vmware-nsx/vmware_nsx/db/nsx_models.py
Abhishek Raut e324b7a53f Fix the L2gw migration script
Remove the foreign key constraint for the connection_id
column. This removes the dependency from the networking-l2gw
tables enabling devstack to run sucessfully. A follow up patch
will be added to clean up connection mappings.

Change-Id: Ib1de421e6187231c875cad76e1981c787ede89f8
2015-08-20 12:57:08 -07:00

315 lines
12 KiB
Python

# Copyright 2015 VMware, Inc.
#
# 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.
"""
NSX data models.
This module defines data models used by the VMware NSX plugin family.
"""
import sqlalchemy as sa
from sqlalchemy import orm
from sqlalchemy import sql
from neutron.db import model_base
from neutron.db import models_v2
class TzNetworkBinding(model_base.BASEV2):
"""Represents a binding of a virtual network with a transport zone.
This model class associates a Neutron network with a transport zone;
optionally a vlan ID might be used if the binding type is 'bridge'
"""
__tablename__ = 'tz_network_bindings'
# TODO(arosen) - it might be worth while refactoring the how this data
# is stored later so every column does not need to be a primary key.
network_id = sa.Column(sa.String(36),
sa.ForeignKey('networks.id', ondelete="CASCADE"),
primary_key=True)
# 'flat', 'vlan', stt' or 'gre'
binding_type = sa.Column(sa.Enum('flat', 'vlan', 'stt', 'gre', 'l3_ext',
name='tz_network_bindings_binding_type'),
nullable=False, primary_key=True)
phy_uuid = sa.Column(sa.String(36), primary_key=True, default='')
vlan_id = sa.Column(sa.Integer, primary_key=True,
autoincrement=False, default=0)
def __init__(self, network_id, binding_type, phy_uuid, vlan_id):
self.network_id = network_id
self.binding_type = binding_type
self.phy_uuid = phy_uuid
self.vlan_id = vlan_id
def __repr__(self):
return "<NetworkBinding(%s,%s,%s,%s)>" % (self.network_id,
self.binding_type,
self.phy_uuid,
self.vlan_id)
class NeutronNsxNetworkMapping(model_base.BASEV2):
"""Maps neutron network identifiers to NSX identifiers.
Because of chained logical switches more than one mapping might exist
for a single Neutron network.
"""
__tablename__ = 'neutron_nsx_network_mappings'
neutron_id = sa.Column(sa.String(36),
sa.ForeignKey('networks.id', ondelete='CASCADE'),
primary_key=True)
nsx_id = sa.Column(sa.String(36), primary_key=True)
class NeutronNsxSecurityGroupMapping(model_base.BASEV2):
"""Backend mappings for Neutron Security Group identifiers.
This class maps a neutron security group identifier to the corresponding
NSX security profile identifier.
"""
__tablename__ = 'neutron_nsx_security_group_mappings'
neutron_id = sa.Column(sa.String(36),
sa.ForeignKey('securitygroups.id',
ondelete="CASCADE"),
primary_key=True)
nsx_id = sa.Column(sa.String(36), primary_key=True)
class NeutronNsxFirewallSectionMapping(model_base.BASEV2):
"""Backend mappings for Neutron Security-group associated fw sections."""
__tablename__ = 'neutron_nsx_firewall_section_mappings'
neutron_id = sa.Column(sa.String(36),
sa.ForeignKey('securitygroups.id',
ondelete='CASCADE'),
primary_key=True,
nullable=False)
nsx_id = sa.Column(sa.String(36), nullable=False)
class NeutronNsxRuleMapping(model_base.BASEV2):
"""Backend mappings for firewall rules.
This class maps a neutron security group rule with NSX firewall rule.
"""
__tablename__ = 'neutron_nsx_rule_mappings'
neutron_id = sa.Column(sa.String(36),
sa.ForeignKey('securitygrouprules.id',
ondelete="CASCADE"),
primary_key=True,
nullable=False)
nsx_id = sa.Column(sa.String(36), nullable=False)
class NeutronNsxPortMapping(model_base.BASEV2):
"""Represents the mapping between neutron and nsx port uuids."""
__tablename__ = 'neutron_nsx_port_mappings'
neutron_id = sa.Column(sa.String(36),
sa.ForeignKey('ports.id', ondelete="CASCADE"),
primary_key=True)
nsx_switch_id = sa.Column(sa.String(36))
nsx_port_id = sa.Column(sa.String(36), nullable=False)
def __init__(self, neutron_id, nsx_switch_id, nsx_port_id):
self.neutron_id = neutron_id
self.nsx_switch_id = nsx_switch_id
self.nsx_port_id = nsx_port_id
class NeutronNsxRouterMapping(model_base.BASEV2):
"""Maps neutron router identifiers to NSX identifiers."""
__tablename__ = 'neutron_nsx_router_mappings'
neutron_id = sa.Column(sa.String(36),
sa.ForeignKey('routers.id', ondelete='CASCADE'),
primary_key=True)
nsx_id = sa.Column(sa.String(36))
class MultiProviderNetworks(model_base.BASEV2):
"""Networks provisioned through multiprovider extension."""
__tablename__ = 'multi_provider_networks'
network_id = sa.Column(sa.String(36),
sa.ForeignKey('networks.id', ondelete="CASCADE"),
primary_key=True)
def __init__(self, network_id):
self.network_id = network_id
class NetworkConnection(model_base.BASEV2, models_v2.HasTenant):
"""Defines a connection between a network gateway and a network."""
# We use port_id as the primary key as one can connect a gateway
# to a network in multiple ways (and we cannot use the same port form
# more than a single gateway)
network_gateway_id = sa.Column(sa.String(36),
sa.ForeignKey('networkgateways.id',
ondelete='CASCADE'))
network_id = sa.Column(sa.String(36),
sa.ForeignKey('networks.id', ondelete='CASCADE'))
segmentation_type = sa.Column(
sa.Enum('flat', 'vlan',
name='networkconnections_segmentation_type'))
segmentation_id = sa.Column(sa.Integer)
__table_args__ = (sa.UniqueConstraint(network_gateway_id,
segmentation_type,
segmentation_id),
model_base.BASEV2.__table_args__)
# Also, storing port id comes back useful when disconnecting a network
# from a gateway
port_id = sa.Column(sa.String(36),
sa.ForeignKey('ports.id', ondelete='CASCADE'),
primary_key=True)
class NetworkGatewayDeviceReference(model_base.BASEV2):
id = sa.Column(sa.String(36), primary_key=True)
network_gateway_id = sa.Column(sa.String(36),
sa.ForeignKey('networkgateways.id',
ondelete='CASCADE'),
primary_key=True)
interface_name = sa.Column(sa.String(64), primary_key=True)
class NetworkGatewayDevice(model_base.BASEV2, models_v2.HasId,
models_v2.HasTenant):
nsx_id = sa.Column(sa.String(36))
# Optional name for the gateway device
name = sa.Column(sa.String(255))
# Transport connector type. Not using enum as range of
# connector types might vary with backend version
connector_type = sa.Column(sa.String(10))
# Transport connector IP Address
connector_ip = sa.Column(sa.String(64))
# operational status
status = sa.Column(sa.String(16))
class NetworkGateway(model_base.BASEV2, models_v2.HasId,
models_v2.HasTenant):
"""Defines the data model for a network gateway."""
name = sa.Column(sa.String(255))
# Tenant id is nullable for this resource
tenant_id = sa.Column(sa.String(36))
default = sa.Column(sa.Boolean())
devices = orm.relationship(NetworkGatewayDeviceReference,
backref='networkgateways',
cascade='all,delete')
network_connections = orm.relationship(NetworkConnection, lazy='joined')
class MacLearningState(model_base.BASEV2):
port_id = sa.Column(sa.String(36),
sa.ForeignKey('ports.id', ondelete="CASCADE"),
primary_key=True)
mac_learning_enabled = sa.Column(sa.Boolean(), nullable=False)
# Add a relationship to the Port model using the backref attribute.
# This will instruct SQLAlchemy to eagerly load this association.
port = orm.relationship(
models_v2.Port,
backref=orm.backref("mac_learning_state", lazy='joined',
uselist=False, cascade='delete'))
class LsnPort(models_v2.model_base.BASEV2):
__tablename__ = 'lsn_port'
lsn_port_id = sa.Column(sa.String(36), primary_key=True)
lsn_id = sa.Column(sa.String(36),
sa.ForeignKey('lsn.lsn_id', ondelete="CASCADE"),
nullable=False)
sub_id = sa.Column(sa.String(36), nullable=False, unique=True)
mac_addr = sa.Column(sa.String(32), nullable=False, unique=True)
def __init__(self, lsn_port_id, subnet_id, mac_address, lsn_id):
self.lsn_port_id = lsn_port_id
self.lsn_id = lsn_id
self.sub_id = subnet_id
self.mac_addr = mac_address
class Lsn(models_v2.model_base.BASEV2):
__tablename__ = 'lsn'
lsn_id = sa.Column(sa.String(36), primary_key=True)
net_id = sa.Column(sa.String(36), nullable=False)
def __init__(self, net_id, lsn_id):
self.net_id = net_id
self.lsn_id = lsn_id
class QoSQueue(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
name = sa.Column(sa.String(255))
default = sa.Column(sa.Boolean, default=False, server_default=sql.false())
min = sa.Column(sa.Integer, nullable=False)
max = sa.Column(sa.Integer, nullable=True)
qos_marking = sa.Column(sa.Enum('untrusted', 'trusted',
name='qosqueues_qos_marking'))
dscp = sa.Column(sa.Integer)
class PortQueueMapping(model_base.BASEV2):
port_id = sa.Column(sa.String(36),
sa.ForeignKey("ports.id", ondelete="CASCADE"),
primary_key=True)
queue_id = sa.Column(sa.String(36), sa.ForeignKey("qosqueues.id"),
primary_key=True)
# Add a relationship to the Port model adding a backref which will
# allow SQLAlchemy for eagerly load the queue binding
port = orm.relationship(
models_v2.Port,
backref=orm.backref("qos_queue", uselist=False,
cascade='delete', lazy='joined'))
class NetworkQueueMapping(model_base.BASEV2):
network_id = sa.Column(sa.String(36),
sa.ForeignKey("networks.id", ondelete="CASCADE"),
primary_key=True)
queue_id = sa.Column(sa.String(36), sa.ForeignKey("qosqueues.id",
ondelete="CASCADE"))
# Add a relationship to the Network model adding a backref which will
# allow SQLAlcremy for eagerly load the queue binding
network = orm.relationship(
models_v2.Network,
backref=orm.backref("qos_queue", uselist=False,
cascade='delete', lazy='joined'))
class NsxL2GWConnectionMapping(model_base.BASEV2):
"""Define a mapping between L2 gateway connection and bridge endpoint."""
__tablename__ = 'nsx_l2gw_connection_mappings'
connection_id = sa.Column(sa.String(36),
nullable=False,
primary_key=True)
port_id = sa.Column(sa.String(36),
sa.ForeignKey("ports.id", ondelete="CASCADE"),
nullable=False)
bridge_endpoint_id = sa.Column(sa.String(36), nullable=False)