40 lines
1.6 KiB
Python
40 lines
1.6 KiB
Python
# Copyright 2024 Red Hat, Inc.
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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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from neutron_lib.callbacks import events
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from neutron_lib.callbacks import priority_group
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from neutron_lib.callbacks import registry
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from neutron_lib.callbacks import resources
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from neutron.common.ovn import utils
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from neutron.db import l3_attrs_db
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@registry.has_registry_receivers
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class OVN_L3_HA_db_mixin(l3_attrs_db.ExtraAttributesMixin):
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"""Mixin class to add high availability capability to OVN routers."""
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@registry.receives(resources.ROUTER, [events.PRECOMMIT_CREATE],
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priority_group.PRIORITY_ROUTER_EXTENDED_ATTRIBUTE)
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def _precommit_router_create(self, resource, event, trigger, payload):
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"""Event handler to set ha flag creation."""
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# NOTE(ralonsoh): OVN L3 router HA flag is mandatory and True always,
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# enforced by ``OvnDriver.ha_support`` set to ``MANDATORY``. This flag
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# cannot be updated.
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router = payload.latest_state
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if not utils.is_ovn_provider_router(router):
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return
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router_db = payload.metadata['router_db']
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self.set_extra_attr_value(router_db, 'ha', True)
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