# # 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 datetime import json import mock from oslo_utils import timeutils import six from heat.common import exception from heat.common import grouputils from heat.common import template_format from heat.engine.clients.os import nova from heat.engine import resource from heat.engine import rsrc_defn from heat.engine import scheduler from heat.tests.autoscaling import inline_templates from heat.tests import common from heat.tests.openstack.nova import fakes as fakes_nova from heat.tests import utils as_template = inline_templates.as_template class TestAutoScalingGroupValidation(common.HeatTestCase): def validate_scaling_group(self, t, stack, resource_name): # create the launch configuration resource conf = stack['LaunchConfig'] self.assertIsNone(conf.validate()) scheduler.TaskRunner(conf.create)() self.assertEqual((conf.CREATE, conf.COMPLETE), conf.state) # create the group resource rsrc = stack[resource_name] self.assertIsNone(rsrc.validate()) return rsrc def test_toomany_vpc_zone_identifier(self): t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['VPCZoneIdentifier'] = ['xxxx', 'yyyy'] stack = utils.parse_stack(t, params=inline_templates.as_params) self.stub_SnapshotConstraint_validate() self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() self.assertRaises(exception.NotSupported, self.validate_scaling_group, t, stack, 'WebServerGroup') def test_invalid_min_size(self): t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['MinSize'] = '-1' properties['MaxSize'] = '2' stack = utils.parse_stack(t, params=inline_templates.as_params) self.stub_SnapshotConstraint_validate() self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() e = self.assertRaises(exception.StackValidationFailed, self.validate_scaling_group, t, stack, 'WebServerGroup') expected_msg = "The size of AutoScalingGroup can not be less than zero" self.assertEqual(expected_msg, six.text_type(e)) def test_invalid_max_size(self): t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['MinSize'] = '3' properties['MaxSize'] = '1' stack = utils.parse_stack(t, params=inline_templates.as_params) self.stub_SnapshotConstraint_validate() self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() e = self.assertRaises(exception.StackValidationFailed, self.validate_scaling_group, t, stack, 'WebServerGroup') expected_msg = "MinSize can not be greater than MaxSize" self.assertEqual(expected_msg, six.text_type(e)) def test_invalid_desiredcapacity(self): t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['MinSize'] = '1' properties['MaxSize'] = '3' properties['DesiredCapacity'] = '4' stack = utils.parse_stack(t, params=inline_templates.as_params) self.stub_SnapshotConstraint_validate() self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() e = self.assertRaises(exception.StackValidationFailed, self.validate_scaling_group, t, stack, 'WebServerGroup') expected_msg = "DesiredCapacity must be between MinSize and MaxSize" self.assertEqual(expected_msg, six.text_type(e)) def test_invalid_desiredcapacity_zero(self): t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['MinSize'] = '1' properties['MaxSize'] = '3' properties['DesiredCapacity'] = '0' stack = utils.parse_stack(t, params=inline_templates.as_params) self.stub_SnapshotConstraint_validate() self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() e = self.assertRaises(exception.StackValidationFailed, self.validate_scaling_group, t, stack, 'WebServerGroup') expected_msg = "DesiredCapacity must be between MinSize and MaxSize" self.assertEqual(expected_msg, six.text_type(e)) def test_validate_without_InstanceId_and_LaunchConfigurationName(self): t = template_format.parse(as_template) agp = t['Resources']['WebServerGroup']['Properties'] agp.pop('LaunchConfigurationName') agp.pop('LoadBalancerNames') stack = utils.parse_stack(t, params=inline_templates.as_params) rsrc = stack['WebServerGroup'] error_msg = ("Either 'InstanceId' or 'LaunchConfigurationName' " "must be provided.") exc = self.assertRaises(exception.StackValidationFailed, rsrc.validate) self.assertIn(error_msg, six.text_type(exc)) def test_validate_with_InstanceId_and_LaunchConfigurationName(self): t = template_format.parse(as_template) agp = t['Resources']['WebServerGroup']['Properties'] agp['InstanceId'] = '5678' stack = utils.parse_stack(t, params=inline_templates.as_params) rsrc = stack['WebServerGroup'] error_msg = ("Either 'InstanceId' or 'LaunchConfigurationName' " "must be provided.") exc = self.assertRaises(exception.StackValidationFailed, rsrc.validate) self.assertIn(error_msg, six.text_type(exc)) def _stub_nova_server_get(self, not_found=False): mock_server = mock.MagicMock() mock_server.image = {'id': 'dd619705-468a-4f7d-8a06-b84794b3561a'} mock_server.flavor = {'id': '1'} mock_server.key_name = 'test' mock_server.security_groups = [{u'name': u'hth_test'}] if not_found: self.patchobject(nova.NovaClientPlugin, 'get_server', side_effect=exception.EntityNotFound( entity='Server', name='5678')) else: self.patchobject(nova.NovaClientPlugin, 'get_server', return_value=mock_server) def test_scaling_group_create_with_instanceid(self): t = template_format.parse(as_template) agp = t['Resources']['WebServerGroup']['Properties'] agp['InstanceId'] = '5678' agp.pop('LaunchConfigurationName') agp.pop('LoadBalancerNames') stack = utils.parse_stack(t, params=inline_templates.as_params) rsrc = stack['WebServerGroup'] self._stub_nova_server_get() _config, ins_props = rsrc._get_conf_properties() self.assertEqual('dd619705-468a-4f7d-8a06-b84794b3561a', ins_props['ImageId']) self.assertEqual('test', ins_props['KeyName']) self.assertEqual(['hth_test'], ins_props['SecurityGroups']) self.assertEqual('1', ins_props['InstanceType']) def test_scaling_group_create_with_instanceid_not_found(self): t = template_format.parse(as_template) agp = t['Resources']['WebServerGroup']['Properties'] agp.pop('LaunchConfigurationName') agp['InstanceId'] = '5678' stack = utils.parse_stack(t, params=inline_templates.as_params) rsrc = stack['WebServerGroup'] self._stub_nova_server_get(not_found=True) msg = ("Property error: " "Resources.WebServerGroup.Properties.InstanceId: " "Error validating value '5678': The Server (5678) could " "not be found.") exc = self.assertRaises(exception.StackValidationFailed, rsrc.validate) self.assertIn(msg, six.text_type(exc)) class TestScalingGroupTags(common.HeatTestCase): def setUp(self): super(TestScalingGroupTags, self).setUp() t = template_format.parse(as_template) self.stack = utils.parse_stack(t, params=inline_templates.as_params) self.group = self.stack['WebServerGroup'] def test_tags_default(self): expected = [{'Key': 'metering.groupname', 'Value': u'WebServerGroup'}, {'Key': 'metering.AutoScalingGroupName', 'Value': u'WebServerGroup'}] self.assertEqual(expected, self.group._tags()) def test_tags_with_extra(self): self.group.properties.data['Tags'] = [ {'Key': 'fee', 'Value': 'foo'}] expected = [{'Key': 'fee', 'Value': 'foo'}, {'Key': 'metering.groupname', 'Value': u'WebServerGroup'}, {'Key': 'metering.AutoScalingGroupName', 'Value': u'WebServerGroup'}] self.assertEqual(expected, self.group._tags()) def test_tags_with_metering(self): self.group.properties.data['Tags'] = [ {'Key': 'metering.fee', 'Value': 'foo'}] expected = [{'Key': 'metering.fee', 'Value': 'foo'}, {'Key': 'metering.AutoScalingGroupName', 'Value': u'WebServerGroup'}] self.assertEqual(expected, self.group._tags()) class TestInitialGroupSize(common.HeatTestCase): scenarios = [ ('000', dict(mins=0, maxs=0, desired=0, expected=0)), ('040', dict(mins=0, maxs=4, desired=0, expected=0)), ('253', dict(mins=2, maxs=5, desired=3, expected=3)), ('14n', dict(mins=1, maxs=4, desired=None, expected=1)), ] def test_initial_size(self): t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['MinSize'] = self.mins properties['MaxSize'] = self.maxs properties['DesiredCapacity'] = self.desired stack = utils.parse_stack(t, params=inline_templates.as_params) group = stack['WebServerGroup'] with mock.patch.object(group, '_create_template') as mock_cre_temp: group.child_template() mock_cre_temp.assert_called_once_with(self.expected) class TestGroupAdjust(common.HeatTestCase): def setUp(self): super(TestGroupAdjust, self).setUp() t = template_format.parse(as_template) self.stack = utils.parse_stack(t, params=inline_templates.as_params) self.group = self.stack['WebServerGroup'] self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() self.stub_SnapshotConstraint_validate() self.assertIsNone(self.group.validate()) def test_scaling_policy_cooldown_toosoon(self): dont_call = self.patchobject(self.group, 'resize') self.patchobject(self.group, '_check_scaling_allowed', side_effect=resource.NoActionRequired) self.assertRaises(resource.NoActionRequired, self.group.adjust, 1) self.assertEqual([], dont_call.call_args_list) def test_scaling_same_capacity(self): """Don't resize when capacity is the same.""" self.patchobject(grouputils, 'get_size', return_value=3) resize = self.patchobject(self.group, 'resize') finished_scaling = self.patchobject(self.group, '_finished_scaling') notify = self.patch('heat.engine.notification.autoscaling.send') self.assertRaises(resource.NoActionRequired, self.group.adjust, 3, adjustment_type='ExactCapacity') expected_notifies = [] self.assertEqual(expected_notifies, notify.call_args_list) self.assertEqual(0, resize.call_count) self.assertEqual(0, finished_scaling.call_count) def test_scaling_update_in_progress(self): """Don't resize when update in progress""" self.group.state_set('UPDATE', 'IN_PROGRESS') resize = self.patchobject(self.group, 'resize') finished_scaling = self.patchobject(self.group, '_finished_scaling') notify = self.patch('heat.engine.notification.autoscaling.send') self.assertRaises(resource.NoActionRequired, self.group.adjust, 3, adjustment_type='ExactCapacity') expected_notifies = [] self.assertEqual(expected_notifies, notify.call_args_list) self.assertEqual(0, resize.call_count) self.assertEqual(0, finished_scaling.call_count) def test_scale_up_min_adjustment(self): self.patchobject(grouputils, 'get_size', return_value=1) resize = self.patchobject(self.group, 'resize') finished_scaling = self.patchobject(self.group, '_finished_scaling') notify = self.patch('heat.engine.notification.autoscaling.send') self.patchobject(self.group, '_check_scaling_allowed') self.group.adjust(33, adjustment_type='PercentChangeInCapacity', min_adjustment_step=2) expected_notifies = [ mock.call( capacity=1, suffix='start', adjustment_type='PercentChangeInCapacity', groupname=u'WebServerGroup', message=u'Start resizing the group WebServerGroup', adjustment=33, stack=self.group.stack), mock.call( capacity=3, suffix='end', adjustment_type='PercentChangeInCapacity', groupname=u'WebServerGroup', message=u'End resizing the group WebServerGroup', adjustment=33, stack=self.group.stack)] self.assertEqual(expected_notifies, notify.call_args_list) resize.assert_called_once_with(3) finished_scaling.assert_called_once_with( None, 'PercentChangeInCapacity : 33', size_changed=True) def test_scale_down_min_adjustment(self): self.patchobject(grouputils, 'get_size', return_value=5) resize = self.patchobject(self.group, 'resize') finished_scaling = self.patchobject(self.group, '_finished_scaling') notify = self.patch('heat.engine.notification.autoscaling.send') self.patchobject(self.group, '_check_scaling_allowed') self.group.adjust(-33, adjustment_type='PercentChangeInCapacity', min_adjustment_step=2) expected_notifies = [ mock.call( capacity=5, suffix='start', adjustment_type='PercentChangeInCapacity', groupname=u'WebServerGroup', message=u'Start resizing the group WebServerGroup', adjustment=-33, stack=self.group.stack), mock.call( capacity=3, suffix='end', adjustment_type='PercentChangeInCapacity', groupname=u'WebServerGroup', message=u'End resizing the group WebServerGroup', adjustment=-33, stack=self.group.stack)] self.assertEqual(expected_notifies, notify.call_args_list) resize.assert_called_once_with(3) finished_scaling.assert_called_once_with( None, 'PercentChangeInCapacity : -33', size_changed=True) def test_scaling_policy_cooldown_ok(self): self.patchobject(grouputils, 'get_size', return_value=0) resize = self.patchobject(self.group, 'resize') finished_scaling = self.patchobject(self.group, '_finished_scaling') notify = self.patch('heat.engine.notification.autoscaling.send') self.patchobject(self.group, '_check_scaling_allowed') self.group.adjust(1) expected_notifies = [ mock.call( capacity=0, suffix='start', adjustment_type='ChangeInCapacity', groupname=u'WebServerGroup', message=u'Start resizing the group WebServerGroup', adjustment=1, stack=self.group.stack), mock.call( capacity=1, suffix='end', adjustment_type='ChangeInCapacity', groupname=u'WebServerGroup', message=u'End resizing the group WebServerGroup', adjustment=1, stack=self.group.stack)] self.assertEqual(expected_notifies, notify.call_args_list) resize.assert_called_once_with(1) finished_scaling.assert_called_once_with(None, 'ChangeInCapacity : 1', size_changed=True) grouputils.get_size.assert_called_once_with(self.group) def test_scaling_policy_resize_fail(self): self.patchobject(grouputils, 'get_size', return_value=0) self.patchobject(self.group, 'resize', side_effect=ValueError('test error')) notify = self.patch('heat.engine.notification.autoscaling.send') self.patchobject(self.group, '_check_scaling_allowed') self.patchobject(self.group, '_finished_scaling') self.assertRaises(ValueError, self.group.adjust, 1) expected_notifies = [ mock.call( capacity=0, suffix='start', adjustment_type='ChangeInCapacity', groupname=u'WebServerGroup', message=u'Start resizing the group WebServerGroup', adjustment=1, stack=self.group.stack), mock.call( capacity=0, suffix='error', adjustment_type='ChangeInCapacity', groupname=u'WebServerGroup', message=u'test error', adjustment=1, stack=self.group.stack)] self.assertEqual(expected_notifies, notify.call_args_list) grouputils.get_size.assert_called_with(self.group) def test_notification_send_if_resize_failed(self): """If resize failed, the capacity of group might have been changed""" self.patchobject(grouputils, 'get_size', side_effect=[3, 4]) self.patchobject(self.group, 'resize', side_effect=ValueError('test error')) notify = self.patch('heat.engine.notification.autoscaling.send') self.patchobject(self.group, '_check_scaling_allowed') self.patchobject(self.group, '_finished_scaling') self.assertRaises(ValueError, self.group.adjust, 5, adjustment_type='ExactCapacity') expected_notifies = [ mock.call( capacity=3, suffix='start', adjustment_type='ExactCapacity', groupname=u'WebServerGroup', message=u'Start resizing the group WebServerGroup', adjustment=5, stack=self.group.stack), mock.call( capacity=4, suffix='error', adjustment_type='ExactCapacity', groupname=u'WebServerGroup', message=u'test error', adjustment=5, stack=self.group.stack)] self.assertEqual(expected_notifies, notify.call_args_list) self.group.resize.assert_called_once_with(5) grouputils.get_size.assert_has_calls([mock.call(self.group), mock.call(self.group)]) class TestGroupCrud(common.HeatTestCase): def setUp(self): super(TestGroupCrud, self).setUp() t = template_format.parse(as_template) self.stack = utils.parse_stack(t, params=inline_templates.as_params) self.group = self.stack['WebServerGroup'] self.assertIsNone(self.group.validate()) def test_handle_create(self): self.group.create_with_template = mock.Mock(return_value=None) self.group.child_template = mock.Mock(return_value='{}') self.group.handle_create() self.group.child_template.assert_called_once_with() self.group.create_with_template.assert_called_once_with('{}') def test_handle_update_desired_cap(self): self.group._try_rolling_update = mock.Mock(return_value=None) self.group.resize = mock.Mock(return_value=None) props = {'DesiredCapacity': 4, 'MinSize': 0, 'MaxSize': 6} self.group._get_new_capacity = mock.Mock(return_value=4) defn = rsrc_defn.ResourceDefinition( 'nopayload', 'AWS::AutoScaling::AutoScalingGroup', props) self.group.handle_update(defn, None, props) self.group.resize.assert_called_once_with(4) self.group._try_rolling_update.assert_called_once_with(props) def test_handle_update_desired_nocap(self): self.group._try_rolling_update = mock.Mock(return_value=None) self.group.resize = mock.Mock(return_value=None) get_size = self.patchobject(grouputils, 'get_size') get_size.return_value = 4 props = {'MinSize': 0, 'MaxSize': 6} defn = rsrc_defn.ResourceDefinition( 'nopayload', 'AWS::AutoScaling::AutoScalingGroup', props) self.group.handle_update(defn, None, props) self.group.resize.assert_called_once_with(4) self.group._try_rolling_update.assert_called_once_with(props) def test_conf_properties_vpc_zone(self): self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() self.stub_SnapshotConstraint_validate() t = template_format.parse(as_template) properties = t['Resources']['WebServerGroup']['Properties'] properties['VPCZoneIdentifier'] = ['xxxx'] stack = utils.parse_stack(t, params=inline_templates.as_params) # create the launch configuration resource conf = stack['LaunchConfig'] self.assertIsNone(conf.validate()) scheduler.TaskRunner(conf.create)() self.assertEqual((conf.CREATE, conf.COMPLETE), conf.state) group = stack['WebServerGroup'] config, props = group._get_conf_properties() self.assertEqual('xxxx', props['SubnetId']) conf.delete() def test_update_in_failed(self): self.group.state_set('CREATE', 'FAILED') # to update the failed asg self.group.resize = mock.Mock(return_value=None) new_defn = rsrc_defn.ResourceDefinition( 'asg', 'AWS::AutoScaling::AutoScalingGroup', {'AvailabilityZones': ['nova'], 'LaunchConfigurationName': 'config', 'MaxSize': 5, 'MinSize': 1, 'DesiredCapacity': 2}) self.group.handle_update(new_defn, None, None) self.group.resize.assert_called_once_with(2) def asg_tmpl_with_bad_updt_policy(): t = template_format.parse(inline_templates.as_template) ag = t['Resources']['WebServerGroup'] ag["UpdatePolicy"] = {"foo": {}} return json.dumps(t) def asg_tmpl_with_default_updt_policy(): t = template_format.parse(inline_templates.as_template) ag = t['Resources']['WebServerGroup'] ag["UpdatePolicy"] = {"AutoScalingRollingUpdate": {}} return json.dumps(t) def asg_tmpl_with_updt_policy(): t = template_format.parse(inline_templates.as_template) ag = t['Resources']['WebServerGroup'] ag["UpdatePolicy"] = {"AutoScalingRollingUpdate": { "MinInstancesInService": "1", "MaxBatchSize": "2", "PauseTime": "PT1S" }} return json.dumps(t) class RollingUpdatePolicyTest(common.HeatTestCase): def setUp(self): super(RollingUpdatePolicyTest, self).setUp() self.fc = fakes_nova.FakeClient() self.stub_keystoneclient(username='test_stack.CfnLBUser') self.stub_ImageConstraint_validate() self.stub_FlavorConstraint_validate() self.stub_SnapshotConstraint_validate() def test_parse_without_update_policy(self): tmpl = template_format.parse(inline_templates.as_template) stack = utils.parse_stack(tmpl, params=inline_templates.as_params) stack.validate() grp = stack['WebServerGroup'] self.assertFalse(grp.update_policy['AutoScalingRollingUpdate']) def test_parse_with_update_policy(self): tmpl = template_format.parse(asg_tmpl_with_updt_policy()) stack = utils.parse_stack(tmpl, params=inline_templates.as_params) stack.validate() tmpl_grp = tmpl['Resources']['WebServerGroup'] tmpl_policy = tmpl_grp['UpdatePolicy']['AutoScalingRollingUpdate'] tmpl_batch_sz = int(tmpl_policy['MaxBatchSize']) grp = stack['WebServerGroup'] self.assertTrue(grp.update_policy) self.assertEqual(1, len(grp.update_policy)) self.assertIn('AutoScalingRollingUpdate', grp.update_policy) policy = grp.update_policy['AutoScalingRollingUpdate'] self.assertIsNotNone(policy) self.assertGreater(len(policy), 0) self.assertEqual(1, int(policy['MinInstancesInService'])) self.assertEqual(tmpl_batch_sz, int(policy['MaxBatchSize'])) self.assertEqual('PT1S', policy['PauseTime']) def test_parse_with_default_update_policy(self): tmpl = template_format.parse(asg_tmpl_with_default_updt_policy()) stack = utils.parse_stack(tmpl, params=inline_templates.as_params) stack.validate() grp = stack['WebServerGroup'] self.assertTrue(grp.update_policy) self.assertEqual(1, len(grp.update_policy)) self.assertIn('AutoScalingRollingUpdate', grp.update_policy) policy = grp.update_policy['AutoScalingRollingUpdate'] self.assertIsNotNone(policy) self.assertGreater(len(policy), 0) self.assertEqual(0, int(policy['MinInstancesInService'])) self.assertEqual(1, int(policy['MaxBatchSize'])) self.assertEqual('PT0S', policy['PauseTime']) def test_parse_with_bad_update_policy(self): tmpl = template_format.parse(asg_tmpl_with_bad_updt_policy()) stack = utils.parse_stack(tmpl, params=inline_templates.as_params) error = self.assertRaises( exception.StackValidationFailed, stack.validate) self.assertIn("foo", six.text_type(error)) def test_parse_with_bad_pausetime_in_update_policy(self): tmpl = template_format.parse(asg_tmpl_with_default_updt_policy()) group = tmpl['Resources']['WebServerGroup'] policy = group['UpdatePolicy']['AutoScalingRollingUpdate'] policy['PauseTime'] = 'P1YT1H' stack = utils.parse_stack(tmpl, params=inline_templates.as_params) error = self.assertRaises( exception.StackValidationFailed, stack.validate) self.assertIn("Only ISO 8601 duration format", six.text_type(error)) class RollingUpdatePolicyDiffTest(common.HeatTestCase): def setUp(self): super(RollingUpdatePolicyDiffTest, self).setUp() self.fc = fakes_nova.FakeClient() self.stub_keystoneclient(username='test_stack.CfnLBUser') def validate_update_policy_diff(self, current, updated): # load current stack current_tmpl = template_format.parse(current) current_stack = utils.parse_stack(current_tmpl, params=inline_templates.as_params) # get the json snippet for the current InstanceGroup resource current_grp = current_stack['WebServerGroup'] current_snippets = dict((n, r.frozen_definition()) for n, r in current_stack.items()) current_grp_json = current_snippets[current_grp.name] # load the updated stack updated_tmpl = template_format.parse(updated) updated_stack = utils.parse_stack(updated_tmpl, params=inline_templates.as_params) # get the updated json snippet for the InstanceGroup resource in the # context of the current stack updated_grp = updated_stack['WebServerGroup'] updated_grp_json = updated_grp.t.freeze() # identify the template difference tmpl_diff = updated_grp.update_template_diff( updated_grp_json, current_grp_json) self.assertTrue(tmpl_diff.update_policy_changed()) # test application of the new update policy in handle_update current_grp._try_rolling_update = mock.MagicMock() current_grp.resize = mock.MagicMock() current_grp.handle_update(updated_grp_json, tmpl_diff, None) self.assertEqual(updated_grp_json._update_policy or {}, current_grp.update_policy.data) def test_update_policy_added(self): self.validate_update_policy_diff(inline_templates.as_template, asg_tmpl_with_updt_policy()) def test_update_policy_updated(self): updt_template = json.loads(asg_tmpl_with_updt_policy()) grp = updt_template['Resources']['WebServerGroup'] policy = grp['UpdatePolicy']['AutoScalingRollingUpdate'] policy['MinInstancesInService'] = '2' policy['MaxBatchSize'] = '4' policy['PauseTime'] = 'PT1M30S' self.validate_update_policy_diff(asg_tmpl_with_updt_policy(), json.dumps(updt_template)) def test_update_policy_removed(self): self.validate_update_policy_diff(asg_tmpl_with_updt_policy(), inline_templates.as_template) class TestCooldownMixin(common.HeatTestCase): def setUp(self): super(TestCooldownMixin, self).setUp() t = template_format.parse(inline_templates.as_template) self.stack = utils.parse_stack(t, params=inline_templates.as_params) self.stack.store() self.group = self.stack['WebServerGroup'] self.group.state_set('CREATE', 'COMPLETE') def test_cooldown_is_in_progress_toosoon(self): cooldown_end = timeutils.utcnow() + datetime.timedelta(seconds=60) previous_meta = {'cooldown_end': { cooldown_end.isoformat(): 'ChangeInCapacity : 1'}} self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertRaises(resource.NoActionRequired, self.group._check_scaling_allowed, 60) def test_cooldown_is_in_progress_toosoon_legacy(self): now = timeutils.utcnow() previous_meta = {'cooldown': { now.isoformat(): 'ChangeInCapacity : 1'}} self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertRaises(resource.NoActionRequired, self.group._check_scaling_allowed, 60) def test_cooldown_is_in_progress_scaling_unfinished(self): previous_meta = {'scaling_in_progress': True} self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertRaises(resource.NoActionRequired, self.group._check_scaling_allowed, 60) def test_scaling_not_in_progress_legacy(self): awhile_ago = timeutils.utcnow() - datetime.timedelta(seconds=100) previous_meta = { 'cooldown': { awhile_ago.isoformat(): 'ChangeInCapacity : 1' }, 'scaling_in_progress': False } self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertIsNone(self.group._check_scaling_allowed(60)) def test_scaling_not_in_progress(self): awhile_after = timeutils.utcnow() + datetime.timedelta(seconds=60) previous_meta = { 'cooldown_end': { awhile_after.isoformat(): 'ChangeInCapacity : 1' }, 'scaling_in_progress': False } timeutils.set_time_override() timeutils.advance_time_seconds(100) self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertIsNone(self.group._check_scaling_allowed(60)) timeutils.clear_time_override() def test_scaling_policy_cooldown_zero(self): now = timeutils.utcnow() previous_meta = { 'cooldown_end': { now.isoformat(): 'ChangeInCapacity : 1' }, 'scaling_in_progress': False } self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertIsNone(self.group._check_scaling_allowed(60)) def test_scaling_policy_cooldown_none(self): now = timeutils.utcnow() previous_meta = { 'cooldown_end': { now.isoformat(): 'ChangeInCapacity : 1' }, 'scaling_in_progress': False } self.patchobject(self.group, 'metadata_get', return_value=previous_meta) self.assertIsNone(self.group._check_scaling_allowed(None)) def test_metadata_is_written(self): nowish = timeutils.utcnow() reason = 'cool as' meta_set = self.patchobject(self.group, 'metadata_set') self.patchobject(timeutils, 'utcnow', return_value=nowish) self.group._finished_scaling(60, reason) cooldown_end = nowish + datetime.timedelta(seconds=60) meta_set.assert_called_once_with( {'cooldown_end': {cooldown_end.isoformat(): reason}, 'scaling_in_progress': False}) def test_metadata_is_written_update(self): nowish = timeutils.utcnow() reason = 'cool as' prev_cooldown_end = nowish + datetime.timedelta(seconds=100) previous_meta = { 'cooldown_end': { prev_cooldown_end.isoformat(): 'ChangeInCapacity : 1' } } self.patchobject(self.group, 'metadata_get', return_value=previous_meta) meta_set = self.patchobject(self.group, 'metadata_set') self.patchobject(timeutils, 'utcnow', return_value=nowish) self.group._finished_scaling(60, reason) meta_set.assert_called_once_with( {'cooldown_end': {prev_cooldown_end.isoformat(): reason}, 'scaling_in_progress': False})