudbaseinit.metadata.services.ec2service.EC2Service',
'cloudbaseinit.metadata.services.maasservice.MaaSHttpService',
'cloudbaseinit.metadata.services.cloudstack.CloudStack',
'cloudbaseinit.metadata.services'
'.opennebulaservice.OpenNebulaService',
],
help='List of enabled metadata service classes, '
'to be tested for availability in the provided order. '
'The first available service will be used to retrieve '
'metadata')
]
CONF = cfg.CONF
CONF.register_opts(opts)
LOG = logging.getLogger(__name__)
def get_metadata_service():
# Return the first service that loads correctly
cl = classloader.ClassLoader()
for class_path in CONF.metadata_services:
service = cl.load_class(class_path)()
try:
if service.load():
return service
except Exception as ex:
LOG.error("Failed to load metadata service '%s'" % class_path)
LOG.exception(ex)
raise exception.CloudbaseInitException("No available service found")