127 lines
5.6 KiB
Python
127 lines
5.6 KiB
Python
# Copyright 2015 Hewlett-Packard Development Company, L.P.
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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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#
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from taskflow.patterns import linear_flow
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from octavia.common import constants
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from octavia.controller.worker.v1.tasks import amphora_driver_tasks
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from octavia.controller.worker.v1.tasks import database_tasks
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from octavia.controller.worker.v1.tasks import lifecycle_tasks
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from octavia.controller.worker.v1.tasks import network_tasks
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class ListenerFlows(object):
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def get_create_listener_flow(self):
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"""Create a flow to create a listener
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:returns: The flow for creating a listener
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"""
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create_listener_flow = linear_flow.Flow(constants.CREATE_LISTENER_FLOW)
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create_listener_flow.add(lifecycle_tasks.ListenersToErrorOnRevertTask(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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create_listener_flow.add(amphora_driver_tasks.ListenersUpdate(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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create_listener_flow.add(network_tasks.UpdateVIP(
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requires=constants.LOADBALANCER))
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create_listener_flow.add(database_tasks.
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MarkLBAndListenersActiveInDB(
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requires=[constants.LOADBALANCER,
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constants.LISTENERS]))
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return create_listener_flow
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def get_create_all_listeners_flow(self):
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"""Create a flow to create all listeners
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:returns: The flow for creating all listeners
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"""
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create_all_listeners_flow = linear_flow.Flow(
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constants.CREATE_LISTENERS_FLOW)
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create_all_listeners_flow.add(
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database_tasks.GetListenersFromLoadbalancer(
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requires=constants.LOADBALANCER,
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provides=constants.LISTENERS))
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create_all_listeners_flow.add(database_tasks.ReloadLoadBalancer(
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requires=constants.LOADBALANCER_ID,
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provides=constants.LOADBALANCER))
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create_all_listeners_flow.add(amphora_driver_tasks.ListenersUpdate(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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create_all_listeners_flow.add(network_tasks.UpdateVIP(
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requires=constants.LOADBALANCER))
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return create_all_listeners_flow
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def get_delete_listener_flow(self):
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"""Create a flow to delete a listener
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:returns: The flow for deleting a listener
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"""
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delete_listener_flow = linear_flow.Flow(constants.DELETE_LISTENER_FLOW)
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delete_listener_flow.add(lifecycle_tasks.ListenerToErrorOnRevertTask(
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requires=constants.LISTENER))
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delete_listener_flow.add(amphora_driver_tasks.ListenerDelete(
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requires=[constants.LOADBALANCER, constants.LISTENER]))
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delete_listener_flow.add(network_tasks.UpdateVIPForDelete(
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requires=constants.LOADBALANCER))
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delete_listener_flow.add(database_tasks.DeleteListenerInDB(
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requires=constants.LISTENER))
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delete_listener_flow.add(database_tasks.DecrementListenerQuota(
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requires=constants.LISTENER))
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delete_listener_flow.add(database_tasks.MarkLBActiveInDB(
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requires=constants.LOADBALANCER))
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return delete_listener_flow
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def get_delete_listener_internal_flow(self, listener_name):
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"""Create a flow to delete a listener and l7policies internally
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(will skip deletion on the amp and marking LB active)
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:returns: The flow for deleting a listener
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"""
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delete_listener_flow = linear_flow.Flow(constants.DELETE_LISTENER_FLOW)
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# Should cascade delete all L7 policies
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delete_listener_flow.add(network_tasks.UpdateVIPForDelete(
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name='delete_update_vip_' + listener_name,
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requires=constants.LOADBALANCER))
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delete_listener_flow.add(database_tasks.DeleteListenerInDB(
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name='delete_listener_in_db_' + listener_name,
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requires=constants.LISTENER,
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rebind={constants.LISTENER: listener_name}))
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delete_listener_flow.add(database_tasks.DecrementListenerQuota(
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name='decrement_listener_quota_' + listener_name,
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requires=constants.LISTENER,
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rebind={constants.LISTENER: listener_name}))
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return delete_listener_flow
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def get_update_listener_flow(self):
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"""Create a flow to update a listener
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:returns: The flow for updating a listener
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"""
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update_listener_flow = linear_flow.Flow(constants.UPDATE_LISTENER_FLOW)
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update_listener_flow.add(lifecycle_tasks.ListenersToErrorOnRevertTask(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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update_listener_flow.add(amphora_driver_tasks.ListenersUpdate(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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update_listener_flow.add(database_tasks.UpdateListenerInDB(
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requires=[constants.LISTENER, constants.UPDATE_DICT]))
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update_listener_flow.add(database_tasks.
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MarkLBAndListenersActiveInDB(
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requires=[constants.LOADBALANCER,
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constants.LISTENERS]))
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return update_listener_flow
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