l3_db: refactor L3_NAT_DB_mixin
This patch refactors L3_NAT_DB_mixin to split out db operation and
rpc notification.
l3 plugin for routervm will implement the method for REST resource
operation as something like
def op_resource():
additional operation
with session
additional db operation
db operation of super class => super().db_op_resoruce
additional db operation
additional operation
l3 rpc notification
However, The current L3_NAT_DB_mixin intermixes db operations with l3 rpc.
So it is difficult to reuse the db operation code without l3 rpc.
This patch splits db operation from l3 rpc notification so that
db operation logic can be reused easily. Thus the l3 plugin for routervm
will be simplified with this patch.
Related to blueprint cisco-routing-service-vm
Related to blueprint l3-plugin-brocade-vyatta-vrouter
Change-Id: I88f6574f921596426e1a31c9ff2251aa6f4674b8
This commit is contained in:
Isaku Yamahata
parent
6bd6debebe
commit
748f0d53a1
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@ -51,11 +51,11 @@ class RouterRoute(model_base.BASEV2, models_v2.Route):
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cascade='delete'))
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class ExtraRoute_db_mixin(l3_db.L3_NAT_db_mixin):
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class ExtraRoute_dbonly_mixin(l3_db.L3_NAT_dbonly_mixin):
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"""Mixin class to support extra route configuration on router."""
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def _extend_router_dict_extraroute(self, router_res, router_db):
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router_res['routes'] = (ExtraRoute_db_mixin.
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router_res['routes'] = (ExtraRoute_dbonly_mixin.
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_make_extra_route_list(
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router_db['route_list']
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))
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@ -71,7 +71,7 @@ class ExtraRoute_db_mixin(l3_db.L3_NAT_db_mixin):
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if 'routes' in r:
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self._update_extra_routes(context, router_db, r['routes'])
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routes = self._get_extra_routes_by_router_id(context, id)
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router_updated = super(ExtraRoute_db_mixin, self).update_router(
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router_updated = super(ExtraRoute_dbonly_mixin, self).update_router(
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context, id, router)
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router_updated['routes'] = routes
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@ -159,7 +159,7 @@ class ExtraRoute_db_mixin(l3_db.L3_NAT_db_mixin):
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def get_router(self, context, id, fields=None):
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with context.session.begin(subtransactions=True):
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router = super(ExtraRoute_db_mixin, self).get_router(
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router = super(ExtraRoute_dbonly_mixin, self).get_router(
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context, id, fields)
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return router
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@ -167,14 +167,15 @@ class ExtraRoute_db_mixin(l3_db.L3_NAT_db_mixin):
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sorts=None, limit=None, marker=None,
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page_reverse=False):
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with context.session.begin(subtransactions=True):
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routers = super(ExtraRoute_db_mixin, self).get_routers(
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routers = super(ExtraRoute_dbonly_mixin, self).get_routers(
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context, filters, fields, sorts=sorts, limit=limit,
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marker=marker, page_reverse=page_reverse)
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return routers
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def _confirm_router_interface_not_in_use(self, context, router_id,
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subnet_id):
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super(ExtraRoute_db_mixin, self)._confirm_router_interface_not_in_use(
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super(ExtraRoute_dbonly_mixin,
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self)._confirm_router_interface_not_in_use(
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context, router_id, subnet_id)
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subnet_db = self._core_plugin._get_subnet(context, subnet_id)
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subnet_cidr = netaddr.IPNetwork(subnet_db['cidr'])
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@ -183,3 +184,8 @@ class ExtraRoute_db_mixin(l3_db.L3_NAT_db_mixin):
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if netaddr.all_matching_cidrs(route['nexthop'], [subnet_cidr]):
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raise extraroute.RouterInterfaceInUseByRoute(
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router_id=router_id, subnet_id=subnet_id)
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class ExtraRoute_db_mixin(ExtraRoute_dbonly_mixin, l3_db.L3_NAT_db_mixin):
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"""Mixin class to support extra route configuration on router with rpc."""
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pass
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@ -78,7 +78,7 @@ class FloatingIP(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
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status = sa.Column(sa.String(16))
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class L3_NAT_db_mixin(l3.RouterPluginBase):
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class L3_NAT_dbonly_mixin(l3.RouterPluginBase):
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"""Mixin class to add L3/NAT router methods to db_base_plugin_v2."""
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router_device_owners = (
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@ -87,16 +87,6 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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DEVICE_OWNER_FLOATINGIP
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)
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@property
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def l3_rpc_notifier(self):
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if not hasattr(self, '_l3_rpc_notifier'):
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self._l3_rpc_notifier = l3_rpc_agent_api.L3AgentNotifyAPI()
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return self._l3_rpc_notifier
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@l3_rpc_notifier.setter
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def l3_rpc_notifier(self, value):
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self._l3_rpc_notifier = value
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@property
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def _core_plugin(self):
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return manager.NeutronManager.get_plugin()
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@ -169,17 +159,13 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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if gw_info != attributes.ATTR_NOT_SPECIFIED:
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candidates = self._check_router_needs_rescheduling(
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context, id, gw_info)
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payload = {'gw_exists': True}
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else:
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candidates = None
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payload = {'gw_exists': False}
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router_db = self._update_router_db(context, id, r, gw_info)
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if candidates:
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l3_plugin = manager.NeutronManager.get_service_plugins().get(
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constants.L3_ROUTER_NAT)
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l3_plugin.reschedule_router(context, id, candidates)
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self.l3_rpc_notifier.routers_updated(context, [router_db['id']],
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None, payload)
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return self._make_router_dict(router_db)
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def _check_router_needs_rescheduling(self, context, router_id, gw_info):
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@ -357,8 +343,6 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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self._core_plugin._delete_port(context.elevated(),
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ports[0]['id'])
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self.l3_rpc_notifier.router_deleted(context, id)
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def get_router(self, context, id, fields=None):
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router = self._get_router(context, id)
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return self._make_router_dict(router, fields)
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@ -469,23 +453,15 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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'device_owner': owner,
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'name': ''}})
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def notify_router_interface_action(
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self, context, router_id, tenant_id, port_id, subnet_id, action):
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l3_method = '%s_router_interface' % action
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self.l3_rpc_notifier.routers_updated(context, [router_id],
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l3_method, {'subnet_id': subnet_id})
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mapping = {'add': 'create', 'remove': 'delete'}
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info = {
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@staticmethod
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def _make_router_interface_info(
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router_id, tenant_id, port_id, subnet_id):
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return {
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'id': router_id,
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'tenant_id': tenant_id,
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'port_id': port_id,
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'subnet_id': subnet_id
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}
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notifier = n_rpc.get_notifier('network')
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router_event = 'router.interface.%s' % mapping[action]
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notifier.info(context, router_event, {'router_interface': info})
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return info
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def add_router_interface(self, context, router_id, interface_info):
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add_by_port, add_by_sub = self._validate_interface_info(interface_info)
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@ -498,9 +474,9 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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port = self._add_interface_by_subnet(
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context, router_id, interface_info['subnet_id'], device_owner)
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return self.notify_router_interface_action(
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context, router_id, port['tenant_id'], port['id'],
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port['fixed_ips'][0]['subnet_id'], 'add')
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return self._make_router_interface_info(
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router_id, port['tenant_id'], port['id'],
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port['fixed_ips'][0]['subnet_id'])
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def _confirm_router_interface_not_in_use(self, context, router_id,
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subnet_id):
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@ -568,9 +544,8 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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port, subnet = self._remove_interface_by_subnet(
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context, router_id, subnet_id, device_owner)
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return self.notify_router_interface_action(
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context, router_id, port['tenant_id'], port['id'],
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subnet['id'], 'remove')
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return self._make_router_interface_info(router_id, port['tenant_id'],
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port['id'], subnet['id'])
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def _get_floatingip(self, context, id):
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try:
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@ -739,9 +714,8 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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'router_id': router_id,
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'last_known_router_id': previous_router_id})
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def create_floatingip(
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self, context, floatingip,
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initial_status=l3_constants.FLOATINGIP_STATUS_ACTIVE):
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def create_floatingip(self, context, floatingip,
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initial_status=l3_constants.FLOATINGIP_STATUS_ACTIVE):
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fip = floatingip['floatingip']
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tenant_id = self._get_tenant_id_for_create(context, fip)
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fip_id = uuidutils.generate_uuid()
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@ -785,34 +759,30 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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floatingip_db, external_port)
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context.session.add(floatingip_db)
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router_id = floatingip_db['router_id']
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if router_id:
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self.l3_rpc_notifier.routers_updated(
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context, [router_id],
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'create_floatingip', {})
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return self._make_floatingip_dict(floatingip_db)
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def update_floatingip(self, context, id, floatingip):
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def _update_floatingip(self, context, id, floatingip):
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fip = floatingip['floatingip']
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with context.session.begin(subtransactions=True):
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floatingip_db = self._get_floatingip(context, id)
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old_floatingip = self._make_floatingip_dict(floatingip_db)
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fip['tenant_id'] = floatingip_db['tenant_id']
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fip['id'] = id
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fip_port_id = floatingip_db['floating_port_id']
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before_router_id = floatingip_db['router_id']
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self._update_fip_assoc(context, fip, floatingip_db,
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self._core_plugin.get_port(
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context.elevated(), fip_port_id))
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router_ids = []
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if before_router_id:
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router_ids.append(before_router_id)
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router_id = floatingip_db['router_id']
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if router_id and router_id != before_router_id:
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router_ids.append(router_id)
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if router_ids:
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self.l3_rpc_notifier.routers_updated(
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context, router_ids, 'update_floatingip', {})
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return self._make_floatingip_dict(floatingip_db)
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return old_floatingip, self._make_floatingip_dict(floatingip_db)
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def _floatingips_to_router_ids(self, floatingips):
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return list(set([floatingip['router_id']
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for floatingip in floatingips
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if floatingip['router_id']]))
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def update_floatingip(self, context, id, floatingip):
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_old_floatingip, floatingip = self._update_floatingip(
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context, id, floatingip)
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return floatingip
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def update_floatingip_status(self, context, floatingip_id, status):
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"""Update operational status for floating IP in neutron DB."""
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@ -820,7 +790,7 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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FloatingIP.id == floatingip_id)
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fip_query.update({'status': status}, synchronize_session=False)
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def delete_floatingip(self, context, id):
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def _delete_floatingip(self, context, id):
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floatingip = self._get_floatingip(context, id)
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router_id = floatingip['router_id']
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with context.session.begin(subtransactions=True):
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@ -828,10 +798,10 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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self._core_plugin.delete_port(context.elevated(),
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floatingip['floating_port_id'],
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l3_port_check=False)
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if router_id:
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self.l3_rpc_notifier.routers_updated(
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context, [router_id],
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'delete_floatingip', {})
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return router_id
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def delete_floatingip(self, context, id):
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self._delete_floatingip(context, id)
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def get_floatingip(self, context, id, fields=None):
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floatingip = self._get_floatingip(context, id)
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@ -890,7 +860,7 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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{'port_id': port_db['id'],
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'port_owner': port_db['device_owner']})
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def disassociate_floatingips(self, context, port_id, do_notify=True):
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def disassociate_floatingips(self, context, port_id):
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"""Disassociate all floating IPs linked to specific port.
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@param port_id: ID of the port to disassociate floating IPs.
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@ -908,20 +878,8 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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floating_ip.update({'fixed_port_id': None,
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'fixed_ip_address': None,
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'router_id': None})
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if do_notify:
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self.notify_routers_updated(context, router_ids)
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# since caller assumes that we handled notifications on its
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# behalf, return nothing
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return
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return router_ids
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def notify_routers_updated(self, context, router_ids):
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if router_ids:
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self.l3_rpc_notifier.routers_updated(
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context, list(router_ids),
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'disassociate_floatingips', {})
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def _build_routers_list(self, context, routers, gw_ports):
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for router in routers:
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gw_port_id = router['gw_port_id']
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@ -1069,3 +1027,122 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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self._process_floating_ips(context, routers_dict, floating_ips)
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self._process_interfaces(routers_dict, interfaces)
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return routers_dict.values()
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class L3RpcNotifierMixin(object):
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"""Mixin class to add rpc notifier attribute to db_base_plugin_v2."""
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@property
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def l3_rpc_notifier(self):
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if not hasattr(self, '_l3_rpc_notifier'):
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self._l3_rpc_notifier = l3_rpc_agent_api.L3AgentNotifyAPI()
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return self._l3_rpc_notifier
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@l3_rpc_notifier.setter
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def l3_rpc_notifier(self, value):
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self._l3_rpc_notifier = value
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def notify_router_updated(self, context, router_id,
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operation=None, data=None):
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if router_id:
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self.l3_rpc_notifier.routers_updated(
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context, [router_id], operation, data)
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def notify_routers_updated(self, context, router_ids,
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operation=None, data=None):
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if router_ids:
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self.l3_rpc_notifier.routers_updated(
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context, router_ids, operation, data)
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def notify_router_deleted(self, context, router_id):
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self.l3_rpc_notifier.router_deleted(context, router_id)
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class L3_NAT_db_mixin(L3_NAT_dbonly_mixin, L3RpcNotifierMixin):
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"""Mixin class to add rpc notifier methods to db_base_plugin_v2."""
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def update_router(self, context, id, router):
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r = router['router']
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payload = {'gw_exists':
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r.get(EXTERNAL_GW_INFO, attributes.ATTR_NOT_SPECIFIED) !=
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attributes.ATTR_NOT_SPECIFIED}
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router_dict = super(L3_NAT_db_mixin, self).update_router(context,
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id, router)
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self.notify_router_updated(context, router_dict['id'], None, payload)
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return router_dict
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def delete_router(self, context, id):
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super(L3_NAT_db_mixin, self).delete_router(context, id)
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self.notify_router_deleted(context, id)
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def notify_router_interface_action(
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self, context, router_interface_info, action):
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l3_method = '%s_router_interface' % action
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super(L3_NAT_db_mixin, self).notify_routers_updated(
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context, [router_interface_info['id']], l3_method,
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{'subnet_id': router_interface_info['subnet_id']})
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mapping = {'add': 'create', 'remove': 'delete'}
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notifier = n_rpc.get_notifier('network')
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router_event = 'router.interface.%s' % mapping[action]
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notifier.info(context, router_event,
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{'router_interface': router_interface_info})
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def add_router_interface(self, context, router_id, interface_info):
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router_interface_info = super(
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L3_NAT_db_mixin, self).add_router_interface(
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context, router_id, interface_info)
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self.notify_router_interface_action(
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context, router_interface_info, 'add')
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return router_interface_info
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def remove_router_interface(self, context, router_id, interface_info):
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router_interface_info = super(
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L3_NAT_db_mixin, self).remove_router_interface(
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context, router_id, interface_info)
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self.notify_router_interface_action(
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context, router_interface_info, 'remove')
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return router_interface_info
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def create_floatingip(self, context, floatingip,
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initial_status=l3_constants.FLOATINGIP_STATUS_ACTIVE):
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floatingip_dict = super(L3_NAT_db_mixin, self).create_floatingip(
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context, floatingip, initial_status)
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router_id = floatingip_dict['router_id']
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self.notify_router_updated(context, router_id, 'create_floatingip', {})
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return floatingip_dict
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def update_floatingip(self, context, id, floatingip):
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old_floatingip, floatingip = self._update_floatingip(
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context, id, floatingip)
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router_ids = self._floatingips_to_router_ids(
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[old_floatingip, floatingip])
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super(L3_NAT_db_mixin, self).notify_routers_updated(
|
||||
context, router_ids, 'update_floatingip', {})
|
||||
return floatingip
|
||||
|
||||
def delete_floatingip(self, context, id):
|
||||
router_id = self._delete_floatingip(context, id)
|
||||
self.notify_router_updated(context, router_id, 'delete_floatingip', {})
|
||||
|
||||
def disassociate_floatingips(self, context, port_id, do_notify=True):
|
||||
"""Disassociate all floating IPs linked to specific port.
|
||||
|
||||
@param port_id: ID of the port to disassociate floating IPs.
|
||||
@param do_notify: whether we should notify routers right away.
|
||||
@return: set of router-ids that require notification updates
|
||||
if do_notify is False, otherwise None.
|
||||
"""
|
||||
router_ids = super(L3_NAT_db_mixin, self).disassociate_floatingips(
|
||||
context, port_id)
|
||||
if do_notify:
|
||||
self.notify_routers_updated(context, router_ids)
|
||||
# since caller assumes that we handled notifications on its
|
||||
# behalf, return nothing
|
||||
return
|
||||
|
||||
return router_ids
|
||||
|
||||
def notify_routers_updated(self, context, router_ids):
|
||||
super(L3_NAT_db_mixin, self).notify_routers_updated(
|
||||
context, list(router_ids), 'disassociate_floatingips', {})
|
||||
|
|
|
|||
|
|
@ -180,9 +180,12 @@ class L3_NAT_with_dvr_db_mixin(l3_db.L3_NAT_db_mixin,
|
|||
context.elevated(), router_id, port['network_id'],
|
||||
port['fixed_ips'][0]['subnet_id'])
|
||||
|
||||
return self.notify_router_interface_action(
|
||||
context, router_id, port['tenant_id'], port['id'],
|
||||
port['fixed_ips'][0]['subnet_id'], 'add')
|
||||
router_interface_info = self._make_router_interface_info(
|
||||
router_id, port['tenant_id'], port['id'],
|
||||
port['fixed_ips'][0]['subnet_id'])
|
||||
self.notify_router_interface_action(
|
||||
context, router_interface_info, 'add')
|
||||
return router_interface_info
|
||||
|
||||
def remove_router_interface(self, context, router_id, interface_info):
|
||||
if not interface_info:
|
||||
|
|
@ -205,9 +208,12 @@ class L3_NAT_with_dvr_db_mixin(l3_db.L3_NAT_db_mixin,
|
|||
self.delete_csnat_router_interface_ports(
|
||||
context.elevated(), router, subnet_id=subnet_id)
|
||||
|
||||
return self.notify_router_interface_action(
|
||||
context, router_id, port['tenant_id'], port['id'],
|
||||
subnet['id'], 'remove')
|
||||
router_interface_info = self._make_router_interface_info(
|
||||
router_id, port['tenant_id'], port['id'],
|
||||
port['fixed_ips'][0]['subnet_id'])
|
||||
self.notify_router_interface_action(
|
||||
context, router_interface_info, 'remove')
|
||||
return router_interface_info
|
||||
|
||||
def get_snat_sync_interfaces(self, context, router_ids):
|
||||
"""Query router interfaces that relate to list of router_ids."""
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@ setattr(l3_db.Router, 'enable_snat',
|
|||
nullable=False))
|
||||
|
||||
|
||||
class L3_NAT_db_mixin(l3_db.L3_NAT_db_mixin):
|
||||
class L3_NAT_dbonly_mixin(l3_db.L3_NAT_dbonly_mixin):
|
||||
"""Mixin class to add configurable gateway modes."""
|
||||
|
||||
# Register dict extend functions for ports and networks
|
||||
|
|
@ -56,7 +56,7 @@ class L3_NAT_db_mixin(l3_db.L3_NAT_db_mixin):
|
|||
router.enable_snat = enable_snat
|
||||
|
||||
# Calls superclass, pass router db object for avoiding re-loading
|
||||
super(L3_NAT_db_mixin, self)._update_router_gw_info(
|
||||
super(L3_NAT_dbonly_mixin, self)._update_router_gw_info(
|
||||
context, router_id, info, router=router)
|
||||
# Returning the router might come back useful if this
|
||||
# method is overridden in child classes
|
||||
|
|
@ -70,3 +70,7 @@ class L3_NAT_db_mixin(l3_db.L3_NAT_db_mixin):
|
|||
# Add enable_snat key
|
||||
rtr['enable_snat'] = rtr[EXTERNAL_GW_INFO]['enable_snat']
|
||||
return routers
|
||||
|
||||
|
||||
class L3_NAT_db_mixin(L3_NAT_dbonly_mixin, l3_db.L3_NAT_db_mixin):
|
||||
pass
|
||||
|
|
|
|||
Loading…
Reference in New Issue