def test_is_gateway_chassis(self):
chassis = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={
'external_ids': {'ovn-cms-options': 'enable-chassis-as-gw'}})
non_gw_chassis_0 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={
'external_ids': {'ovn-cms-options': ''}})
non_gw_chassis_1 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={})
non_gw_chassis_2 = fakes.FakeOvsdbRow.create_one_ovsdb_row(attrs={
'external_ids': {}})
self.assertTrue(utils.is_gateway_chassis(chassis))
self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_0))
self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_1))
self.assertFalse(utils.is_gateway_chassis(non_gw_chassis_2))
def handle_ha_chassis_group_changes(self, event, row, old):
"""Handle HA Chassis Group changes.
This method handles the inclusion and removal of Chassis to/from
the default HA Chassis Group.
"""
if not self.driver._ovn_client.is_external_ports_supported():
return
# NOTE(lucasgomes): If the external_ids column wasn't updated
# (meaning, Chassis "gateway" status didn't change) just returns
if not hasattr(old, 'external_ids') and event == self.ROW_UPDATE:
return
is_gw_chassis = utils.is_gateway_chassis(row)
# If the Chassis being created is not a gateway, ignore it
if not is_gw_chassis and event == self.ROW_CREATE:
return
if event == self.ROW_UPDATE:
is_old_gw = utils.is_gateway_chassis(old)
if is_gw_chassis and is_old_gw:
return
elif not is_gw_chassis and is_old_gw:
# Chassis is not a gateway anymore, treat it as deletion
event = self.ROW_DELETE
elif is_gw_chassis and not is_old_gw:
# Chassis is now a gateway, treat it as creation
event = self.ROW_CREATE
if event == self.ROW_CREATE:
default_group = self.driver._nb_ovn.ha_chassis_group_get(
ovn_const.HA_CHASSIS_GROUP_DEFAULT_NAME).execute(
check_error=True)
# Find what's the lowest priority number current in the group
# and add the new chassis as the new lowest
min_priority = min(
[ch.priority for ch in default_group.ha_chassis],
default=ovn_const.HA_CHASSIS_GROUP_HIGHEST_PRIORITY)
self.driver._nb_ovn.ha_chassis_group_add_chassis(
ovn_const.HA_CHASSIS_GROUP_DEFAULT_NAME, row.name,
priority=min_priority - 1).execute(check_error=True)
elif event == self.ROW_DELETE:
self.driver._nb_ovn.ha_chassis_group_del_chassis(
ovn_const.HA_CHASSIS_GROUP_DEFAULT_NAME,
row.name, if_exists=True).execute(check_error=True)
def match_fn(self, event, row, old):
if event != self.ROW_UPDATE:
return True
# NOTE(lucasgomes): If the external_ids column wasn't updated
# (meaning, Chassis "gateway" status didn't change) just returns
if not hasattr(old, 'external_ids') and event == self.ROW_UPDATE:
return False
if (old.external_ids.get('ovn-bridge-mappings') !=
row.external_ids.get('ovn-bridge-mappings')):
return True
# Check if either the Gateway status or Availability Zones has
# changed in the Chassis
is_gw = utils.is_gateway_chassis(row)
is_gw_old = utils.is_gateway_chassis(old)
azs = utils.get_chassis_availability_zones(row)
old_azs = utils.get_chassis_availability_zones(old)
if is_gw != is_gw_old or azs != old_azs:
return True
return False
def handle_ha_chassis_group_changes(self, event, row, old):
"""Handle HA Chassis Group changes.
This method handles the inclusion and removal of Chassis to/from
the default HA Chassis Group.
"""
if not self.driver._ovn_client.is_external_ports_supported():
return
is_gw_chassis = utils.is_gateway_chassis(row)
# If the Chassis being created is not a gateway, ignore it
if not is_gw_chassis and event == self.ROW_CREATE:
return
azs = utils.get_chassis_availability_zones(row)
if event == self.ROW_UPDATE:
is_old_gw = utils.is_gateway_chassis(old)
if is_gw_chassis and is_old_gw:
old_azs = utils.get_chassis_availability_zones(old)
# If there are no differences in the AZs, return
if azs == old_azs:
return
# Find out the HA Chassis Groups that were affected by
# the update (to add and/or remove the updated Chassis)
ha_ch_add = self._get_ha_chassis_groups_within_azs(
azs - old_azs)
ha_ch_del = self._get_ha_chassis_groups_within_azs(
old_azs - azs)
with self.driver.nb_ovn.transaction(check_error=True) as txn:
for hcg in ha_ch_add:
min_priority = self._get_min_priority_in_hcg(hcg)
txn.add(
self.driver.nb_ovn.ha_chassis_group_add_chassis(
hcg.name, row.name, priority=min_priority))
for hcg in ha_ch_del:
txn.add(
self.driver.nb_ovn.ha_chassis_group_del_chassis(
hcg.name, row.name, if_exists=True))
return
elif not is_gw_chassis and is_old_gw:
# Chassis is not a gateway anymore, treat it as deletion
event = self.ROW_DELETE
elif is_gw_chassis and not is_old_gw:
# Chassis is now a gateway, treat it as creation
event = self.ROW_CREATE
if event == self.ROW_CREATE:
ha_chassis_list = self._get_ha_chassis_groups_within_azs(azs)
with self.driver.nb_ovn.transaction(check_error=True) as txn:
for hcg in ha_chassis_list:
min_priority = self._get_min_priority_in_hcg(hcg)
txn.add(self.driver.nb_ovn.ha_chassis_group_add_chassis(
hcg.name, row.name, priority=min_priority))
elif event == self.ROW_DELETE:
ha_chassis_list = self._get_ha_chassis_groups_within_azs(azs)
with self.driver.nb_ovn.transaction(check_error=True) as txn:
for hcg in ha_chassis_list:
txn.add(self.driver.nb_ovn.ha_chassis_group_del_chassis(
hcg.name, row.name, if_exists=True))
