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Use taskflow library for building and executing action plans

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The aim of this patchset is to integrate taskflow in
the Watcher Applier. Taskflow will help us a lot to make
Action Plan execution easy, consistent, scalable and reliable.

DocImpact

Partially implements: blueprint use-taskflow

Change-Id: I903d6509d74a61ad64e1506b8a7156e6e91abcfb
Closes-Bug: #1535326
Closes-Bug: #1531912
This commit is contained in:
Jean-Emile DARTOIS
2016-01-06 12:44:25 +01:00
parent f675003076
commit 0e7bfe61bd
44 changed files with 1234 additions and 848 deletions
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42
watcher/applier/action_plan/default.py
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@@ -18,51 +18,51 @@
#
from oslo_log import log
from watcher.applier.action_plan.base import BaseActionPlanHandler
from watcher.applier.default import DefaultApplier
from watcher.applier.messaging.events import Events
from watcher.common.messaging.events.event import Event
from watcher.objects.action_plan import ActionPlan
from watcher.objects.action_plan import Status
from watcher.applier.action_plan import base
from watcher.applier import default
from watcher.applier.messaging import event_types
from watcher.common.messaging.events import event
from watcher import objects
LOG = log.getLogger(__name__)
class DefaultActionPlanHandler(BaseActionPlanHandler):
def __init__(self, context, manager_applier, action_plan_uuid):
class DefaultActionPlanHandler(base.BaseActionPlanHandler):
def __init__(self, context, applier_manager, action_plan_uuid):
super(DefaultActionPlanHandler, self).__init__()
self.ctx = context
self.action_plan_uuid = action_plan_uuid
self.manager_applier = manager_applier
self.applier_manager = applier_manager
def notify(self, uuid, event_type, state):
action_plan = ActionPlan.get_by_uuid(self.ctx, uuid)
action_plan = objects.ActionPlan.get_by_uuid(self.ctx, uuid)
action_plan.state = state
action_plan.save()
event = Event()
event.type = event_type
event.data = {}
ev = event.Event()
ev.type = event_type
ev.data = {}
payload = {'action_plan__uuid': uuid,
'action_plan_state': state}
self.manager_applier.topic_status.publish_event(event.type.name,
self.applier_manager.topic_status.publish_event(ev.type.name,
payload)
def execute(self):
try:
# update state
self.notify(self.action_plan_uuid,
Events.LAUNCH_ACTION_PLAN,
Status.ONGOING)
applier = DefaultApplier(self.manager_applier, self.ctx)
event_types.EventTypes.LAUNCH_ACTION_PLAN,
objects.action_plan.Status.ONGOING)
applier = default.DefaultApplier(self.applier_manager, self.ctx)
result = applier.execute(self.action_plan_uuid)
except Exception as e:
LOG.exception(e)
result = False
LOG.error("Launch Action Plan " + unicode(e))
finally:
if result is True:
status = Status.SUCCEEDED
status = objects.action_plan.Status.SUCCEEDED
else:
status = Status.FAILED
status = objects.action_plan.Status.FAILED
# update state
self.notify(self.action_plan_uuid, Events.LAUNCH_ACTION_PLAN,
self.notify(self.action_plan_uuid,
event_types.EventTypes.LAUNCH_ACTION_PLAN,
status)