98 lines
4.4 KiB
Python
98 lines
4.4 KiB
Python
# Copyright 2014 Cisco Systems, Inc. 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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import sqlalchemy as sa
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from sqlalchemy import orm
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from neutron.db import agents_db
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from neutron.db import l3_db
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from neutron.db import model_base
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from neutron.db import models_v2
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class HostingDevice(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
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"""Represents an appliance hosting Neutron router(s).
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When the hosting device is a Nova VM 'id' is uuid of that VM.
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"""
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__tablename__ = 'cisco_hosting_devices'
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# complementary id to enable identification of associated Neutron resources
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complementary_id = sa.Column(sa.String(36))
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# manufacturer id of the device, e.g., its serial number
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device_id = sa.Column(sa.String(255))
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admin_state_up = sa.Column(sa.Boolean, nullable=False, default=True)
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# 'management_port_id' is the Neutron Port used for management interface
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management_port_id = sa.Column(sa.String(36),
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sa.ForeignKey('ports.id',
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ondelete="SET NULL"))
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management_port = orm.relationship(models_v2.Port)
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# 'protocol_port' is udp/tcp port of hosting device. May be empty.
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protocol_port = sa.Column(sa.Integer)
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cfg_agent_id = sa.Column(sa.String(36),
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sa.ForeignKey('agents.id'),
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nullable=True)
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cfg_agent = orm.relationship(agents_db.Agent)
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# Service VMs take time to boot so we store creation time
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# so we can give preference to older ones when scheduling
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created_at = sa.Column(sa.DateTime, nullable=False)
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status = sa.Column(sa.String(16))
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class HostedHostingPortBinding(model_base.BASEV2):
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"""Represents binding of logical resource's port to its hosting port."""
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__tablename__ = 'cisco_port_mappings'
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logical_resource_id = sa.Column(sa.String(36), primary_key=True)
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logical_port_id = sa.Column(sa.String(36),
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sa.ForeignKey('ports.id',
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ondelete="CASCADE"),
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primary_key=True)
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logical_port = orm.relationship(
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models_v2.Port,
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primaryjoin='Port.id==HostedHostingPortBinding.logical_port_id',
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backref=orm.backref('hosting_info', cascade='all', uselist=False))
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# type of hosted port, e.g., router_interface, ..._gateway, ..._floatingip
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port_type = sa.Column(sa.String(32))
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# type of network the router port belongs to
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network_type = sa.Column(sa.String(32))
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hosting_port_id = sa.Column(sa.String(36),
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sa.ForeignKey('ports.id',
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ondelete='CASCADE'))
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hosting_port = orm.relationship(
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models_v2.Port,
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primaryjoin='Port.id==HostedHostingPortBinding.hosting_port_id')
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# VLAN tag for trunk ports
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segmentation_id = sa.Column(sa.Integer, autoincrement=False)
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class RouterHostingDeviceBinding(model_base.BASEV2):
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"""Represents binding between Neutron routers and their hosting devices."""
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__tablename__ = 'cisco_router_mappings'
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router_id = sa.Column(sa.String(36),
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sa.ForeignKey('routers.id', ondelete='CASCADE'),
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primary_key=True)
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router = orm.relationship(
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l3_db.Router,
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backref=orm.backref('hosting_info', cascade='all', uselist=False))
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# If 'auto_schedule' is True then router is automatically scheduled
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# if it lacks a hosting device or its hosting device fails.
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auto_schedule = sa.Column(sa.Boolean, default=True, nullable=False)
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# id of hosting device hosting this router, None/NULL if unscheduled.
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hosting_device_id = sa.Column(sa.String(36),
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sa.ForeignKey('cisco_hosting_devices.id',
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ondelete='SET NULL'))
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hosting_device = orm.relationship(HostingDevice)
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