fa912dfcd9
This utility offers a simplify way to insert and remove network services in the path of the traffic to the server VMs, by splitting the network into two, and having the service bridge between the two networks, in the process applying the service. This model is called In-Path (Bump in the Wire) Change-Id: If7e9ad2dcb8124e7d82ac837c5b62c0d09b00bcd
79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011, Cisco Systems, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# @author: Edgar Magana, Cisco Systems, Inc.
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import logging as LOG
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from sqlalchemy.orm import exc
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import quantum.plugins.cisco.db.api as db
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from quantum.plugins.cisco.common import cisco_exceptions as c_exc
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from quantum.plugins.cisco.db import services_models
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def get_all_services_bindings():
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"""Lists all the services bindings"""
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LOG.debug("get_all_services_bindings() called")
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session = db.get_session()
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try:
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bindings = session.query(services_models.ServicesBinding).\
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all()
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return bindings
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except exc.NoResultFound:
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return []
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def get_service_bindings(service_id):
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"""Lists services bindings for a service_id"""
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LOG.debug("get_service_bindings() called")
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session = db.get_session()
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try:
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bindings = session.query(services_models.ServicesBinding).\
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filter_by(service_id=service_id).\
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one()
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return bindings
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except exc.NoResultFound:
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return []
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def add_services_binding(service_id, mngnet_id, nbnet_id, sbnet_id):
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"""Adds a services binding"""
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LOG.debug("add_services_binding() called")
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session = db.get_session()
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binding = services_models.ServicesBinding(service_id, mngnet_id, \
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nbnet_id, sbnet_id)
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session.add(binding)
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session.flush()
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return binding
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def remove_services_binding(service_id):
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"""Removes a services binding"""
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LOG.debug("remove_services_binding() called")
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session = db.get_session()
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try:
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binding = session.query(services_models.ServicesBinding).\
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filter_by(service_id=service_id).\
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all()
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for bind in binding:
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session.delete(bind)
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session.flush()
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return binding
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except exc.NoResultFound:
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pass
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