593 lines
24 KiB
Python
593 lines
24 KiB
Python
# Copyright 2018 AWCloud Software Co., Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import mock
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from oslo_config import cfg
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from qinling.db import api as db_api
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from qinling.engine import default_engine
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from qinling import exceptions as exc
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from qinling import status
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from qinling.tests.unit import base
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from qinling.utils import common
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from qinling.utils import constants
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class TestDefaultEngine(base.DbTestCase):
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def setUp(self):
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super(TestDefaultEngine, self).setUp()
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self.orchestrator = mock.Mock()
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self.qinling_endpoint = 'http://127.0.0.1:7070'
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self.default_engine = default_engine.DefaultEngine(
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self.orchestrator, self.qinling_endpoint
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)
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self.rlimit = {
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'cpu': cfg.CONF.resource_limits.default_cpu,
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'memory_size': cfg.CONF.resource_limits.default_memory
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}
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def _create_running_executions(self, function_id, num):
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for _ in range(num):
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self.create_execution(function_id=function_id)
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def test_create_runtime(self):
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runtime = self.create_runtime()
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runtime_id = runtime.id
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# Set status to verify it is changed during creation.
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db_api.update_runtime(runtime_id, {'status': status.CREATING})
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self.default_engine.create_runtime(mock.Mock(), runtime_id)
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self.orchestrator.create_pool.assert_called_once_with(
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runtime_id, runtime.image, trusted=True)
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runtime = db_api.get_runtime(runtime_id)
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self.assertEqual(status.AVAILABLE, runtime.status)
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def test_create_runtime_failed(self):
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runtime = self.create_runtime()
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runtime_id = runtime.id
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# Set status to verify it is changed during creation.
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db_api.update_runtime(runtime_id, {'status': status.CREATING})
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self.orchestrator.create_pool.side_effect = RuntimeError
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self.default_engine.create_runtime(mock.Mock(), runtime_id)
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self.orchestrator.create_pool.assert_called_once_with(
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runtime_id, runtime.image, trusted=True)
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runtime = db_api.get_runtime(runtime_id)
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self.assertEqual(status.ERROR, runtime.status)
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def test_delete_runtime(self):
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runtime = self.create_runtime()
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runtime_id = runtime.id
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self.default_engine.delete_runtime(mock.Mock(), runtime_id)
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self.orchestrator.delete_pool.assert_called_once_with(
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runtime_id)
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self.assertRaisesRegex(
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exc.DBEntityNotFoundError,
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"^Runtime not found \[id=%s\]$" % runtime_id,
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db_api.get_runtime, runtime_id)
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def test_update_runtime(self):
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runtime = self.create_runtime()
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runtime_id = runtime.id
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# Set status to verify it is changed during update.
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db_api.update_runtime(runtime_id, {'status': status.UPGRADING})
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image = self.rand_name('new_image', prefix=self.prefix)
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pre_image = self.rand_name('pre_image', prefix=self.prefix)
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self.orchestrator.update_pool.return_value = True
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self.default_engine.update_runtime(
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mock.Mock(), runtime_id, image, pre_image)
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self.orchestrator.update_pool.assert_called_once_with(
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runtime_id, image=image)
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runtime = db_api.get_runtime(runtime_id)
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self.assertEqual(runtime.status, status.AVAILABLE)
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def test_update_runtime_rollbacked(self):
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runtime = self.create_runtime()
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runtime_id = runtime.id
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# Set status to verify it is changed during update.
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db_api.update_runtime(runtime_id, {'status': status.UPGRADING})
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image = self.rand_name('new_image', prefix=self.prefix)
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pre_image = self.rand_name('pre_image', prefix=self.prefix)
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self.orchestrator.update_pool.return_value = False
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self.default_engine.update_runtime(
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mock.Mock(), runtime_id, image, pre_image)
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self.orchestrator.update_pool.assert_called_once_with(
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runtime_id, image=image)
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runtime = db_api.get_runtime(runtime_id)
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self.assertEqual(runtime.image, pre_image)
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self.assertEqual(runtime.status, status.AVAILABLE)
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@mock.patch('qinling.engine.default_engine.DefaultEngine.scaleup_function')
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@mock.patch('qinling.utils.etcd_util.get_workers')
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@mock.patch('qinling.utils.etcd_util.get_worker_lock')
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def test_function_load_check_no_worker(self, mock_getlock, mock_getworkers,
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mock_scaleup):
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function_id = common.generate_unicode_uuid()
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runtime_id = common.generate_unicode_uuid()
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lock = mock.Mock()
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lock.is_acquired.return_value = True
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mock_getlock.return_value.__enter__.return_value = lock
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mock_getworkers.return_value = []
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self.default_engine.function_load_check(function_id, 0, runtime_id)
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mock_getworkers.assert_called_once_with(function_id, 0)
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mock_scaleup.assert_called_once_with(None, function_id, 0, runtime_id,
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1)
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@mock.patch('qinling.engine.default_engine.DefaultEngine.scaleup_function')
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@mock.patch('qinling.utils.etcd_util.get_workers')
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@mock.patch('qinling.utils.etcd_util.get_worker_lock')
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def test_function_load_check_scaleup(self, mock_getlock, mock_getworkers,
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mock_scaleup):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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lock = mock.Mock()
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lock.is_acquired.return_value = True
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mock_getlock.return_value.__enter__.return_value = lock
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# The default concurrency is 3, we use 4 running executions against
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# 1 worker so that there will be a scaling up.
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mock_getworkers.return_value = ['worker1']
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self._create_running_executions(function_id, 4)
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self.default_engine.function_load_check(function_id, 0, runtime_id)
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mock_getworkers.assert_called_once_with(function_id, 0)
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mock_scaleup.assert_called_once_with(None, function_id, 0, runtime_id,
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1)
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@mock.patch('qinling.engine.default_engine.DefaultEngine.scaleup_function')
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@mock.patch('qinling.utils.etcd_util.get_workers')
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@mock.patch('qinling.utils.etcd_util.get_worker_lock')
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def test_function_load_check_not_scaleup(self, mock_getlock,
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mock_getworkers, mock_scaleup):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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lock = mock.Mock()
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lock.is_acquired.return_value = True
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mock_getlock.return_value.__enter__.return_value = lock
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# The default concurrency is 3, we use 3 running executions against
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# 1 worker so that there won't be a scaling up.
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mock_getworkers.return_value = ['worker1']
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self._create_running_executions(function_id, 3)
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self.default_engine.function_load_check(function_id, 0, runtime_id)
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mock_getworkers.assert_called_once_with(function_id, 0)
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mock_scaleup.assert_not_called()
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@mock.patch('qinling.utils.etcd_util.get_workers')
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@mock.patch('qinling.utils.etcd_util.get_worker_lock')
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def test_function_load_check_lock_wait(self, mock_getlock,
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mock_getworkers):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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lock = mock.Mock()
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mock_getlock.return_value.__enter__.return_value = lock
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# Lock is acquired upon the third try.
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lock.is_acquired.side_effect = [False, False, True]
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mock_getworkers.return_value = ['worker1']
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self._create_running_executions(function_id, 3)
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self.default_engine.function_load_check(function_id, 0, runtime_id)
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self.assertEqual(3, lock.is_acquired.call_count)
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mock_getworkers.assert_called_once_with(function_id, 0)
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@mock.patch('qinling.utils.etcd_util.get_worker_lock')
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def test_function_load_check_failed_to_get_worker_lock(self, mock_getlock):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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function_version = 0
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lock = mock.Mock()
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# Lock is never acquired.
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lock.is_acquired.return_value = False
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mock_getlock.return_value.__enter__.return_value = lock
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self.assertRaisesRegex(
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exc.EtcdLockException,
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"^Etcd: failed to get worker lock for function %s"
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"\(version %s\)\.$" % (function_id, function_version),
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self.default_engine.function_load_check,
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function_id, function_version, runtime_id
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)
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@mock.patch('qinling.utils.etcd_util.get_service_url')
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def test_create_execution_image_type_function(self, mock_svc_url):
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"""Create 2 executions for an image type function."""
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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db_api.update_function(
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function_id,
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{
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'code': {
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'source': constants.IMAGE_FUNCTION,
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'image': self.rand_name('image', prefix=self.prefix)
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}
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}
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)
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function = db_api.get_function(function_id)
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execution_1 = self.create_execution(function_id=function_id)
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execution_1_id = execution_1.id
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execution_2 = self.create_execution(function_id=function_id)
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execution_2_id = execution_2.id
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mock_svc_url.return_value = None
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self.orchestrator.prepare_execution.return_value = (
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mock.Mock(), None)
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self.orchestrator.run_execution.side_effect = [
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(True, 'success result'),
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(False, 'failed result')]
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# Create two executions, with different results
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self.default_engine.create_execution(
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mock.Mock(), execution_1_id, function_id, 0, runtime_id
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)
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self.default_engine.create_execution(
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mock.Mock(), execution_2_id, function_id, 0, runtime_id,
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input='input'
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)
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get_service_url_calls = [
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mock.call(function_id, 0), mock.call(function_id, 0)
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]
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mock_svc_url.assert_has_calls(get_service_url_calls)
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prepare_calls = [
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mock.call(function_id,
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0,
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rlimit=self.rlimit,
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image=function.code['image'],
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identifier=mock.ANY,
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labels=None,
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input=None),
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mock.call(function_id,
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0,
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rlimit=self.rlimit,
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image=function.code['image'],
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identifier=mock.ANY,
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labels=None,
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input='input')
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]
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self.orchestrator.prepare_execution.assert_has_calls(prepare_calls)
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run_calls = [
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mock.call(execution_1_id,
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function_id,
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0,
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rlimit=None,
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input=None,
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identifier=mock.ANY,
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service_url=None,
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entry=function.entry,
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trust_id=function.trust_id),
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mock.call(execution_2_id,
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function_id,
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0,
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rlimit=None,
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input='input',
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identifier=mock.ANY,
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service_url=None,
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entry=function.entry,
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trust_id=function.trust_id)
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]
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self.orchestrator.run_execution.assert_has_calls(run_calls)
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execution_1 = db_api.get_execution(execution_1_id)
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execution_2 = db_api.get_execution(execution_2_id)
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self.assertEqual(execution_1.status, status.SUCCESS)
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self.assertEqual(execution_1.logs, '')
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self.assertEqual(execution_1.result, {'output': 'success result'})
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self.assertEqual(execution_2.status, status.FAILED)
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self.assertEqual(execution_2.logs, '')
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self.assertEqual(execution_2.result, {'output': 'failed result'})
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@mock.patch('qinling.utils.etcd_util.get_service_url')
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def test_create_execution_prepare_execution_exception(
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self,
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etcd_util_get_service_url_mock
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):
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"""test_create_execution_prepare_execution_exception
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Create execution for image type function, prepare_execution method
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raises exception.
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"""
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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db_api.update_function(
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function_id,
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{
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'code': {
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'source': constants.IMAGE_FUNCTION,
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'image': self.rand_name('image', prefix=self.prefix)
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}
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}
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)
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function = db_api.get_function(function_id)
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execution = self.create_execution(function_id=function_id)
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execution_id = execution.id
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prepare_execution = self.orchestrator.prepare_execution
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prepare_execution.side_effect = exc.OrchestratorException(
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'Exception in prepare_execution'
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)
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etcd_util_get_service_url_mock.return_value = None
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self.default_engine.create_execution(
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mock.Mock(), execution_id, function_id, 0, runtime_id)
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execution = db_api.get_execution(execution_id)
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self.assertEqual(execution.status, status.ERROR)
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self.assertEqual(execution.logs, '')
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self.assertEqual(execution.result,
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{'error': 'Function execution failed.'})
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@mock.patch('qinling.utils.etcd_util.get_service_url')
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def test_create_execution_package_type_function(
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self,
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etcd_util_get_service_url_mock
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):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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execution = self.create_execution(function_id=function_id)
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execution_id = execution.id
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self.default_engine.function_load_check = mock.Mock(return_value='')
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etcd_util_get_service_url_mock.return_value = None
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self.orchestrator.prepare_execution.return_value = (
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mock.Mock(), 'svc_url')
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self.orchestrator.run_execution.return_value = (
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True,
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{'success': True, 'logs': 'execution log',
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'output': 'success output'})
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self.default_engine.create_execution(
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mock.Mock(), execution_id, function_id, 0, runtime_id)
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self.default_engine.function_load_check.assert_called_once_with(
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function_id, 0, runtime_id)
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etcd_util_get_service_url_mock.assert_called_once_with(function_id, 0)
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self.orchestrator.prepare_execution.assert_called_once_with(
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function_id, 0, rlimit=self.rlimit, image=None,
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identifier=runtime_id, labels={'runtime_id': runtime_id},
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input=None)
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self.orchestrator.run_execution.assert_called_once_with(
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execution_id, function_id, 0, rlimit=self.rlimit, input=None,
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identifier=runtime_id, service_url='svc_url', entry=function.entry,
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trust_id=function.trust_id)
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execution = db_api.get_execution(execution_id)
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self.assertEqual(execution.status, status.SUCCESS)
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self.assertEqual(execution.logs, 'execution log')
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self.assertEqual(execution.result, {'output': 'success output'})
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def test_create_execution_loadcheck_exception(self):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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execution = self.create_execution(function_id=function_id)
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execution_id = execution.id
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self.default_engine.function_load_check = mock.Mock(
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side_effect=exc.OrchestratorException(
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'Exception in scaleup_function'
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)
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)
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self.default_engine.create_execution(
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mock.Mock(), execution_id, function_id, 0, runtime_id)
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execution = db_api.get_execution(execution_id)
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self.assertEqual(execution.status, status.ERROR)
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self.assertEqual(execution.logs, '')
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self.assertEqual(execution.result,
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{'error': 'Function execution failed.'})
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@mock.patch('qinling.engine.utils.get_request_data')
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@mock.patch('qinling.engine.utils.url_request')
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@mock.patch('qinling.utils.etcd_util.get_service_url')
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def test_create_execution_found_service_url(
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self,
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etcd_util_get_service_url_mock,
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engine_utils_url_request_mock,
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engine_utils_get_request_data_mock
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):
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function = self.create_function()
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function_id = function.id
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runtime_id = function.runtime_id
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execution = self.create_execution(function_id=function_id)
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execution_id = execution.id
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self.default_engine.function_load_check = mock.Mock(return_value='')
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etcd_util_get_service_url_mock.return_value = 'svc_url'
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engine_utils_get_request_data_mock.return_value = 'data'
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engine_utils_url_request_mock.return_value = (
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False,
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{'success': False, 'logs': 'execution log',
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'output': 'failed output'})
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self.default_engine.create_execution(
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mock.Mock(), execution_id, function_id, 0, runtime_id,
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input='input')
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self.default_engine.function_load_check.assert_called_once_with(
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function_id, 0, runtime_id)
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etcd_util_get_service_url_mock.assert_called_once_with(function_id, 0)
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engine_utils_get_request_data_mock.assert_called_once_with(
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mock.ANY, function_id, 0, execution_id, self.rlimit,
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'input', function.entry, function.trust_id,
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self.qinling_endpoint, function.timeout)
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engine_utils_url_request_mock.assert_called_once_with(
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self.default_engine.session, 'svc_url/execute', body='data')
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execution = db_api.get_execution(execution_id)
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self.assertEqual(execution.status, status.FAILED)
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self.assertEqual(execution.logs, 'execution log')
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self.assertEqual(execution.result,
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{'success': False, 'output': 'failed output'})
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def test_delete_function(self):
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function_id = common.generate_unicode_uuid()
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self.default_engine.delete_function(mock.Mock(), function_id)
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self.orchestrator.delete_function.assert_called_once_with(
|
|
function_id, 0
|
|
)
|
|
|
|
@mock.patch('qinling.utils.etcd_util.create_service_url')
|
|
@mock.patch('qinling.utils.etcd_util.create_worker')
|
|
def test_scaleup_function(
|
|
self,
|
|
etcd_util_create_worker_mock,
|
|
etcd_util_create_service_url_mock
|
|
):
|
|
function_id = common.generate_unicode_uuid()
|
|
runtime_id = common.generate_unicode_uuid()
|
|
self.orchestrator.scaleup_function.return_value = (['worker'], 'url')
|
|
|
|
self.default_engine.scaleup_function(
|
|
mock.Mock(), function_id, 0, runtime_id)
|
|
|
|
self.orchestrator.scaleup_function.assert_called_once_with(
|
|
function_id, 0, identifier=runtime_id, count=1)
|
|
etcd_util_create_worker_mock.assert_called_once_with(
|
|
function_id, 'worker', version=0)
|
|
etcd_util_create_service_url_mock.assert_called_once_with(
|
|
function_id, 'url', version=0)
|
|
|
|
@mock.patch('qinling.utils.etcd_util.create_service_url')
|
|
@mock.patch('qinling.utils.etcd_util.create_worker')
|
|
def test_scaleup_function_multiple_workers(
|
|
self,
|
|
etcd_util_create_worker_mock,
|
|
etcd_util_create_service_url_mock
|
|
):
|
|
function_id = common.generate_unicode_uuid()
|
|
runtime_id = common.generate_unicode_uuid()
|
|
self.orchestrator.scaleup_function.return_value = (
|
|
['worker0', 'worker1'], 'url')
|
|
|
|
self.default_engine.scaleup_function(
|
|
mock.Mock(), function_id, 0, runtime_id, count=2
|
|
)
|
|
|
|
self.orchestrator.scaleup_function.assert_called_once_with(
|
|
function_id, 0, identifier=runtime_id, count=2
|
|
)
|
|
# Two new workers are created.
|
|
expected = [mock.call(function_id, 'worker0', version=0),
|
|
mock.call(function_id, 'worker1', version=0)]
|
|
etcd_util_create_worker_mock.assert_has_calls(expected)
|
|
etcd_util_create_service_url_mock.assert_called_once_with(
|
|
function_id, 'url', version=0
|
|
)
|
|
|
|
@mock.patch('qinling.utils.etcd_util.delete_worker')
|
|
@mock.patch('qinling.utils.etcd_util.get_workers')
|
|
def test_scaledown_function(
|
|
self, etcd_util_get_workers_mock, etcd_util_delete_workers_mock
|
|
):
|
|
function_id = common.generate_unicode_uuid()
|
|
etcd_util_get_workers_mock.return_value = [
|
|
'worker_%d' % i for i in range(4)
|
|
]
|
|
|
|
self.default_engine.scaledown_function(mock.Mock(), function_id)
|
|
|
|
etcd_util_get_workers_mock.assert_called_once_with(
|
|
function_id, 0)
|
|
self.orchestrator.delete_worker.assert_called_once_with('worker_0')
|
|
etcd_util_delete_workers_mock.assert_called_once_with(
|
|
function_id, 'worker_0', version=0
|
|
)
|
|
|
|
@mock.patch('qinling.utils.etcd_util.delete_worker')
|
|
@mock.patch('qinling.utils.etcd_util.get_workers')
|
|
def test_scaledown_function_multiple_workers(
|
|
self, etcd_util_get_workers_mock, etcd_util_delete_workers_mock
|
|
):
|
|
function_id = common.generate_unicode_uuid()
|
|
etcd_util_get_workers_mock.return_value = [
|
|
'worker_%d' % i for i in range(4)
|
|
]
|
|
|
|
self.default_engine.scaledown_function(mock.Mock(), function_id,
|
|
count=2)
|
|
|
|
etcd_util_get_workers_mock.assert_called_once_with(function_id, 0)
|
|
# First two workers will be deleted.
|
|
expected = [mock.call('worker_0'), mock.call('worker_1')]
|
|
self.orchestrator.delete_worker.assert_has_calls(expected)
|
|
self.assertEqual(2, self.orchestrator.delete_worker.call_count)
|
|
expected = [
|
|
mock.call(function_id, 'worker_0', version=0),
|
|
mock.call(function_id, 'worker_1', version=0)
|
|
]
|
|
etcd_util_delete_workers_mock.assert_has_calls(expected)
|
|
self.assertEqual(2, etcd_util_delete_workers_mock.call_count)
|
|
|
|
@mock.patch('qinling.utils.etcd_util.delete_worker')
|
|
@mock.patch('qinling.utils.etcd_util.get_workers')
|
|
def test_scaledown_function_leaving_one_worker(
|
|
self, etcd_util_get_workers_mock, etcd_util_delete_workers_mock
|
|
):
|
|
function_id = common.generate_unicode_uuid()
|
|
etcd_util_get_workers_mock.return_value = [
|
|
'worker_%d' % i for i in range(4)
|
|
]
|
|
|
|
self.default_engine.scaledown_function(
|
|
mock.Mock(), function_id, count=5) # count > len(workers)
|
|
|
|
etcd_util_get_workers_mock.assert_called_once_with(function_id, 0)
|
|
# Only the first three workers will be deleted
|
|
expected = [
|
|
mock.call('worker_0'), mock.call('worker_1'), mock.call('worker_2')
|
|
]
|
|
self.orchestrator.delete_worker.assert_has_calls(expected)
|
|
self.assertEqual(3, self.orchestrator.delete_worker.call_count)
|
|
expected = [
|
|
mock.call(function_id, 'worker_0', version=0),
|
|
mock.call(function_id, 'worker_1', version=0),
|
|
mock.call(function_id, 'worker_2', version=0)
|
|
]
|
|
etcd_util_delete_workers_mock.assert_has_calls(expected)
|
|
self.assertEqual(3, etcd_util_delete_workers_mock.call_count)
|
|
|
|
def test_get_runtime_pool(self):
|
|
runtime = self.create_runtime()
|
|
runtime_id = runtime.id
|
|
|
|
self.default_engine.get_runtime_pool(mock.Mock(), runtime_id)
|
|
|
|
self.orchestrator.get_pool.assert_called_once_with(runtime_id)
|