def _save(self, context, tenant_id, network_id, router_id, subnets):
"""Save auto-allocated topology, or revert in case of DB errors."""
try:
# NOTE(armax): saving the auto allocated topology in a
# separate transaction will keep the Neutron DB and the
# Neutron plugin backend in sync, thus allowing for a
# more bullet proof cleanup.
with context.session.begin(subtransactions=True):
context.session.add(
models.AutoAllocatedTopology(
tenant_id=tenant_id,
network_id=network_id,
router_id=router_id))
except db_exc.DBDuplicateEntry:
LOG.error(_LE("Multiple auto-allocated networks detected for "
"tenant %(tenant)s. Attempting clean up for "
"network %(network)s and router %(router)s"),
{'tenant': tenant_id,
'network': network_id,
'router': router_id})
self._cleanup(
context, network_id=network_id,
router_id=router_id, subnets=subnets)
network_id = self._get_auto_allocated_network(
context, tenant_id)
return network_id
def _save(self, context, tenant_id, network_id, router_id, subnets):
"""Save auto-allocated topology, or revert in case of DB errors."""
try:
# NOTE(armax): saving the auto allocated topology in a
# separate transaction will keep the Neutron DB and the
# Neutron plugin backend in sync, thus allowing for a
# more bullet proof cleanup. Any other error will have
# to bubble up.
with context.session.begin(subtransactions=True):
context.session.add(
models.AutoAllocatedTopology(
tenant_id=tenant_id,
network_id=network_id,
router_id=router_id))
self.core_plugin.update_network(
context, network_id,
{'network': {'admin_state_up': True}})
except db_exc.DBDuplicateEntry:
LOG.debug("Multiple auto-allocated networks detected for "
"tenant %s. Attempting clean up for network %s "
"and router %s.",
tenant_id, network_id, router_id)
self._cleanup(
context, network_id=network_id,
router_id=router_id, subnets=subnets)
network_id = self._get_auto_allocated_network(context, tenant_id)
except Exception as e:
raise exceptions.UnknownProvisioningError(
e, network_id=network_id,
router_id=router_id, subnets=subnets)
return network_id
