vmware-nsx/vmware_nsx/services/flowclassifier/nsx_v/utils.py
Adit Sarfaty 3009f37757 Integration with neutron-lib plugin directory
Co-authored-by: Armando Migliaccio <armamig@gmail.com>
Change-Id: I7c7efbaa7a53f8d244f1b19ea3a7c8a8900602be
Depends-on: I7331e914234c5f0b7abe836604fdd7e4067551cf
Depends-on: Ia91dfbf9d93e19b43c0dd0b58b95fc0080b0ad7c
Depends-on: I48cd9257f419ad949ba0cecc9aca98a624ca4dcc
2016-11-23 20:18:17 +00:00

66 lines
2.2 KiB
Python

# Copyright 2016 VMware, Inc.
#
# 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.
from neutron_lib.plugins import directory
from oslo_log import log as logging
LOG = logging.getLogger(__name__)
SERVICE_INSERTION_SG_NAME = 'Service Insertion Security Group'
SERVICE_INSERTION_RESOURCE = 'Service Insertion'
# Using the constant defined here to avoid the need to clone networking-sfc
# if the driver is not used.
FLOW_CLASSIFIER_EXT = "flow_classifier"
class NsxvServiceInsertionHandler(object):
def __init__(self, core_plugin):
super(NsxvServiceInsertionHandler, self).__init__()
self._nsxv = core_plugin.nsx_v
self._initialized = False
def _initialize_handler(self):
if not self._initialized:
self._enabled = False
self._sg_id = None
if self.is_service_insertion_enabled():
self._enabled = True
self._sg_id = self.get_service_inserion_sg_id()
self._initialized = True
def is_service_insertion_enabled(self):
# Note - this cannot be called during init, since the manager is busy
if (directory.get_plugin(FLOW_CLASSIFIER_EXT)):
return True
return False
def get_service_inserion_sg_id(self):
# Note - this cannot be called during init, since the nsxv flow
# classifier driver creates this group
return self._nsxv.vcns.get_security_group_id(
SERVICE_INSERTION_SG_NAME)
@property
def enabled(self):
self._initialize_handler()
return self._enabled
@property
def sg_id(self):
self._initialize_handler()
return self._sg_id