def test_transform_template_raises_exception_on_embedded_reference(self):
template_dict = {
'key1': {"foo": ["|foo|foo", "b"]}
}
with self.assertRaises(TemplateErrorException):
CloudFormationTemplateTransformer.transform_template(CloudFormationTemplate(template_dict, 'foo'))
def test_transform_template_raises_exception_on_unknown_at_reference_key(self):
template_dict = {
'@foo@': "foo"
}
with self.assertRaises(TemplateErrorException):
CloudFormationTemplateTransformer.transform_template(CloudFormationTemplate(template_dict, 'foo'))
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)
template_url = stack_config.template_url
working_dir = stack_config.working_dir
template = CloudFormationTemplateLoader.get_template_from_url(template_url, working_dir)
template = CloudFormationTemplateTransformer.transform_template(template)
parameters = self.parameter_resolver.resolve_parameter_values(stack_config.parameters, stack_name)
stack = CloudFormationStack(template, parameters, stack_name, self.region, stack_config.timeout)
if stack_name in existing_stacks:
self.cfn.validate_stack_is_ready_for_updates(stack_name)
self.cfn.update_stack(stack)
else:
self.cfn.create_stack(stack)
CustomResourceHandler.process_post_resources(stack)
def test_transform_template_transforms_join_with_embedded_ref(self):
template_dict = {
'key1': {"|join|.": ["|ref|foo", "b"]}
}
result = CloudFormationTemplateTransformer.transform_template(CloudFormationTemplate(template_dict, 'foo'))
expected = {'key1': {'Fn::Join': ['.', [{'Ref': 'foo'}, 'b']]}}
self.assertEqual(expected, result.body_dict)
def test_transform_template_transforms_dict_list_items(self):
template_dict = {
'key1': {'key2': [{'key3': 'value3', 'foo': {'|Join|': ['a', 'b']}}]}
}
result = CloudFormationTemplateTransformer.transform_template(CloudFormationTemplate(template_dict, 'foo'))
expected = {'key1': {'key2': [{'foo': {'Fn::Join': ['', ['a', 'b']]}, 'key3': 'value3'}]}}
self.assertEqual(expected, result.body_dict)
def test_transform_template_transforms_list_values(self):
template_dict = {
'key1': ["|ref|foo", "a", "b"]
}
result = CloudFormationTemplateTransformer.transform_template(CloudFormationTemplate(template_dict, 'foo'))
expected = {'key1': [{'Ref': 'foo'}, 'a', 'b']}
self.assertEqual(expected, result.body_dict)
def test_transform_template_properly_renders_dict(self):
template_dict = {
'key1': '|ref|value',
'key2': '|getatt|resource|attribute',
'@TaupageUserData@':
{
'key1': 'value',
'key2': {'ref': 'value'},
'key3': {'|join|.': ['a', 'b', 'c']}
}
}
result = CloudFormationTemplateTransformer.transform_template(CloudFormationTemplate(template_dict, 'foo'))
expected = {
"key1": {
"Ref": "value"
},
"key2": {
"Fn::GetAtt": [
"resource",
"attribute"
]
},
"UserData": {
"Fn::Base64": {
"Fn::Join": [
"\n",
[
"#taupage-ami-config",
{
"Fn::Join": [
": ",
[
"key1",
"value"
]
]
},
{
"Fn::Join": [
": ",
[
"key2",
{
"ref": "value"
}
]
]
},
{
"Fn::Join": [
": ",
[
"key3",
{
"Fn::Join": [
".",
[
"a",
"b",
"c"
]
]
}
]
]
}
]
]
}
}
}
self.assertEqual(expected, result.body_dict)
