sahara/sahara/utils/openstack/neutron.py

116 lines
3.8 KiB
Python

# Copyright (c) 2013 Hortonworks, 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.
from neutronclient.common import exceptions as n_ex
from neutronclient.neutron import client as neutron_cli
from oslo_config import cfg
from oslo_log import log as logging
from sahara import exceptions as ex
from sahara.i18n import _
from sahara.service import sessions
from sahara.utils.openstack import base
from sahara.utils.openstack import keystone
opts = [
cfg.BoolOpt('api_insecure',
default=False,
help='Allow to perform insecure SSL requests to neutron.'),
cfg.StrOpt('ca_file',
help='Location of ca certificates file to use for neutron '
'client requests.'),
cfg.StrOpt("endpoint_type",
default="internalURL",
help="Endpoint type for neutron client requests")
]
neutron_group = cfg.OptGroup(name='neutron',
title='Neutron client options')
CONF = cfg.CONF
CONF.register_group(neutron_group)
CONF.register_opts(opts, group=neutron_group)
LOG = logging.getLogger(__name__)
def client(auth=None):
if not auth:
auth = keystone.auth()
session = sessions.cache().get_session(sessions.SESSION_TYPE_NEUTRON)
neutron = neutron_cli.Client('2.0', session=session, auth=auth,
endpoint_type=CONF.neutron.endpoint_type,
region_name=CONF.os_region_name)
return neutron
class NeutronClient(object):
neutron = None
routers = {}
def __init__(self, network, token, tenant_name, auth=None):
if not auth:
auth = keystone.token_auth(token=token, project_name=tenant_name)
self.neutron = client(auth)
self.network = network
def get_router(self):
matching_router = NeutronClient.routers.get(self.network, None)
if matching_router:
LOG.debug('Returning cached qrouter')
return matching_router['id']
routers = self.neutron.list_routers()['routers']
for router in routers:
device_id = router['id']
ports = base.execute_with_retries(
self.neutron.list_ports, device_id=device_id)['ports']
port = next((port for port in ports
if port['network_id'] == self.network), None)
if port:
matching_router = router
NeutronClient.routers[self.network] = matching_router
break
if not matching_router:
raise ex.SystemError(_('Neutron router corresponding to network '
'%s is not found') % self.network)
return matching_router['id']
def get_private_network_cidrs(cluster):
neutron_client = client()
private_net = base.execute_with_retries(neutron_client.show_network,
cluster.neutron_management_network)
cidrs = []
for subnet_id in private_net['network']['subnets']:
subnet = base.execute_with_retries(
neutron_client.show_subnet, subnet_id)
cidrs.append(subnet['subnet']['cidr'])
return cidrs
def get_network(id):
try:
return base.execute_with_retries(
client().find_resource_by_id, 'network', id)
except n_ex.NotFound:
return None