Source code for octavia.controller.worker.v1.flows.listener_flows

# Copyright 2015 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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from taskflow.patterns import linear_flow

from octavia.common import constants
from octavia.controller.worker.v1.tasks import amphora_driver_tasks
from octavia.controller.worker.v1.tasks import database_tasks
from octavia.controller.worker.v1.tasks import lifecycle_tasks
from octavia.controller.worker.v1.tasks import network_tasks


[docs]class ListenerFlows(object):
[docs] def get_create_listener_flow(self): """Create a flow to create a listener :returns: The flow for creating a listener """ create_listener_flow = linear_flow.Flow(constants.CREATE_LISTENER_FLOW) create_listener_flow.add(lifecycle_tasks.ListenersToErrorOnRevertTask( requires=[constants.LOADBALANCER, constants.LISTENERS])) create_listener_flow.add(amphora_driver_tasks.ListenersUpdate( requires=constants.LOADBALANCER)) create_listener_flow.add(network_tasks.UpdateVIP( requires=constants.LOADBALANCER)) create_listener_flow.add(database_tasks. MarkLBAndListenersActiveInDB( requires=[constants.LOADBALANCER, constants.LISTENERS])) return create_listener_flow
[docs] def get_create_all_listeners_flow(self): """Create a flow to create all listeners :returns: The flow for creating all listeners """ create_all_listeners_flow = linear_flow.Flow( constants.CREATE_LISTENERS_FLOW) create_all_listeners_flow.add( database_tasks.GetListenersFromLoadbalancer( requires=constants.LOADBALANCER, provides=constants.LISTENERS)) create_all_listeners_flow.add(database_tasks.ReloadLoadBalancer( requires=constants.LOADBALANCER_ID, provides=constants.LOADBALANCER)) create_all_listeners_flow.add(amphora_driver_tasks.ListenersUpdate( requires=constants.LOADBALANCER)) create_all_listeners_flow.add(network_tasks.UpdateVIP( requires=constants.LOADBALANCER)) return create_all_listeners_flow
[docs] def get_delete_listener_flow(self): """Create a flow to delete a listener :returns: The flow for deleting a listener """ delete_listener_flow = linear_flow.Flow(constants.DELETE_LISTENER_FLOW) delete_listener_flow.add(lifecycle_tasks.ListenerToErrorOnRevertTask( requires=constants.LISTENER)) delete_listener_flow.add(amphora_driver_tasks.ListenerDelete( requires=constants.LISTENER)) delete_listener_flow.add(network_tasks.UpdateVIPForDelete( requires=constants.LOADBALANCER)) delete_listener_flow.add(database_tasks.DeleteListenerInDB( requires=constants.LISTENER)) delete_listener_flow.add(database_tasks.DecrementListenerQuota( requires=constants.LISTENER)) delete_listener_flow.add(database_tasks.MarkLBActiveInDB( requires=constants.LOADBALANCER)) return delete_listener_flow
[docs] def get_delete_listener_internal_flow(self, listener_name): """Create a flow to delete a listener and l7policies internally (will skip deletion on the amp and marking LB active) :returns: The flow for deleting a listener """ delete_listener_flow = linear_flow.Flow(constants.DELETE_LISTENER_FLOW) # Should cascade delete all L7 policies delete_listener_flow.add(network_tasks.UpdateVIPForDelete( name='delete_update_vip_' + listener_name, requires=constants.LOADBALANCER)) delete_listener_flow.add(database_tasks.DeleteListenerInDB( name='delete_listener_in_db_' + listener_name, requires=constants.LISTENER, rebind={constants.LISTENER: listener_name})) delete_listener_flow.add(database_tasks.DecrementListenerQuota( name='decrement_listener_quota_' + listener_name, requires=constants.LISTENER, rebind={constants.LISTENER: listener_name})) return delete_listener_flow
[docs] def get_update_listener_flow(self): """Create a flow to update a listener :returns: The flow for updating a listener """ update_listener_flow = linear_flow.Flow(constants.UPDATE_LISTENER_FLOW) update_listener_flow.add(lifecycle_tasks.ListenersToErrorOnRevertTask( requires=[constants.LOADBALANCER, constants.LISTENERS])) update_listener_flow.add(amphora_driver_tasks.ListenersUpdate( requires=constants.LOADBALANCER)) update_listener_flow.add(network_tasks.UpdateVIP( requires=constants.LOADBALANCER)) update_listener_flow.add(database_tasks.UpdateListenerInDB( requires=[constants.LISTENER, constants.UPDATE_DICT])) update_listener_flow.add(database_tasks. MarkLBAndListenersActiveInDB( requires=[constants.LOADBALANCER, constants.LISTENERS])) return update_listener_flow