b68824163d
This commit adds intelligent multiple nexus physical switch support for the Cisco plugin. The plugin also has been modified to scan for the host when an instance is created and selectively trunk VLAN's for the port for that host only. It also deletes VLANs from nexus switches when no longer required. Implements: blueprint cisco-plugin-enhancements Change-Id: I6275eb1815310d0d5a8123ca2edbc0a0937718e9
139 lines
4.7 KiB
Python
139 lines
4.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012, 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: Rohit Agarwalla, Cisco Systems, Inc.
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# @author: Arvind Somya, Cisco Systems, Inc. (asomya@cisco.com)
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#
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from sqlalchemy.orm import exc
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import quantum.db.api as db
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from quantum.openstack.common import log as logging
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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 nexus_models_v2
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LOG = logging.getLogger(__name__)
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def get_all_nexusport_bindings():
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"""Lists all the nexusport bindings"""
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LOG.debug("get_all_nexusport_bindings() called")
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session = db.get_session()
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try:
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bindings = session.query(nexus_models_v2.NexusPortBinding).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_nexusport_binding(port_id, vlan_id, switch_ip, instance_id):
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"""Lists a nexusport binding"""
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LOG.debug("get_nexusport_binding() called")
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session = db.get_session()
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try:
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binding = (session.query(nexus_models_v2.NexusPortBinding).
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filter_by(vlan_id=vlan_id).filter_by(switch_ip=switch_ip).
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filter_by(port_id=port_id).
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filter_by(instance_id=instance_id).all())
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return binding
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except exc.NoResultFound:
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raise c_exc.NexusPortBindingNotFound(vlan_id=vlan_id)
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def get_nexusvlan_binding(vlan_id, switch_ip):
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"""Lists a vlan and switch binding"""
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LOG.debug("get_nexusvlan_binding() called")
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session = db.get_session()
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try:
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binding = (session.query(nexus_models_v2.NexusPortBinding).
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filter_by(vlan_id=vlan_id).filter_by(switch_ip=switch_ip).
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all())
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return binding
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except exc.NoResultFound:
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raise c_exc.NexusPortBindingNotFound(vlan_id=vlan_id)
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def add_nexusport_binding(port_id, vlan_id, switch_ip, instance_id):
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"""Adds a nexusport binding"""
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LOG.debug("add_nexusport_binding() called")
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session = db.get_session()
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binding = nexus_models_v2.NexusPortBinding(
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port_id, vlan_id, switch_ip, instance_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_nexusport_binding(port_id, vlan_id, switch_ip, instance_id):
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"""Removes a nexusport binding"""
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LOG.debug("remove_nexusport_binding() called")
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session = db.get_session()
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try:
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binding = (session.query(nexus_models_v2.NexusPortBinding).
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filter_by(vlan_id=vlan_id).filter_by(switch_ip=switch_ip).
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filter_by(port_id=port_id).
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filter_by(instance_id=instance_id).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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def update_nexusport_binding(port_id, new_vlan_id):
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"""Updates nexusport binding"""
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LOG.debug("update_nexusport_binding called")
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session = db.get_session()
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try:
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binding = (session.query(nexus_models_v2.NexusPortBinding).
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filter_by(port_id=port_id).one())
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if new_vlan_id:
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binding["vlan_id"] = new_vlan_id
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session.merge(binding)
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session.flush()
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return binding
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except exc.NoResultFound:
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raise c_exc.NexusPortBindingNotFound()
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def get_nexusvm_binding(vlan_id, instance_id):
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"""Lists nexusvm bindings"""
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LOG.debug("get_nexusvm_binding() called")
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session = db.get_session()
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try:
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binding = (session.query(nexus_models_v2.NexusPortBinding).
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filter_by(instance_id=instance_id).
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filter_by(vlan_id=vlan_id).first())
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return binding
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except exc.NoResultFound:
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raise c_exc.NexusPortBindingNotFound(vlan_id=vlan_id)
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def get_port_vlan_switch_binding(port_id, vlan_id, switch_ip):
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"""Lists nexusvm bindings"""
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LOG.debug("get_port_vlan_switch_binding() called")
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session = db.get_session()
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try:
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binding = (session.query(nexus_models_v2.NexusPortBinding).
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filter_by(port_id=port_id).filter_by(switch_ip=switch_ip).
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filter_by(vlan_id=vlan_id).all())
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return binding
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except exc.NoResultFound:
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raise c_exc.NexusPortBindingNotFound(vlan_id=vlan_id)
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