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# Copyright (c) 2015 Huawei Technologies India Pvt Ltd
# 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.
import requests
from oslo_config import cfg
#from oslo_log import helpers as log_helpers
from neutron.openstack.common import log as logging
from neutron.openstack.common import jsonutils
from neutron.plugins.ml2 import driver_api as api
LOG = logging.getLogger(__name__)
ONOS_DRIVER_OPTS = [
cfg.StrOpt('path',
default='',
help=_('ONOS ReST interface URL')),
cfg.StrOpt('username',
default='',
help=_('Username for authentication.')),
cfg.StrOpt('password',
default='',
secret=True, # do not expose value in the logs
help=_('Password for authentication.'))
]
cfg.CONF.register_opts(ONOS_DRIVER_OPTS, "ml2_onos")
def send_msg(onos_path, onos_auth, msg_type, entity_path, entity=None):
"""Send message to the ONOS controller."""
path = '/'.join([onos_path, entity_path])
LOG.debug("Sending MSG (%(msg)) URL (%(path)s) JSON (%(entity)s)",
{'msg': msg_type, 'path': path, 'entity': entity})
hdr = {'Content-Type': 'application/json'}
body = jsonutils.dumps(entity, indent=2) if entity else None
req = requests.request(method=msg_type, url=path,
headers=hdr, data=body,
auth=onos_auth)
# Let's raise voice for an error
req.raise_for_status()
class ONOSMechanismDriver(api.MechanismDriver):
"""Open Networking Operating System ML2 Driver for Neutron.
Code which makes communication between ONOS and OpenStack Neutron
possible.
"""
def __init__(self):
conf = cfg.CONF.ml2_onos
self.onos_path = conf.url_path
self.onos_auth = (conf.username, conf.password)
def initialize(self):
# No action required as of now. Can be extended in
# the future if required.
pass
#@log_helpers.log_method_call
def create_network_postcommit(self, context):
entity_path = 'networks/' + context.current['id']
resource = context.current.copy()
send_msg(self.onos_path, self.onos_auth, 'post',
entity_path, {'network': resource})
#@log_helpers.log_method_call
def update_network_postcommit(self, context):
entity_path = 'networks/' + context.current['id']
resource = context.current.copy()
send_msg(self.onos_path, self.onos_auth, 'put',
entity_path, {'network': resource})
#@log_helpers.log_method_call
def delete_network_postcommit(self, context):
entity_path = 'networks/' + context.current['id']
send_msg(self.onos_path, self.onos_auth, 'delete',
entity_path)
#@log_helpers.log_method_call
def create_subnet_postcommit(self, context):
entity_path = 'subnets/' + context.current['id']
resource = context.current.copy()
send_msg(self.onos_path, self.onos_auth, 'post',
entity_path, {'subnet': resource})
#@log_helpers.log_method_call
def update_subnet_postcommit(self, context):
entity_path = 'subnets/' + context.current['id']
resource = context.current.copy()
send_msg(self.onos_path, self.onos_auth, 'put',
entity_path, {'subnet': resource})
#@log_helpers.log_method_call
def delete_subnet_postcommit(self, context):
entity_path = 'subnets/' + context.current['id']
send_msg(self.onos_path, self.onos_auth, 'delete',
entity_path)
#@log_helpers.log_method_call
def create_port_postcommit(self, context):
entity_path = 'ports/' + context.current['id']
resource = context.current.copy()
send_msg(self.onos_path, self.onos_auth, 'post',
entity_path, {'port': resource})
#@log_helpers.log_method_call
def update_port_postcommit(self, context):
entity_path = 'ports/' + context.current['id']
resource = context.current.copy()
send_msg(self.onos_path, self.onos_auth, 'put',
entity_path, {'port': resource})
#@log_helpers.log_method_call
def delete_port_postcommit(self, context):
entity_path = 'ports/' + context.current['id']
send_msg(self.onos_path, self.onos_auth, 'delete',
entity_path)
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