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Use taskflow library for building and executing action plans

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

18
watcher/tests/applier/action_plan/test_default_action_handler.py
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@@ -20,7 +20,7 @@ from mock import call
from mock import MagicMock
from watcher.applier.action_plan.default import DefaultActionPlanHandler
from watcher.applier.messaging.events import Events
from watcher.applier.messaging.event_types import EventTypes
from watcher.objects.action_plan import Status
from watcher.objects import ActionPlan
from watcher.tests.db.base import DbTestCase
@@ -33,17 +33,7 @@ class TestDefaultActionPlanHandler(DbTestCase):
self.action_plan = obj_utils.create_test_action_plan(
self.context)
def test_launch_action_plan_wihout_errors(self):
try:
command = DefaultActionPlanHandler(self.context, MagicMock(),
self.action_plan.uuid)
command.execute()
except Exception as e:
self.fail(
"The ActionPlan should be trigged wihtour error" + unicode(e))
def test_launch_action_plan_state_failed(self):
def test_launch_action_plan(self):
command = DefaultActionPlanHandler(self.context, MagicMock(),
self.action_plan.uuid)
command.execute()
@@ -57,10 +47,10 @@ class TestDefaultActionPlanHandler(DbTestCase):
self.action_plan.uuid)
command.execute()
call_on_going = call(Events.LAUNCH_ACTION_PLAN.name, {
call_on_going = call(EventTypes.LAUNCH_ACTION_PLAN.name, {
'action_plan_status': Status.ONGOING,
'action_plan__uuid': self.action_plan.uuid})
call_succeeded = call(Events.LAUNCH_ACTION_PLAN.name, {
call_succeeded = call(EventTypes.LAUNCH_ACTION_PLAN.name, {
'action_plan_status': Status.SUCCEEDED,
'action_plan__uuid': self.action_plan.uuid})

0
watcher/tests/applier/execution/__init__.py → watcher/tests/applier/actions/loading/__init__.py
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32
watcher/tests/applier/actions/loading/test_default_actions_loader.py Normal file
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@@ -0,0 +1,32 @@
# -*- encoding: utf-8 -*-
# Copyright (c) 2016 b<>com
#
# 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 __future__ import unicode_literals
from watcher.applier.actions import base as abase
from watcher.applier.actions.loading import default
from watcher.tests import base
class TestDefaultActionLoader(base.TestCase):
def setUp(self):
super(TestDefaultActionLoader, self).setUp()
self.loader = default.DefaultActionLoader()
def test_endpoints(self):
for endpoint in self.loader.list_available():
loaded = self.loader.load(endpoint)
self.assertIsNotNone(loaded)
self.assertIsInstance(loaded, abase.BaseAction)

56
watcher/tests/applier/execution/test_default_action_plan_executor.py
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@@ -1,56 +0,0 @@
# -*- encoding: utf-8 -*-
# Copyright (c) 2015 b<>com
#
# Authors: Jean-Emile DARTOIS <jean-emile.dartois@b-com.com>
#
# 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.
#
import mock
from watcher.applier.execution import default
from watcher.common import utils
from watcher import objects
from watcher.tests.db import base
class TestDefaultActionPlanExecutor(base.DbTestCase):
def setUp(self):
super(TestDefaultActionPlanExecutor, self).setUp()
self.executor = default.DefaultActionPlanExecutor(mock.MagicMock(),
self.context)
def test_execute(self):
actions = mock.MagicMock()
result = self.executor.execute(actions)
self.assertEqual(result, True)
def test_execute_with_actions(self):
actions = []
action = {
'uuid': utils.generate_uuid(),
'action_plan_id': 0,
'action_type': "nop",
'applies_to': '',
'input_parameters': {'state': 'OFFLINE'},
'state': objects.action.Status.PENDING,
'alarm': None,
'next': None,
}
new_action = objects.Action(self.context, **action)
new_action.create(self.context)
new_action.save()
actions.append(objects.Action.get_by_uuid(self.context,
action['uuid']))
result = self.executor.execute(actions)
self.assertEqual(result, True)

9
watcher/tests/applier/messaging/test_launch_action_plan_endpoint.py → watcher/tests/applier/messaging/test_trigger_action_plan_endpoint.py
View File

@@ -18,8 +18,9 @@
#
from mock import MagicMock
from watcher.applier.messaging.trigger import TriggerActionPlan
import mock
from watcher.applier.messaging import trigger
from watcher.common import utils
from watcher.tests import base
@@ -27,8 +28,8 @@ from watcher.tests import base
class TestTriggerActionPlan(base.TestCase):
def __init__(self, *args, **kwds):
super(TestTriggerActionPlan, self).__init__(*args, **kwds)
self.applier = MagicMock()
self.endpoint = TriggerActionPlan(self.applier)
self.applier = mock.MagicMock()
self.endpoint = trigger.TriggerActionPlan(self.applier)
def setUp(self):
super(TestTriggerActionPlan, self).setUp()

0
watcher/tests/applier/workflow_engine/__init__.py Normal file
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0
watcher/tests/applier/workflow_engine/loading/__init__.py Normal file
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32
watcher/tests/applier/workflow_engine/loading/test_default_engine_loader.py Normal file
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@@ -0,0 +1,32 @@
# -*- encoding: utf-8 -*-
# Copyright (c) 2016 b<>com
#
# 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 __future__ import unicode_literals
from watcher.applier.workflow_engine import base as wbase
from watcher.applier.workflow_engine.loading import default
from watcher.tests import base
class TestDefaultActionLoader(base.TestCase):
def setUp(self):
super(TestDefaultActionLoader, self).setUp()
self.loader = default.DefaultWorkFlowEngineLoader()
def test_endpoints(self):
for endpoint in self.loader.list_available():
loaded = self.loader.load(endpoint)
self.assertIsNotNone(loaded)
self.assertIsInstance(loaded, wbase.BaseWorkFlowEngine)

164
watcher/tests/applier/workflow_engine/test_default_workflow_engine.py Normal file
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@@ -0,0 +1,164 @@
# -*- encoding: utf-8 -*-
# Copyright (c) 2015 b<>com
#
# Authors: Jean-Emile DARTOIS <jean-emile.dartois@b-com.com>
#
# 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.
#
import abc
import mock
import six
from stevedore import driver
from stevedore import extension
from watcher.applier.actions import base as abase
from watcher.applier.workflow_engine import default as tflow
from watcher.common import utils
from watcher import objects
from watcher.tests.db import base
@six.add_metaclass(abc.ABCMeta)
class FakeAction(abase.BaseAction):
def precondition(self):
pass
def revert(self):
pass
def execute(self):
raise Exception()
@classmethod
def namespace(cls):
return "TESTING"
@classmethod
def get_name(cls):
return 'fake_action'
class TestDefaultWorkFlowEngine(base.DbTestCase):
def setUp(self):
super(TestDefaultWorkFlowEngine, self).setUp()
self.engine = tflow.DefaultWorkFlowEngine()
self.engine.context = self.context
self.engine.applier_manager = mock.MagicMock()
def test_execute(self):
actions = mock.MagicMock()
result = self.engine.execute(actions)
self.assertEqual(result, True)
def create_action(self, action_type, applies_to, parameters, next):
action = {
'uuid': utils.generate_uuid(),
'action_plan_id': 0,
'action_type': action_type,
'applies_to': applies_to,
'input_parameters': parameters,
'state': objects.action.Status.PENDING,
'alarm': None,
'next': next,
}
new_action = objects.Action(self.context, **action)
new_action.create(self.context)
new_action.save()
return new_action
def check_action_state(self, action, expected_state):
to_check = objects.Action.get_by_uuid(self.context, action.uuid)
self.assertEqual(to_check.state, expected_state)
def check_actions_state(self, actions, expected_state):
for a in actions:
self.check_action_state(a, expected_state)
def test_execute_with_no_actions(self):
actions = []
result = self.engine.execute(actions)
self.assertEqual(result, True)
def test_execute_with_one_action(self):
actions = [self.create_action("nop", "", {'message': 'test'}, None)]
result = self.engine.execute(actions)
self.assertEqual(result, True)
self.check_actions_state(actions, objects.action.Status.SUCCEEDED)
def test_execute_with_two_actions(self):
actions = []
next = self.create_action("sleep", "", {'duration': '0'}, None)
first = self.create_action("nop", "", {'message': 'test'}, next.id)
actions.append(first)
actions.append(next)
result = self.engine.execute(actions)
self.assertEqual(result, True)
self.check_actions_state(actions, objects.action.Status.SUCCEEDED)
def test_execute_with_three_actions(self):
actions = []
next2 = self.create_action("nop", "vm1", {'message': 'next'}, None)
next = self.create_action("sleep", "vm1", {'duration': '0'}, next2.id)
first = self.create_action("nop", "vm1", {'message': 'hello'}, next.id)
self.check_action_state(first, objects.action.Status.PENDING)
self.check_action_state(next, objects.action.Status.PENDING)
self.check_action_state(next2, objects.action.Status.PENDING)
actions.append(first)
actions.append(next)
actions.append(next2)
result = self.engine.execute(actions)
self.assertEqual(result, True)
self.check_actions_state(actions, objects.action.Status.SUCCEEDED)
def test_execute_with_exception(self):
actions = []
next2 = self.create_action("no_exist",
"vm1", {'message': 'next'}, None)
next = self.create_action("sleep", "vm1",
{'duration': '0'}, next2.id)
first = self.create_action("nop", "vm1",
{'message': 'hello'}, next.id)
self.check_action_state(first, objects.action.Status.PENDING)
self.check_action_state(next, objects.action.Status.PENDING)
self.check_action_state(next2, objects.action.Status.PENDING)
actions.append(first)
actions.append(next)
actions.append(next2)
result = self.engine.execute(actions)
self.assertEqual(result, False)
self.check_action_state(first, objects.action.Status.SUCCEEDED)
self.check_action_state(next, objects.action.Status.SUCCEEDED)
self.check_action_state(next2, objects.action.Status.FAILED)
@mock.patch("watcher.common.loader.default.DriverManager")
def test_execute_with_action_exception(self, m_driver):
m_driver.return_value = driver.DriverManager.make_test_instance(
extension=extension.Extension(name=FakeAction.get_name(),
entry_point="%s:%s" % (
FakeAction.__module__,
FakeAction.__name__),
plugin=FakeAction,
obj=None),
namespace=FakeAction.namespace())
actions = [self.create_action("dontcare", "vm1", {}, None)]
result = self.engine.execute(actions)
self.assertEqual(result, False)
self.check_action_state(actions[0], objects.action.Status.FAILED)