def _update_router_db(self, context, router_id, data, gw_info):
ha = data.pop('ha', None)
if ha and data.get('distributed'):
raise l3_ha.DistributedHARouterNotSupported()
with context.session.begin(subtransactions=True):
router_db = super(L3_HA_NAT_db_mixin,
self)._update_router_db(context, router_id, data,
gw_info)
ha_not_changed = ha is None or ha == router_db.extra_attributes.ha
if ha_not_changed:
return router_db
ha_network = self.get_ha_network(context, router_db.tenant_id)
router_db.extra_attributes.ha = ha
if not ha:
self._delete_vr_id_allocation(
context, ha_network, router_db.extra_attributes.ha_vr_id)
router_db.extra_attributes.ha_vr_id = None
if ha:
if not ha_network:
ha_network = self._create_ha_network(context,
router_db.tenant_id)
self._set_vr_id(context, router_db, ha_network)
self._create_ha_interfaces(context, router_db, ha_network)
self._notify_ha_interfaces_updated(context, router_db.id)
else:
self._delete_ha_interfaces(context, router_db.id)
self._notify_ha_interfaces_updated(context, router_db.id)
return router_db
def create_router(self, context, router):
is_ha = self._is_ha(router['router'])
if is_ha and l3_dvr_db.is_distributed_router(router['router']):
raise l3_ha.DistributedHARouterNotSupported()
router['router']['ha'] = is_ha
router_dict = super(L3_HA_NAT_db_mixin,
self).create_router(context, router)
if is_ha:
try:
router_db = self._get_router(context, router_dict['id'])
ha_network = self.get_ha_network(context, router_db.tenant_id)
if not ha_network:
ha_network = self._create_ha_network(
context, router_db.tenant_id)
self._set_vr_id(context, router_db, ha_network)
self._create_ha_interfaces(context, router_db, ha_network)
self._notify_ha_interfaces_updated(context, router_db.id)
except Exception:
with excutils.save_and_reraise_exception():
self.delete_router(context, router_dict['id'])
router_dict['ha_vr_id'] = router_db.extra_attributes.ha_vr_id
return router_dict
def _schedule_router(self, plugin, context, router_id, candidates=None):
sync_router = plugin.get_router(context, router_id)
router_distributed = sync_router.get('distributed', False)
if router_distributed or sync_router.get('ha', False):
raise l3_ha.DistributedHARouterNotSupported()
if candidates is None:
candidates = self.get_all_l3_agents(plugin, context)
LOG.debug('all_cap:%s' % candidates)
if not candidates:
return
for chosen_agent in candidates:
query = context.session.query(
l3_agentschedulers_db.RouterL3AgentBinding)
query = query.filter(
l3_agentschedulers_db.RouterL3AgentBinding.router_id ==
router_id,
l3_agentschedulers_db.RouterL3AgentBinding.l3_agent_id ==
chosen_agent['id'])
try:
query.one()
LOG.debug('find old router_agent_binding %s-%s '
% (router_id, chosen_agent['id']))
except sa_exc.NoResultFound:
self.bind_router(context, router_id, chosen_agent)
return chosen_agent
def _create_router_db(self, context, router, tenant_id):
router['ha'] = self._is_ha(router)
if router['ha'] and l3_dvr_db.is_distributed_router(router):
raise l3_ha.DistributedHARouterNotSupported()
with context.session.begin(subtransactions=True):
router_db = super(L3_HA_NAT_db_mixin,
self)._create_router_db(context, router,
tenant_id)
if router['ha']:
try:
ha_network = self.get_ha_network(context, router_db.tenant_id)
if not ha_network:
ha_network = self._create_ha_network(
context, router_db.tenant_id)
self._set_vr_id(context, router_db, ha_network)
self._create_ha_interfaces(context, router_db, ha_network)
self._notify_ha_interfaces_updated(context, router_db.id)
except Exception:
with excutils.save_and_reraise_exception():
self.delete_router(context, router_db.id)
return router_db
def _update_router_db(self, context, router_id, data, gw_info):
router_db = self._get_router(context, router_id)
original_distributed_state = router_db.extra_attributes.distributed
original_ha_state = router_db.extra_attributes.ha
requested_ha_state = data.pop('ha', None)
requested_distributed_state = data.get('distributed', None)
if ((original_ha_state and requested_distributed_state)
or (requested_ha_state and original_distributed_state)
or (requested_ha_state and requested_distributed_state)):
raise l3_ha.DistributedHARouterNotSupported()
with context.session.begin(subtransactions=True):
router_db = super(L3_HA_NAT_db_mixin,
self)._update_router_db(context, router_id, data,
gw_info)
ha_not_changed = (requested_ha_state is None
or requested_ha_state == original_ha_state)
if ha_not_changed:
return router_db
if router_db.admin_state_up:
msg = _('Cannot change HA attribute of active routers. Please '
'set router admin_state_up to False prior to upgrade.')
raise n_exc.BadRequest(resource='router', msg=msg)
ha_network = self.get_ha_network(context, router_db.tenant_id)
router_db.extra_attributes.ha = requested_ha_state
if not requested_ha_state:
self._delete_vr_id_allocation(
context, ha_network, router_db.extra_attributes.ha_vr_id)
router_db.extra_attributes.ha_vr_id = None
# The HA attribute has changed. First unbind the router from agents
# to force a proper re-scheduling to agents.
# TODO(jschwarz): This will have to be more selective to get HA + DVR
# working (Only unbind from dvr_snat nodes).
self._unbind_ha_router(context, router_id)
if requested_ha_state:
if not ha_network:
ha_network = self._create_ha_network(context,
router_db.tenant_id)
self._set_vr_id(context, router_db, ha_network)
self._create_ha_interfaces(context, router_db, ha_network)
self._notify_ha_interfaces_updated(context, router_db.id)
else:
self._delete_ha_interfaces(context, router_db.id)
self._notify_ha_interfaces_updated(context, router_db.id)
return router_db
