# octavia.controller.worker.v2.flows.health_monitor_flows

# Source code for octavia.controller.worker.v2.flows.health_monitor_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
    #
    # http://www.apache.org/licenses/LICENSE-2.0
    #
    # 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
    # License for the specific language governing permissions and limitations
    # under the License.
    #

    from taskflow.patterns import linear_flow

    from octavia.common import constants
    from octavia.controller.worker.v2.tasks import amphora_driver_tasks
    from octavia.controller.worker.v2.tasks import database_tasks
    from octavia.controller.worker.v2.tasks import lifecycle_tasks

    class HealthMonitorFlows:

        def get_create_health_monitor_flow(self):
            """Create a flow to create a health monitor

            :returns: The flow for creating a health monitor
            """
            create_hm_flow = linear_flow.Flow(constants.CREATE_HEALTH_MONITOR_FLOW)
            create_hm_flow.add(lifecycle_tasks.HealthMonitorToErrorOnRevertTask(
                requires=[constants.HEALTH_MON,
                          constants.LISTENERS,
                          constants.LOADBALANCER]))
            create_hm_flow.add(database_tasks.MarkHealthMonitorPendingCreateInDB(
                requires=constants.HEALTH_MON))
            create_hm_flow.add(amphora_driver_tasks.ListenersUpdate(
                requires=constants.LOADBALANCER_ID))
            create_hm_flow.add(database_tasks.MarkHealthMonitorActiveInDB(
                requires=constants.HEALTH_MON))
            create_hm_flow.add(database_tasks.MarkPoolActiveInDB(
                requires=constants.POOL_ID))
            create_hm_flow.add(database_tasks.MarkLBAndListenersActiveInDB(
                requires=(constants.LOADBALANCER_ID, constants.LISTENERS)))

            return create_hm_flow

        def get_delete_health_monitor_flow(self):
            """Create a flow to delete a health monitor

            :returns: The flow for deleting a health monitor
            """
            delete_hm_flow = linear_flow.Flow(constants.DELETE_HEALTH_MONITOR_FLOW)
            delete_hm_flow.add(lifecycle_tasks.HealthMonitorToErrorOnRevertTask(
                requires=[constants.HEALTH_MON,
                          constants.LISTENERS,
                          constants.LOADBALANCER]))
            delete_hm_flow.add(database_tasks.MarkHealthMonitorPendingDeleteInDB(
                requires=constants.HEALTH_MON))
            delete_hm_flow.add(amphora_driver_tasks.ListenersUpdate(
                requires=constants.LOADBALANCER_ID))
            delete_hm_flow.add(database_tasks.DeleteHealthMonitorInDB(
                requires=constants.HEALTH_MON))
            delete_hm_flow.add(database_tasks.DecrementHealthMonitorQuota(
                requires=constants.PROJECT_ID))
            delete_hm_flow.add(
                database_tasks.UpdatePoolMembersOperatingStatusInDB(
                    requires=constants.POOL_ID,
                    inject={constants.OPERATING_STATUS: constants.NO_MONITOR}))
            delete_hm_flow.add(database_tasks.MarkPoolActiveInDB(
                requires=constants.POOL_ID))
            delete_hm_flow.add(database_tasks.MarkLBAndListenersActiveInDB(
                requires=(constants.LOADBALANCER_ID, constants.LISTENERS)))

            return delete_hm_flow

        def get_update_health_monitor_flow(self):
            """Create a flow to update a health monitor

            :returns: The flow for updating a health monitor
            """
            update_hm_flow = linear_flow.Flow(constants.UPDATE_HEALTH_MONITOR_FLOW)
            update_hm_flow.add(lifecycle_tasks.HealthMonitorToErrorOnRevertTask(
                requires=[constants.HEALTH_MON,
                          constants.LISTENERS,
                          constants.LOADBALANCER]))
            update_hm_flow.add(database_tasks.MarkHealthMonitorPendingUpdateInDB(
                requires=constants.HEALTH_MON))
            update_hm_flow.add(amphora_driver_tasks.ListenersUpdate(
                requires=constants.LOADBALANCER_ID))
            update_hm_flow.add(database_tasks.UpdateHealthMonInDB(
                requires=[constants.HEALTH_MON, constants.UPDATE_DICT]))
            update_hm_flow.add(database_tasks.MarkHealthMonitorActiveInDB(
                requires=constants.HEALTH_MON))
            update_hm_flow.add(database_tasks.MarkPoolActiveInDB(
                requires=constants.POOL_ID))
            update_hm_flow.add(database_tasks.MarkLBAndListenersActiveInDB(
                requires=(constants.LOADBALANCER_ID, constants.LISTENERS)))

            return update_hm_flow

this page last updated: 2026-04-13 15:26:39

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.

found an error? report a bug