9c0fc8e981
This patch introduces DB mappings between neutron and NSX router, thus not requiring anymore the Neutron router ID to be equal to the NSX one. This change is needed for enabling asynchronous operations in the NSX plugin. This patch also performs NVP/NSX renaming where appropriate, and fixes delete router logic causing a 500 HTTP error to be returned when a Neutron internal error occurs. Related to blueprint nvp-async-backend-communication Related to blueprint nicira-plugin-renaming Change-Id: Ib0e9ed0f58e7fa3497a93e9cd3baa9cb81ad797b
123 lines
4.7 KiB
Python
123 lines
4.7 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 import Boolean, Column, Enum, ForeignKey, Integer, String
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from sqlalchemy import orm
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from neutron.db import l3_db
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from neutron.db.models_v2 import model_base
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class NvpNetworkBinding(model_base.BASEV2):
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"""Represents a binding of a virtual network with a transport zone.
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This model class associates a Neutron network with a transport zone;
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optionally a vlan ID might be used if the binding type is 'bridge'
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"""
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__tablename__ = 'nvp_network_bindings'
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# TODO(arosen) - it might be worth while refactoring the how this data
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# is stored later so every column does not need to be a primary key.
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network_id = Column(String(36),
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ForeignKey('networks.id', ondelete="CASCADE"),
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primary_key=True)
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# 'flat', 'vlan', stt' or 'gre'
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binding_type = Column(Enum('flat', 'vlan', 'stt', 'gre', 'l3_ext',
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name='nvp_network_bindings_binding_type'),
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nullable=False, primary_key=True)
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phy_uuid = Column(String(36), primary_key=True, nullable=True)
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vlan_id = Column(Integer, primary_key=True, nullable=True,
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autoincrement=False)
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def __init__(self, network_id, binding_type, phy_uuid, vlan_id):
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self.network_id = network_id
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self.binding_type = binding_type
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self.phy_uuid = phy_uuid
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self.vlan_id = vlan_id
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def __repr__(self):
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return "<NetworkBinding(%s,%s,%s,%s)>" % (self.network_id,
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self.binding_type,
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self.phy_uuid,
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self.vlan_id)
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class NeutronNsxNetworkMapping(model_base.BASEV2):
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"""Maps neutron network identifiers to NSX identifiers.
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Because of chained logical switches more than one mapping might exist
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for a single Neutron network.
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"""
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__tablename__ = 'neutron_nsx_network_mappings'
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neutron_id = Column(String(36),
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ForeignKey('networks.id', ondelete='CASCADE'),
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primary_key=True)
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nsx_id = Column(String(36), primary_key=True)
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class NeutronNsxPortMapping(model_base.BASEV2):
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"""Represents the mapping between neutron and nvp port uuids."""
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__tablename__ = 'neutron_nsx_port_mappings'
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neutron_id = Column(String(36),
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ForeignKey('ports.id', ondelete="CASCADE"),
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primary_key=True)
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nsx_switch_id = Column(String(36))
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nsx_port_id = Column(String(36))
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def __init__(self, neutron_id, nsx_switch_id, nsx_port_id):
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self.neutron_id = neutron_id
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self.nsx_switch_id = nsx_switch_id
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self.nsx_port_id = nsx_port_id
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class NeutronNsxRouterMapping(model_base.BASEV2):
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"""Maps neutron router identifiers to NSX identifiers."""
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__tablename__ = 'neutron_nsx_router_mappings'
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neutron_id = Column(String(36),
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ForeignKey('routers.id', ondelete='CASCADE'),
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primary_key=True)
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nsx_id = Column(String(36))
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class MultiProviderNetworks(model_base.BASEV2):
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"""Networks that were provision through multiprovider extension."""
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__tablename__ = 'nvp_multi_provider_networks'
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network_id = Column(String(36),
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ForeignKey('networks.id', ondelete="CASCADE"),
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primary_key=True)
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def __init__(self, network_id):
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self.network_id = network_id
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class NSXRouterExtAttributes(model_base.BASEV2):
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"""Router attributes managed by Nicira plugin extensions."""
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router_id = Column(String(36),
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ForeignKey('routers.id', ondelete="CASCADE"),
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primary_key=True)
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distributed = Column(Boolean, default=False, nullable=False)
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service_router = Column(Boolean, default=False, nullable=False)
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# Add a relationship to the Router model in order to instruct
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# SQLAlchemy to eagerly load this association
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router = orm.relationship(
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l3_db.Router,
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backref=orm.backref("nsx_attributes", lazy='joined',
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uselist=False, cascade='delete'))
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