def test_handle_stack_event_returns_expected_event(self, _):
event = {
'PhysicalResourceId':
'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'StackName':
'my-stack',
'LogicalResourceId':
'my-stack',
'StackId':
'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType':
'AWS::CloudFormation::Stack',
'Timestamp':
datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId':
'my-event-id',
'ResourceStatus':
'CREATE_COMPLETE'
}
valid_from_timestamp = datetime.datetime(2016,
4,
1,
8,
3,
25,
548000,
tzinfo=tzutc())
cfn = CloudFormation()
result = cfn.handle_stack_event(event, valid_from_timestamp,
"CREATE_COMPLETE", "my-stack")
self.assertDictEqual(event, result)
def __init__(self, config, dry_run=False):
self.logger = get_logger(root=True)
self.config = config
self.cfn = CloudFormation(region=self.config.region, dry_run=dry_run)
self.parameter_resolver = ParameterResolver(self.cfn,
region=self.config.region)
self.cli_parameters = config.cli_params
def test_update_stack_calls_cloudformation_api_properly_with_stack_policy(
self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.service_role = None
stack.stack_policy = "{foo:baa}"
stack.timeout = 42
cfn = CloudFormation()
cfn.update_stack(stack)
cloudformation_mock.return_value.set_stack_policy.assert_called_once_with(
StackName='stack-name', StackPolicyBody='"{foo:baa}"')
cloudformation_mock.return_value.update_stack.assert_called_once_with(
Capabilities=['CAPABILITY_IAM', 'CAPABILITY_NAMED_IAM'],
Parameters=[('a', 'b')],
StackName='stack-name',
Tags=[('any-tag', 'any-tag-value')],
TemplateBody={'key': 'value'})
def test_handle_stack_event_raises_exception_on_rollback_complete(self, _):
event = {
'PhysicalResourceId':
'arn:aws:sns:eu-west-1:1234567890:my-topic',
'StackName':
'my-stack',
'LogicalResourceId':
'my-stack',
'StackId':
'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType':
'AWS::CloudFormation::Stack',
'Timestamp':
datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId':
'my-event-id',
'ResourceStatus':
'ROLLBACK_COMPLETE'
}
valid_from_timestamp = datetime.datetime(2016,
4,
1,
8,
3,
25,
548000,
tzinfo=tzutc())
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.handle_stack_event(event, valid_from_timestamp,
"CREATE_COMPLETE", "my-stack")
def test_create_stack_calls_cloudformation_api_properly_with_stack_policy(self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.service_role = None
stack.stack_policy = "{foo:baa}"
stack.timeout = 42
cfn = CloudFormation()
cfn.create_stack(stack)
cloudformation_mock.return_value.create_stack.assert_called_once_with(
Capabilities=['CAPABILITY_IAM', 'CAPABILITY_NAMED_IAM'],
OnFailure='ROLLBACK',
Parameters=[('a', 'b')],
StackName='stack-name',
Tags=[('any-tag', 'any-tag-value')],
TemplateBody={'key': 'value'},
StackPolicyBody='"{foo:baa}"'
)
def test_create_stack_calls_cloudformation_api_properly_with_service_role(self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.service_role = "arn:aws:iam::1234567890:role/my-role"
stack.stack_policy = None
stack.failure_action = None
stack.disable_rollback = False
stack.timeout = 42
cfn = CloudFormation()
cfn.create_stack(stack)
cloudformation_mock.return_value.create_stack.assert_called_once_with(
Capabilities=['CAPABILITY_IAM', 'CAPABILITY_NAMED_IAM'],
Parameters=[('a', 'b')],
StackName='stack-name',
Tags=[('any-tag', 'any-tag-value')],
TemplateBody={'key': 'value'},
RoleARN="arn:aws:iam::1234567890:role/my-role"
)
def test_create_stack_calls_cloudformation_api_properly_with_disable_rollback_true(self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.service_role = None
stack.stack_policy = "{foo:baa}"
stack.failure_action = "DO_NOTHING"
stack.disable_rollback = "True"
stack.timeout = 42
cfn = CloudFormation()
cfn.create_stack(stack)
cloudformation_mock.return_value.create_stack.assert_called_once_with(
Capabilities=['CAPABILITY_IAM', 'CAPABILITY_NAMED_IAM'],
OnFailure='DO_NOTHING',
DisableRollback=True,
Parameters=[('a', 'b')],
StackName='stack-name',
Tags=[('any-tag', 'any-tag-value')],
TemplateBody={'key': 'value'},
StackPolicyBody='"{foo:baa}"'
)
def test_wait_for_stack_event_returns_on_start_event_with_valid_timestamp(
self, cloudformation_mock):
timestamp = datetime.datetime.utcnow()
template_mock = Mock(spec=CloudFormationTemplate)
template_mock.url = "foo.yml"
template_mock.get_template_body_dict.return_value = {}
event = StackEvent()
event.resource_type = "AWS::CloudFormation::Stack"
event.resource_status = "UPDATE_IN_PROGRESS"
event.event_id = "123"
event.timestamp = timestamp
stack_events_mock = Mock()
stack_events_mock.describe_stack_events.return_value = [event]
cloudformation_mock.connect_to_region.return_value = stack_events_mock
cfn = CloudFormation()
event = cfn.wait_for_stack_events("foo",
"UPDATE_IN_PROGRESS",
timestamp - timedelta(seconds=10),
timeout=10)
self.assertEqual(timestamp, event.timestamp)
def test_handle_stack_event_returns_none_on_rollback_in_progress_state(
self, _):
event = {
'PhysicalResourceId':
'arn:aws:sns:eu-west-1:1234567890:my-topic',
'StackName':
'my-stack',
'LogicalResourceId':
'my-stack',
'StackId':
'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType':
'AWS::CloudFormation::Stack',
'Timestamp':
datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId':
'my-event-id',
'ResourceStatus':
'ROLLBACK_IN_PROGRESS',
'ResourceStatusReason':
'Foo'
}
valid_from_timestamp = datetime.datetime(2016,
4,
1,
8,
3,
25,
548000,
tzinfo=tzutc())
cfn = CloudFormation()
result = cfn.handle_stack_event(event, valid_from_timestamp,
"CREATE_COMPLETE", "my-stack")
self.assertIsNone(result)
def test_get_stack_parameters_dict_returns_empty_dict_for_empty_parameters(self, _, get_stack_mock):
cfn = CloudFormation()
stack_mock = Mock()
stack_mock.parameters = []
get_stack_mock.return_value = stack_mock
result = cfn.get_stack_parameters_dict('foo')
self.assertDictEqual({}, result)
def test_validate_stack_is_ready_for_action_raises_proper_exception_on_boto_error(self, cloudformation_mock):
cloudformation_mock.return_value.describe_stacks.side_effect = BotoServerError('400', 'Bad Request')
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnSphereBotoError):
cfn.validate_stack_is_ready_for_action(stack)
cloudformation_mock.return_value.describe_stacks.assert_called_once_with('my-stack')
def test_get_stack_parameters_dict_returns_empty_dict_for_empty_parameters(self, _, get_stack_mock):
cfn = CloudFormation()
stack_mock = Mock()
stack_mock.parameters = []
get_stack_mock.return_value = stack_mock
result = cfn.get_stack_parameters_dict('foo')
self.assertDictEqual({}, result)
def test_validate_stack_is_ready_for_action_passes_if_stack_is_in_rollback_complete_state(self, get_stack_mock):
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "ROLLBACK_COMPLETE"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
cfn.validate_stack_is_ready_for_action(stack)
def test_validate_stack_is_ready_for_action_passes_if_stack_is_in_rollback_complete_state(self, get_stack_mock):
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "ROLLBACK_COMPLETE"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
cfn.validate_stack_is_ready_for_action(stack)
def test_get_stacks_correctly_calls_aws_api(self, cloudformation_mock):
stacks = [Mock(spec=Stack), Mock(spec=Stack)]
result = ResultSet()
result.extend(stacks)
result.next_token = None
cloudformation_mock.connect_to_region.return_value.describe_stacks.return_value = result
cfn = CloudFormation()
self.assertListEqual(stacks, cfn.get_stacks())
def test_get_stacks_correctly_calls_aws_api(self, cloudformation_mock):
stacks = [Mock(spec=Stack), Mock(spec=Stack)]
result = ResultSet()
result.extend(stacks)
result.next_token = None
cloudformation_mock.connect_to_region.return_value.describe_stacks.return_value = result
cfn = CloudFormation()
self.assertListEqual(stacks, cfn.get_stacks())
def test_validate_stack_is_ready_for_action_raises_exception_on_unknown_stack_state(self, get_stack_mock):
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "FOO"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.validate_stack_is_ready_for_action(stack)
def test_get_stack_parameters_dict_returns_proper_dict(self, _, get_stack_mock):
cfn = CloudFormation()
stack_mock = Mock()
stack_mock.parameters = [{"ParameterKey": "myKey1", "ParameterValue": "myValue1"},
{"ParameterKey": "myKey2", "ParameterValue": "myValue2"}]
get_stack_mock.return_value = stack_mock
result = cfn.get_stack_parameters_dict('foo')
self.assertDictEqual({'myKey1': 'myValue1', 'myKey2': 'myValue2'}, result)
def test_validate_stack_is_ready_for_action_raises_exception_on_unknown_stack_state(self, get_stack_mock):
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "FOO"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.validate_stack_is_ready_for_action(stack)
def test_validate_stack_is_ready_for_action_raises_exception_on_create_in_progress(self, get_stack_mock):
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "CREATE_IN_PROGRESS"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.validate_stack_is_ready_for_action(stack)
def test_validate_stack_is_ready_for_action_raises_exception_on_create_in_progress(self, get_stack_mock):
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "CREATE_IN_PROGRESS"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.validate_stack_is_ready_for_action(stack)
def test_get_stack_parameters_dict_returns_proper_dict(self, _, get_stack_mock):
cfn = CloudFormation()
stack_mock = Mock()
stack_mock.parameters = [{"ParameterKey": "myKey1", "ParameterValue": "myValue1"},
{"ParameterKey": "myKey2", "ParameterValue": "myValue2"}]
get_stack_mock.return_value = stack_mock
result = cfn.get_stack_parameters_dict('foo')
self.assertDictEqual({'myKey1': 'myValue1', 'myKey2': 'myValue2'}, result)
def test_validate_stack_is_ready_for_action_passes_if_stack_is_in_good_state(self, cloudformation_mock):
describe_stack_mock = Mock()
describe_stack_mock.stack_status = "UPDATE_COMPLETE"
describe_stack_mock.stack_name = "my-stack"
cloudformation_mock.return_value.describe_stacks.return_value = [describe_stack_mock]
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
cfn.validate_stack_is_ready_for_action(stack)
cloudformation_mock.return_value.describe_stacks.assert_called_once_with('my-stack')
def test_validate_stack_is_ready_for_action_raises_proper_exception_on_boto_error(self, get_stack_mock):
get_stack_mock.side_effect = CfnSphereBotoError(None)
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "UPDATE_COMPLETE"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnSphereBotoError):
cfn.validate_stack_is_ready_for_action(stack)
def test_validate_stack_is_ready_for_action_raises_proper_exception_on_boto_error(self, get_stack_mock):
get_stack_mock.side_effect = CfnSphereBotoError(None)
stack_mock = Mock()
stack_mock.stack_name = "my-stack"
stack_mock.stack_status = "UPDATE_COMPLETE"
get_stack_mock.return_value = stack_mock
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnSphereBotoError):
cfn.validate_stack_is_ready_for_action(stack)
def test_validate_stack_is_ready_for_action_raises_proper_exception_on_boto_error(
self, cloudformation_mock):
cloudformation_mock.return_value.describe_stacks.side_effect = BotoServerError(
'400', 'Bad Request')
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnSphereBotoError):
cfn.validate_stack_is_ready_for_action(stack)
cloudformation_mock.return_value.describe_stacks.assert_called_once_with(
'my-stack')
def test_delete_stack_calls_wait_properly(self, wait_mock, _a, _b):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = []
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.timeout = 42
cfn = CloudFormation()
cfn.delete_stack(stack)
wait_mock.assert_called_once_with(stack.name, 'delete', stack.timeout)
def test_validate_stack_is_ready_for_action_raises_exception_on_bad_stack_state(self, cloudformation_mock):
describe_stack_mock = Mock()
describe_stack_mock.stack_status = "UPDATE_IN_PROGRESS"
describe_stack_mock.stack_name = "my-stack"
cloudformation_mock.return_value.describe_stacks.return_value = [describe_stack_mock]
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.validate_stack_is_ready_for_action(stack)
cloudformation_mock.return_value.describe_stacks.assert_called_once_with('my-stack')
def test_get_stacks_correctly_aggregates_paged_results(self, cloudformation_mock):
stacks_1 = [Mock(spec=Stack), Mock(spec=Stack)]
stacks_2 = [Mock(spec=Stack), Mock(spec=Stack)]
result_1 = ResultSet()
result_1.extend(stacks_1)
result_1.next_token = "my-next-token"
result_2 = ResultSet()
result_2.extend(stacks_2)
result_2.next_token = None
cloudformation_mock.connect_to_region.return_value.describe_stacks.side_effect = [result_1, result_2]
cfn = CloudFormation()
self.assertListEqual(stacks_1 + stacks_2, cfn.get_stacks())
def test_stack_exists_returns_false_for_non_existing_stack(
self, get_stack_mock):
get_stack_mock.side_effect = ClientError(
{"Error": {
"Message": "Stack with id stack3 does not exist"
}}, "Foo")
self.assertFalse(CloudFormation().stack_exists("stack3"))
def test_handle_stack_event_returns_none_if_event_is_no_stack_event(self, _):
event = {
'PhysicalResourceId': 'arn:aws:sns:eu-west-1:1234567890:my-topic',
'StackName': 'my-stack',
'LogicalResourceId': 'Topic',
'StackId': 'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType': 'AWS::SNS::Topic',
'Timestamp': datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId': 'my-event-id',
'ResourceStatus': 'CREATE_COMPLETE'
}
valid_from_timestamp = datetime.datetime(2016, 4, 1, 8, 3, 25, 548000, tzinfo=tzutc())
cfn = CloudFormation()
result = cfn.handle_stack_event(event, valid_from_timestamp, "CREATE_COMPLETE", "my-stack")
self.assertIsNone(result)
def test_handle_stack_event_raises_exception_on_rollback_complete(self, _):
event = {
'PhysicalResourceId': 'arn:aws:sns:eu-west-1:1234567890:my-topic',
'StackName': 'my-stack',
'LogicalResourceId': 'VPC',
'StackId': 'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType': 'AWS::CloudFormation::Stack',
'Timestamp': datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId': 'my-event-id',
'ResourceStatus': 'ROLLBACK_COMPLETE'
}
valid_from_timestamp = datetime.datetime(2016, 4, 1, 8, 3, 25, 548000, tzinfo=tzutc())
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.handle_stack_event(event, valid_from_timestamp, "CREATE_COMPLETE")
def test_handle_stack_event_returns_none_if_event_has_not_expected_state(self, _):
event = {
'PhysicalResourceId': 'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'StackName': 'my-stack',
'LogicalResourceId': 'cfn-sphere-test-vpc',
'StackId': 'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType': 'AWS::CloudFormation::Stack',
'Timestamp': datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId': 'my-event-id',
'ResourceStatus': 'CREATE_IN_PROGRESS'
}
valid_from_timestamp = datetime.datetime(2016, 4, 1, 8, 3, 25, 548000, tzinfo=tzutc())
cfn = CloudFormation()
result = cfn.handle_stack_event(event, valid_from_timestamp, "CREATE_COMPLETE")
self.assertIsNone(result)
def test_validate_stack_is_ready_for_action_passes_if_stack_is_in_good_state(
self, cloudformation_mock):
describe_stack_mock = Mock()
describe_stack_mock.stack_status = "UPDATE_COMPLETE"
describe_stack_mock.stack_name = "my-stack"
cloudformation_mock.return_value.describe_stacks.return_value = [
describe_stack_mock
]
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
cfn.validate_stack_is_ready_for_action(stack)
cloudformation_mock.return_value.describe_stacks.assert_called_once_with(
'my-stack')
def test_handle_stack_event_returns_none_on_rollback_in_progress_state(self, _):
event = {
'PhysicalResourceId': 'arn:aws:sns:eu-west-1:1234567890:my-topic',
'StackName': 'my-stack',
'LogicalResourceId': 'VPC',
'StackId': 'arn:aws:cloudformation:eu-west-1:1234567890:stack/my-stack/my-stack-id',
'ResourceType': 'AWS::CloudFormation::Stack',
'Timestamp': datetime.datetime(2016, 4, 1, 8, 3, 27, 548000, tzinfo=tzutc()),
'EventId': 'my-event-id',
'ResourceStatus': 'ROLLBACK_IN_PROGRESS',
'ResourceStatusReason': 'Foo'
}
valid_from_timestamp = datetime.datetime(2016, 4, 1, 8, 3, 25, 548000, tzinfo=tzutc())
cfn = CloudFormation()
result = cfn.handle_stack_event(event, valid_from_timestamp, "CREATE_COMPLETE")
self.assertIsNone(result)
def test_get_stack_parameters_dict_returns_proper_dict(self, _, get_stack_mock):
cfn = CloudFormation()
parameter_1 = Mock()
parameter_1.key = "myKey1"
parameter_1.value = "myValue1"
parameter_2 = Mock()
parameter_2.key = "myKey2"
parameter_2.value = "myValue2"
stack_mock = Mock()
stack_mock.parameters = [parameter_1, parameter_2]
get_stack_mock.return_value = stack_mock
result = cfn.get_stack_parameters_dict('foo')
self.assertDictEqual({'myKey1': 'myValue1', 'myKey2': 'myValue2'}, result)
def test_get_stacks_dict_always_returns_empty_list_parameters_and_outputs(
self, get_stack_descriptions_mock):
get_stack_descriptions_mock.return_value = [{"StackName": "Foo"}]
self.assertEqual({'Foo': {
'outputs': [],
'parameters': []
}},
CloudFormation().get_stacks_dict())
def test_validate_stack_is_ready_for_action_raises_exception_on_bad_stack_state(
self, cloudformation_mock):
describe_stack_mock = Mock()
describe_stack_mock.stack_status = "UPDATE_IN_PROGRESS"
describe_stack_mock.stack_name = "my-stack"
cloudformation_mock.return_value.describe_stacks.return_value = [
describe_stack_mock
]
stack = CloudFormationStack('', [], 'my-stack', 'my-region')
cfn = CloudFormation()
with self.assertRaises(CfnStackActionFailedException):
cfn.validate_stack_is_ready_for_action(stack)
cloudformation_mock.return_value.describe_stacks.assert_called_once_with(
'my-stack')
def test_get_stacks_correctly_aggregates_paged_results(
self, cloudformation_mock):
stacks_1 = [Mock(spec=Stack), Mock(spec=Stack)]
stacks_2 = [Mock(spec=Stack), Mock(spec=Stack)]
result_1 = ResultSet()
result_1.extend(stacks_1)
result_1.next_token = "my-next-token"
result_2 = ResultSet()
result_2.extend(stacks_2)
result_2.next_token = None
cloudformation_mock.connect_to_region.return_value.describe_stacks.side_effect = [
result_1, result_2
]
cfn = CloudFormation()
self.assertListEqual(stacks_1 + stacks_2, cfn.get_stacks())
def test_delete_stack_calls_cloudformation_api_properly(
self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.service_role = None
stack.stack_policy = "{foo:baa}"
stack.timeout = 42
cfn = CloudFormation()
cfn.delete_stack(stack)
cloudformation_mock.return_value.delete_stack.assert_called_once_with(
StackName=stack.name)
def test_is_boto_stack_does_not_exist_exception_returns_true_for_message2(
self):
exception = Mock(spec=ClientError)
exception.response = {
"Error": {
"Message": "Stack with id foo does not exist"
}
}
self.assertTrue(
CloudFormation.is_boto_stack_does_not_exist_exception(exception))
def test_update_stack_calls_cloudformation_api_properly(self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.tags = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.timeout = 42
cfn = CloudFormation()
cfn.update_stack(stack)
cloudformation_mock.return_value.update_stack.assert_called_once_with('stack-name',
capabilities=['CAPABILITY_IAM'],
parameters=[('a', 'b')],
tags=[('any-tag', 'any-tag-value')],
template_body={'key': 'value'})
def test_is_boto_no_update_required_exception_returns_true_for_message(
self):
exception = Mock(spec=ClientError)
exception.response = {
"Error": {
"Message": "No updates are to be performed."
}
}
self.assertTrue(
CloudFormation.is_boto_no_update_required_exception(exception))
def test_wait_for_stack_event_returns_on_update_complete(self, cloudformation_mock):
timestamp = datetime.datetime.utcnow()
template_mock = Mock(spec=CloudFormationTemplate)
template_mock.url = "foo.yml"
template_mock.get_template_body_dict.return_value = {}
event = StackEvent()
event.resource_type = "AWS::CloudFormation::Stack"
event.resource_status = "UPDATE_COMPLETE"
event.event_id = "123"
event.timestamp = timestamp
stack_events_mock = Mock()
stack_events_mock.describe_stack_events.return_value = [event]
cloudformation_mock.connect_to_region.return_value = stack_events_mock
cfn = CloudFormation()
cfn.wait_for_stack_events("foo", "UPDATE_COMPLETE", timestamp - timedelta(seconds=10),
timeout=10)
def test_update_stack_calls_cloudformation_api_properly(
self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.tags = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.timeout = 42
cfn = CloudFormation()
cfn.update_stack(stack)
cloudformation_mock.return_value.update_stack.assert_called_once_with(
'stack-name',
capabilities=['CAPABILITY_IAM'],
parameters=[('a', 'b')],
tags=[('any-tag', 'any-tag-value')],
template_body={'key': 'value'})
def test_get_stack_parameters_dict_returns_proper_dict(
self, _, get_stack_mock):
cfn = CloudFormation()
parameter_1 = Mock()
parameter_1.key = "myKey1"
parameter_1.value = "myValue1"
parameter_2 = Mock()
parameter_2.key = "myKey2"
parameter_2.value = "myValue2"
stack_mock = Mock()
stack_mock.parameters = [parameter_1, parameter_2]
get_stack_mock.return_value = stack_mock
result = cfn.get_stack_parameters_dict('foo')
self.assertDictEqual({
'myKey1': 'myValue1',
'myKey2': 'myValue2'
}, result)
def test_get_stacks_dict_returns_stack_dict(self,
get_stack_descriptions_mock):
get_stack_descriptions_mock.return_value = [{
"StackName": "Foo",
"Parameters": [],
"Outputs": []
}]
self.assertEqual({'Foo': {
'outputs': [],
'parameters': []
}},
CloudFormation().get_stacks_dict())
def test_wait_for_stack_event_raises_exception_on_rollback(self, cloudformation_mock):
timestamp = datetime.datetime.utcnow()
template_mock = Mock(spec=CloudFormationTemplate)
template_mock.url = "foo.yml"
template_mock.get_template_body_dict.return_value = {}
event = StackEvent()
event.resource_type = "AWS::CloudFormation::Stack"
event.resource_status = "ROLLBACK_COMPLETE"
event.event_id = "123"
event.timestamp = timestamp
stack_events_mock = Mock()
stack_events_mock.describe_stack_events.return_value = [event]
cloudformation_mock.connect_to_region.return_value = stack_events_mock
cfn = CloudFormation()
with self.assertRaises(Exception):
cfn.wait_for_stack_events("foo", ["UPDATE_COMPLETE"], timestamp - timedelta(seconds=10),
timeout=10)
def test_set_stack_policy_calls_cloudformation_api_properly(
self, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.service_role = None
stack.stack_policy = """{"Statement":[{"Effect":"Allow"}]}"""
stack.failure_action = None
stack.disable_rollback = False
stack.timeout = 42
cfn = CloudFormation()
cfn._set_stack_policy(stack)
cloudformation_mock.return_value.set_stack_policy.assert_called_once_with(
StackName='stack-name',
StackPolicyBody='"{\\"Statement\\":[{\\"Effect\\":\\"Allow\\"}]}"')
def test_create_stack_calls_cloudformation_api_properly(self, _, cloudformation_mock):
stack = Mock(spec=CloudFormationStack)
stack.name = "stack-name"
stack.get_parameters_list.return_value = [('a', 'b')]
stack.get_tags_list.return_value = [('any-tag', 'any-tag-value')]
stack.parameters = {}
stack.template = Mock(spec=CloudFormationTemplate)
stack.template.name = "template-name"
stack.template.get_template_json.return_value = {'key': 'value'}
stack.timeout = 42
cfn = CloudFormation()
cfn.create_stack(stack)
cloudformation_mock.return_value.create_stack.assert_called_once_with(
Capabilities=['CAPABILITY_IAM'],
OnFailure='DELETE',
Parameters=[('a', 'b')],
StackName='stack-name',
Tags=[('any-tag', 'any-tag-value')],
TemplateBody={'key': 'value'},
TimeoutInMinutes=42)
def test_wait_for_stack_event_returns_on_start_event_with_valid_timestamp(self, cloudformation_mock):
timestamp = datetime.datetime.utcnow()
template_mock = Mock(spec=CloudFormationTemplate)
template_mock.url = "foo.yml"
template_mock.get_template_body_dict.return_value = {}
event = StackEvent()
event.resource_type = "AWS::CloudFormation::Stack"
event.resource_status = "UPDATE_IN_PROGRESS"
event.event_id = "123"
event.timestamp = timestamp
stack_events_mock = Mock()
stack_events_mock.describe_stack_events.return_value = [event]
cloudformation_mock.connect_to_region.return_value = stack_events_mock
cfn = CloudFormation()
event = cfn.wait_for_stack_events("foo", "UPDATE_IN_PROGRESS",
timestamp - timedelta(seconds=10),
timeout=10)
self.assertEqual(timestamp, event.timestamp)
def test_wait_for_stack_event_returns_on_update_complete(
self, cloudformation_mock):
timestamp = datetime.datetime.utcnow()
template_mock = Mock(spec=CloudFormationTemplate)
template_mock.url = "foo.yml"
template_mock.get_template_body_dict.return_value = {}
event = StackEvent()
event.resource_type = "AWS::CloudFormation::Stack"
event.resource_status = "UPDATE_COMPLETE"
event.event_id = "123"
event.timestamp = timestamp
stack_events_mock = Mock()
stack_events_mock.describe_stack_events.return_value = [event]
cloudformation_mock.connect_to_region.return_value = stack_events_mock
cfn = CloudFormation()
cfn.wait_for_stack_events("foo",
"UPDATE_COMPLETE",
timestamp - timedelta(seconds=10),
timeout=10)
def __init__(self, config):
self.logger = get_logger(root=True)
self.config = config
self.cfn = CloudFormation(region=self.config.region)
self.parameter_resolver = ParameterResolver(region=self.config.region)
class StackActionHandler(object):
def __init__(self, config):
self.logger = get_logger(root=True)
self.config = config
self.cfn = CloudFormation(region=self.config.region)
self.parameter_resolver = ParameterResolver(region=self.config.region)
def create_or_update_stacks(self):
existing_stacks = self.cfn.get_stack_names()
desired_stacks = self.config.stacks
stack_processing_order = DependencyResolver().get_stack_order(desired_stacks)
if len(stack_processing_order) > 1:
self.logger.info(
"Will process stacks in the following order: {0}".format(", ".join(stack_processing_order)))
for stack_name in stack_processing_order:
stack_config = self.config.stacks.get(stack_name)
raw_template = FileLoader.get_file_from_url(stack_config.template_url, stack_config.working_dir)
template = CloudFormationTemplateTransformer.transform_template(raw_template)
combined_tags = dict(self.config.tags)
combined_tags.update(stack_config.tags)
parameters = self.parameter_resolver.resolve_parameter_values(stack_config.parameters, stack_name)
stack = CloudFormationStack(template=template, parameters=parameters, tags=combined_tags,
name=stack_name, region=self.config.region, timeout=stack_config.timeout)
if stack_name in existing_stacks:
self.cfn.validate_stack_is_ready_for_action(stack)
self.cfn.update_stack(stack)
else:
self.cfn.create_stack(stack)
CustomResourceHandler.process_post_resources(stack)
def delete_stacks(self):
existing_stacks = self.cfn.get_stack_names()
stacks = self.config.stacks
stack_processing_order = DependencyResolver().get_stack_order(stacks)
stack_processing_order.reverse()
self.logger.info("Will delete stacks in the following order: {0}".format(", ".join(stack_processing_order)))
for stack_name in stack_processing_order:
if stack_name in existing_stacks:
stack = CloudFormationStack(None, None, stack_name, None, None)
self.cfn.validate_stack_is_ready_for_action(stack)
self.cfn.delete_stack(stack)
else:
self.logger.info("Stack {0} is already deleted".format(stack_name))
def test_is_boto_stack_does_not_exist_exception_returns_true_for_message2(self):
exception = Mock(spec=ClientError)
exception.response = {"Error": {"Message": "Stack with id foo does not exist"}}
self.assertTrue(CloudFormation.is_boto_stack_does_not_exist_exception(exception))
def test_is_boto_stack_does_not_exist_exception_returns_false_with_other_message(self):
exception = Mock(spec=ClientError)
exception.response = {"Error": {"Message": "Other error"}}
self.assertFalse(CloudFormation.is_boto_stack_does_not_exist_exception(exception))
def test_is_boto_stack_does_not_exist_exception_returns_false_with_other_exception(self):
exception = Mock(spec=Exception)
exception.message = "No updates are to be performed."
self.assertFalse(CloudFormation.is_boto_stack_does_not_exist_exception(exception))
def test_is_boto_no_update_required_exception_returns_true_for_message(self):
exception = Mock(spec=ClientError)
exception.response = {"Error": {"Message": "No updates are to be performed."}}
self.assertTrue(CloudFormation.is_boto_no_update_required_exception(exception))
def test_is_boto_no_update_required_exception_returns_false_without_message(self):
exception = Mock(spec=ClientError)
exception.response = {"Error": {"Message": "Something went wrong"}}
self.assertFalse(CloudFormation.is_boto_no_update_required_exception(exception))
