e447211094
Also, ensure that a rollback is issued in the event of any DB error. Change-Id: I706db09f11fb5f6b369a1bd0cb1016df7d0359b5 Related-bug: #1265472
120 lines
4.3 KiB
Python
120 lines
4.3 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Nicira, Inc.
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# All Rights Reserved.
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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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from sqlalchemy.orm import exc
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import neutron.db.api as db
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from neutron.openstack.common.db import exception as d_exc
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from neutron.openstack.common import log as logging
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from neutron.plugins.nicira.dbexts import nicira_models
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from neutron.plugins.nicira.dbexts import nicira_networkgw_db
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LOG = logging.getLogger(__name__)
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def get_network_bindings(session, network_id):
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session = session or db.get_session()
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return (session.query(nicira_models.NvpNetworkBinding).
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filter_by(network_id=network_id).
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all())
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def get_network_bindings_by_vlanid(session, vlan_id):
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session = session or db.get_session()
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return (session.query(nicira_models.NvpNetworkBinding).
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filter_by(vlan_id=vlan_id).
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all())
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def add_network_binding(session, network_id, binding_type, phy_uuid, vlan_id):
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with session.begin(subtransactions=True):
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binding = nicira_models.NvpNetworkBinding(network_id, binding_type,
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phy_uuid, vlan_id)
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session.add(binding)
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return binding
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def add_neutron_nsx_port_mapping(session, neutron_id,
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nsx_switch_id, nsx_port_id):
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session.begin(subtransactions=True)
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try:
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mapping = nicira_models.NeutronNsxPortMapping(
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neutron_id, nsx_switch_id, nsx_port_id)
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session.add(mapping)
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session.commit()
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except d_exc.DBDuplicateEntry:
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session.rollback()
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# do not complain if the same exact mapping is being added, otherwise
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# re-raise because even though it is possible for the same neutron
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# port to map to different back-end ports over time, this should not
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# occur whilst a mapping already exists
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current = get_nsx_switch_and_port_id(session, neutron_id)
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if current[1] == nsx_port_id:
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LOG.debug(_("Port mapping for %s already available"), neutron_id)
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else:
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raise
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except d_exc.DBError:
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# rollback for any other db error
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session.rollback()
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raise
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return mapping
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def get_nsx_switch_and_port_id(session, neutron_id):
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try:
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mapping = (session.query(nicira_models.NeutronNsxPortMapping).
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filter_by(neutron_id=neutron_id).
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one())
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return mapping['nsx_switch_id'], mapping['nsx_port_id']
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except exc.NoResultFound:
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LOG.debug(_("NSX identifiers for neutron port %s not yet "
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"stored in Neutron DB"), neutron_id)
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return None, None
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def delete_neutron_nsx_port_mapping(session, neutron_id):
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return (session.query(nicira_models.NeutronNsxPortMapping).
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filter_by(neutron_id=neutron_id).delete())
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def unset_default_network_gateways(session):
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with session.begin(subtransactions=True):
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session.query(nicira_networkgw_db.NetworkGateway).update(
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{nicira_networkgw_db.NetworkGateway.default: False})
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def set_default_network_gateway(session, gw_id):
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with session.begin(subtransactions=True):
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gw = (session.query(nicira_networkgw_db.NetworkGateway).
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filter_by(id=gw_id).one())
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gw['default'] = True
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def set_multiprovider_network(session, network_id):
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with session.begin(subtransactions=True):
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multiprovider_network = nicira_models.MultiProviderNetworks(
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network_id)
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session.add(multiprovider_network)
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return multiprovider_network
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def is_multiprovider_network(session, network_id):
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with session.begin(subtransactions=True):
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return bool(
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session.query(nicira_models.MultiProviderNetworks).filter_by(
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network_id=network_id).first())
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