113 lines
5.1 KiB
Python
113 lines
5.1 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.tasks import amphora_driver_tasks
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from octavia.controller.worker.tasks import database_tasks
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from octavia.controller.worker.tasks import lifecycle_tasks
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from octavia.controller.worker.tasks import model_tasks
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from octavia.controller.worker.tasks import network_tasks
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class MemberFlows(object):
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def get_create_member_flow(self):
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"""Create a flow to create a member
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:returns: The flow for creating a member
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"""
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create_member_flow = linear_flow.Flow(constants.CREATE_MEMBER_FLOW)
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create_member_flow.add(lifecycle_tasks.MemberToErrorOnRevertTask(
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requires=[constants.MEMBER,
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constants.LISTENERS,
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constants.LOADBALANCER]))
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create_member_flow.add(database_tasks.MarkMemberPendingCreateInDB(
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requires=constants.MEMBER))
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create_member_flow.add(network_tasks.CalculateDelta(
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requires=constants.LOADBALANCER,
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provides=constants.DELTAS))
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create_member_flow.add(network_tasks.HandleNetworkDeltas(
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requires=constants.DELTAS, provides=constants.ADDED_PORTS))
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create_member_flow.add(amphora_driver_tasks.AmphoraePostNetworkPlug(
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requires=(constants.LOADBALANCER, constants.ADDED_PORTS)
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))
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create_member_flow.add(amphora_driver_tasks.ListenersUpdate(
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requires=(constants.LOADBALANCER, constants.LISTENERS)))
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create_member_flow.add(database_tasks.MarkMemberActiveInDB(
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requires=constants.MEMBER))
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create_member_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_member_flow
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def get_delete_member_flow(self):
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"""Create a flow to delete a member
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:returns: The flow for deleting a member
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"""
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delete_member_flow = linear_flow.Flow(constants.DELETE_MEMBER_FLOW)
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delete_member_flow.add(lifecycle_tasks.MemberToErrorOnRevertTask(
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requires=[constants.MEMBER,
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constants.LISTENERS,
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constants.LOADBALANCER]))
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delete_member_flow.add(database_tasks.MarkMemberPendingDeleteInDB(
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requires=constants.MEMBER))
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delete_member_flow.add(model_tasks.
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DeleteModelObject(rebind={constants.OBJECT:
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constants.MEMBER}))
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delete_member_flow.add(database_tasks.DeleteMemberInDB(
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requires=constants.MEMBER))
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delete_member_flow.add(amphora_driver_tasks.ListenersUpdate(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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delete_member_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 delete_member_flow
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def get_update_member_flow(self):
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"""Create a flow to update a member
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:returns: The flow for updating a member
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"""
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update_member_flow = linear_flow.Flow(constants.UPDATE_MEMBER_FLOW)
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update_member_flow.add(lifecycle_tasks.MemberToErrorOnRevertTask(
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requires=[constants.MEMBER,
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constants.LISTENERS,
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constants.LOADBALANCER]))
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update_member_flow.add(database_tasks.MarkMemberPendingUpdateInDB(
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requires=constants.MEMBER))
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update_member_flow.add(model_tasks.
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UpdateAttributes(
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rebind={constants.OBJECT: constants.MEMBER},
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requires=[constants.UPDATE_DICT]))
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update_member_flow.add(amphora_driver_tasks.ListenersUpdate(
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requires=[constants.LOADBALANCER, constants.LISTENERS]))
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update_member_flow.add(database_tasks.UpdateMemberInDB(
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requires=[constants.MEMBER, constants.UPDATE_DICT]))
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update_member_flow.add(database_tasks.MarkMemberActiveInDB(
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requires=constants.MEMBER))
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update_member_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_member_flow
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