4cfd9a10ac
Currently the update preview code has no support for previewing the effect of an update on nested stacks, which I assume was an oversight in the original implementation. So this adds a show_nested flag to the API which allows enabling recursive preview of the whole update including nested stacks. Closes-Bug: #1521971 Depends-On: I06f3b52d5d48dd5e6e266321e58ca8e6116d6017 Change-Id: I96af4d2f07056846aac7ae9ad9b6eb160e8bd51a
299 lines
11 KiB
Python
299 lines
11 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from heat_integrationtests.functional import functional_base
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test_template_one_resource = {
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'heat_template_version': '2013-05-23',
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'description': 'Test template to create one instance.',
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'resources': {
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'test1': {
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'type': 'OS::Heat::TestResource',
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'properties': {
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'value': 'Test1',
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'fail': False,
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'update_replace': False,
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'wait_secs': 0
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}
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}
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}
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}
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test_template_two_resource = {
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'heat_template_version': '2013-05-23',
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'description': 'Test template to create two instance.',
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'resources': {
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'test1': {
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'type': 'OS::Heat::TestResource',
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'properties': {
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'value': 'Test1',
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'fail': False,
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'update_replace': False,
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'wait_secs': 0
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}
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},
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'test2': {
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'type': 'OS::Heat::TestResource',
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'properties': {
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'value': 'Test1',
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'fail': False,
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'update_replace': False,
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'wait_secs': 0
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}
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}
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}
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}
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class UpdatePreviewBase(functional_base.FunctionalTestsBase):
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def assert_empty_sections(self, changes, empty_sections):
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for section in empty_sections:
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self.assertEqual([], changes[section])
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class UpdatePreviewStackTest(UpdatePreviewBase):
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def test_add_resource(self):
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self.stack_identifier = self.stack_create(
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template=test_template_one_resource)
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result = self.preview_update_stack(self.stack_identifier,
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test_template_two_resource)
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changes = result['resource_changes']
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unchanged = changes['unchanged'][0]['resource_name']
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self.assertEqual('test1', unchanged)
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added = changes['added'][0]['resource_name']
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self.assertEqual('test2', added)
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self.assert_empty_sections(changes, ['updated', 'replaced', 'deleted'])
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def test_no_change(self):
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self.stack_identifier = self.stack_create(
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template=test_template_one_resource)
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result = self.preview_update_stack(self.stack_identifier,
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test_template_one_resource)
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changes = result['resource_changes']
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unchanged = changes['unchanged'][0]['resource_name']
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self.assertEqual('test1', unchanged)
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self.assert_empty_sections(
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changes, ['updated', 'replaced', 'deleted', 'added'])
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def test_update_resource(self):
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self.stack_identifier = self.stack_create(
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template=test_template_one_resource)
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test_template_updated_resource = {
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'heat_template_version': '2013-05-23',
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'description': 'Test template to create one instance.',
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'resources': {
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'test1': {
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'type': 'OS::Heat::TestResource',
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'properties': {
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'value': 'Test1 foo',
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'fail': False,
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'update_replace': False,
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'wait_secs': 0
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}
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}
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}
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}
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result = self.preview_update_stack(self.stack_identifier,
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test_template_updated_resource)
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changes = result['resource_changes']
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updated = changes['updated'][0]['resource_name']
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self.assertEqual('test1', updated)
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self.assert_empty_sections(
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changes, ['added', 'unchanged', 'replaced', 'deleted'])
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def test_replaced_resource(self):
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self.stack_identifier = self.stack_create(
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template=test_template_one_resource)
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new_template = {
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'heat_template_version': '2013-05-23',
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'description': 'Test template to create one instance.',
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'resources': {
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'test1': {
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'type': 'OS::Heat::TestResource',
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'properties': {
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'update_replace': True,
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}
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}
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}
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}
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result = self.preview_update_stack(self.stack_identifier, new_template)
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changes = result['resource_changes']
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replaced = changes['replaced'][0]['resource_name']
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self.assertEqual('test1', replaced)
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self.assert_empty_sections(
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changes, ['added', 'unchanged', 'updated', 'deleted'])
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def test_delete_resource(self):
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self.stack_identifier = self.stack_create(
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template=test_template_two_resource)
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result = self.preview_update_stack(self.stack_identifier,
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test_template_one_resource)
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changes = result['resource_changes']
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unchanged = changes['unchanged'][0]['resource_name']
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self.assertEqual('test1', unchanged)
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deleted = changes['deleted'][0]['resource_name']
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self.assertEqual('test2', deleted)
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self.assert_empty_sections(changes, ['updated', 'replaced', 'added'])
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class UpdatePreviewStackTestNested(UpdatePreviewBase):
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template_nested_parent = '''
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heat_template_version: 2016-04-08
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resources:
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nested1:
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type: nested1.yaml
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'''
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template_nested1 = '''
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heat_template_version: 2016-04-08
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resources:
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nested2:
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type: nested2.yaml
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'''
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template_nested2 = '''
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heat_template_version: 2016-04-08
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resources:
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random:
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type: OS::Heat::RandomString
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'''
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template_nested2_2 = '''
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heat_template_version: 2016-04-08
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resources:
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random:
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type: OS::Heat::RandomString
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random2:
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type: OS::Heat::RandomString
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'''
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def _get_by_resource_name(self, changes, name, action):
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filtered_l = [x for x in changes[action]
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if x['resource_name'] == name]
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self.assertEqual(1, len(filtered_l))
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return filtered_l[0]
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def test_nested_resources_nochange(self):
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files = {'nested1.yaml': self.template_nested1,
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'nested2.yaml': self.template_nested2}
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self.stack_identifier = self.stack_create(
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template=self.template_nested_parent, files=files)
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result = self.preview_update_stack(
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self.stack_identifier,
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template=self.template_nested_parent,
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files=files, show_nested=True)
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changes = result['resource_changes']
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# The nested random resource should be unchanged, but we always
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# update nested stacks even when there are no changes
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self.assertEqual(1, len(changes['unchanged']))
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self.assertEqual('random', changes['unchanged'][0]['resource_name'])
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self.assertEqual('nested2', changes['unchanged'][0]['parent_resource'])
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self.assertEqual(2, len(changes['updated']))
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u_nested1 = self._get_by_resource_name(changes, 'nested1', 'updated')
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self.assertNotIn('parent_resource', u_nested1)
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u_nested2 = self._get_by_resource_name(changes, 'nested2', 'updated')
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self.assertEqual('nested1', u_nested2['parent_resource'])
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self.assert_empty_sections(changes, ['replaced', 'deleted', 'added'])
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def test_nested_resources_add(self):
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files = {'nested1.yaml': self.template_nested1,
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'nested2.yaml': self.template_nested2}
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self.stack_identifier = self.stack_create(
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template=self.template_nested_parent, files=files)
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files['nested2.yaml'] = self.template_nested2_2
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result = self.preview_update_stack(
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self.stack_identifier,
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template=self.template_nested_parent,
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files=files, show_nested=True)
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changes = result['resource_changes']
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# The nested random resource should be unchanged, but we always
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# update nested stacks even when there are no changes
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self.assertEqual(1, len(changes['unchanged']))
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self.assertEqual('random', changes['unchanged'][0]['resource_name'])
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self.assertEqual('nested2', changes['unchanged'][0]['parent_resource'])
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self.assertEqual(1, len(changes['added']))
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self.assertEqual('random2', changes['added'][0]['resource_name'])
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self.assertEqual('nested2', changes['added'][0]['parent_resource'])
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self.assert_empty_sections(changes, ['replaced', 'deleted'])
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def test_nested_resources_delete(self):
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files = {'nested1.yaml': self.template_nested1,
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'nested2.yaml': self.template_nested2_2}
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self.stack_identifier = self.stack_create(
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template=self.template_nested_parent, files=files)
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files['nested2.yaml'] = self.template_nested2
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result = self.preview_update_stack(
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self.stack_identifier,
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template=self.template_nested_parent,
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files=files, show_nested=True)
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changes = result['resource_changes']
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# The nested random resource should be unchanged, but we always
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# update nested stacks even when there are no changes
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self.assertEqual(1, len(changes['unchanged']))
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self.assertEqual('random', changes['unchanged'][0]['resource_name'])
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self.assertEqual('nested2', changes['unchanged'][0]['parent_resource'])
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self.assertEqual(1, len(changes['deleted']))
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self.assertEqual('random2', changes['deleted'][0]['resource_name'])
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self.assertEqual('nested2', changes['deleted'][0]['parent_resource'])
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self.assert_empty_sections(changes, ['replaced', 'added'])
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def test_nested_resources_replace(self):
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files = {'nested1.yaml': self.template_nested1,
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'nested2.yaml': self.template_nested2}
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self.stack_identifier = self.stack_create(
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template=self.template_nested_parent, files=files)
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parent_none = self.template_nested_parent.replace(
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'nested1.yaml', 'OS::Heat::None')
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result = self.preview_update_stack(
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self.stack_identifier,
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template=parent_none,
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show_nested=True)
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changes = result['resource_changes']
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# The nested random resource should be unchanged, but we always
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# update nested stacks even when there are no changes
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self.assertEqual(1, len(changes['replaced']))
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self.assertEqual('nested1', changes['replaced'][0]['resource_name'])
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self.assertEqual(2, len(changes['deleted']))
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d_random = self._get_by_resource_name(changes, 'random', 'deleted')
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self.assertEqual('nested2', d_random['parent_resource'])
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d_nested2 = self._get_by_resource_name(changes, 'nested2', 'deleted')
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self.assertEqual('nested1', d_nested2['parent_resource'])
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self.assert_empty_sections(changes, ['updated', 'unchanged', 'added'])
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