b75a28c178
This patch removes the Neutron capability of creating database tables from sqlalchemy models for all those model classes for which a table is not found in the database schema. Migrations should be the official and only solution for creating and managing the Neutron db schema. This patch also adapts unit tests in order to ensure test schemas are still correctly created. DocImpact Update deployment documentation accordingly. Closes-Bug: #1207402 Change-Id: Ie4ee5507888ecad5f6dc32ce7a029c43014687a2 Co-Authored-By: Henry Gessau <gessau@cisco.com>
132 lines
5.8 KiB
Python
132 lines
5.8 KiB
Python
# Copyright (c) 2014 Cisco Systems 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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#
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# @author: Arvind Somya (asomya@cisco.com), Cisco Systems Inc.
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from neutron.db import db_base_plugin_v2
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from neutron.db import extraroute_db
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from neutron.db import l3_gwmode_db
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from neutron.openstack.common import excutils
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from neutron.openstack.common import log as logging
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from neutron.plugins.common import constants
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from neutron.plugins.ml2.drivers.cisco.apic import apic_manager
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LOG = logging.getLogger(__name__)
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class ApicL3ServicePlugin(db_base_plugin_v2.NeutronDbPluginV2,
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extraroute_db.ExtraRoute_db_mixin,
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l3_gwmode_db.L3_NAT_db_mixin):
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"""Implementation of the APIC L3 Router Service Plugin.
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This class implements a L3 service plugin that provides
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internal gateway functionality for the Cisco APIC (Application
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Policy Infrastructure Controller).
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"""
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supported_extension_aliases = ["router", "ext-gw-mode", "extraroute"]
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def __init__(self):
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super(ApicL3ServicePlugin, self).__init__()
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self.manager = apic_manager.APICManager()
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@staticmethod
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def get_plugin_type():
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return constants.L3_ROUTER_NAT
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@staticmethod
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def get_plugin_description():
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"""Returns string description of the plugin."""
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return _("L3 Router Service Plugin for basic L3 using the APIC")
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def _add_epg_to_contract(self, tenant_id, epg, contract):
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"""Add an End Point Group(EPG) to a contract as provider/consumer."""
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if self.manager.db.get_provider_contract():
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# Set this network's EPG as a consumer
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self.manager.set_contract_for_epg(tenant_id, epg.epg_id,
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contract.contract_id)
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else:
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# Set this network's EPG as a provider
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self.manager.set_contract_for_epg(tenant_id, epg.epg_id,
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contract.contract_id,
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provider=True)
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def add_router_interface(self, context, router_id, interface_info):
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"""Attach a subnet to a router."""
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tenant_id = context.tenant_id
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subnet_id = interface_info['subnet_id']
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LOG.debug("Attaching subnet %(subnet_id)s to "
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"router %(router_id)s" % {'subnet_id': subnet_id,
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'router_id': router_id})
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# Get network for this subnet
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subnet = self.get_subnet(context, subnet_id)
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network_id = subnet['network_id']
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net_name = self.get_network(context, network_id)['name']
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# Setup tenant filters and contracts
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contract = self.manager.create_tenant_contract(tenant_id)
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# Check for a provider EPG
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epg = self.manager.ensure_epg_created_for_network(tenant_id,
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network_id,
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net_name)
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self._add_epg_to_contract(tenant_id, epg, contract)
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# Create DB port
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try:
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return super(ApicL3ServicePlugin, self).add_router_interface(
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context, router_id, interface_info)
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except Exception:
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LOG.error(_("Error attaching subnet %(subnet_id)s to "
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"router %(router_id)s") % {'subnet_id': subnet_id,
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'router_id': router_id})
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with excutils.save_and_reraise_exception():
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self.manager.delete_contract_for_epg(tenant_id, epg.epg_id,
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contract.contract_id,
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provider=epg.provider)
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def remove_router_interface(self, context, router_id, interface_info):
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"""Detach a subnet from a router."""
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tenant_id = context.tenant_id
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subnet_id = interface_info['subnet_id']
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LOG.debug("Detaching subnet %(subnet_id)s from "
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"router %(router_id)s" % {'subnet_id': subnet_id,
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'router_id': router_id})
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# Get network for this subnet
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subnet = self.get_subnet(context, subnet_id)
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network_id = subnet['network_id']
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network = self.get_network(context, network_id)
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contract = self.manager.create_tenant_contract(tenant_id)
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epg = self.manager.ensure_epg_created_for_network(tenant_id,
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network_id,
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network['name'])
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# Delete contract for this epg
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self.manager.delete_contract_for_epg(tenant_id, epg.epg_id,
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contract.contract_id,
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provider=epg.provider)
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try:
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return super(ApicL3ServicePlugin, self).remove_router_interface(
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context, router_id, interface_info)
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except Exception:
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LOG.error(_("Error detaching subnet %(subnet_id)s from "
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"router %(router_id)s") % {'subnet_id': subnet_id,
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'router_id': router_id})
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with excutils.save_and_reraise_exception():
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self._add_epg_to_contract(tenant_id, epg, contract)
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