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Add support for Cloudformation Mappings.

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This commit is contained in:
Steve Pulec 2015-01-07 22:32:51 -05:00
commit e05a061993
2 changed files with 65 additions and 8 deletions
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28
moto/cloudformation/parsing.py
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@ -73,6 +73,14 @@ def clean_json(resource_json, resources_map):
else:
return resource
if "Fn::FindInMap" in resource_json:
map_name = resource_json["Fn::FindInMap"][0]
map_path = resource_json["Fn::FindInMap"][1:]
result = resources_map[map_name]
for path in map_path:
result = result[clean_json(path, resources_map)]
return result
if 'Fn::GetAtt' in resource_json:
resource = resources_map[resource_json['Fn::GetAtt'][0]]
if resource is None:
@ -88,13 +96,6 @@ def clean_json(resource_json, resources_map):
UnformattedGetAttTemplateException.description.format(
resource_json['Fn::GetAtt'][0], resource_json['Fn::GetAtt'][1]))
if 'Fn::Join' in resource_json:
join_list = []
for val in resource_json['Fn::Join'][1]:
cleaned_val = clean_json(val, resources_map)
join_list.append(cleaned_val if cleaned_val else '{0}'.format(val))
return resource_json['Fn::Join'][0].join(join_list)
if 'Fn::If' in resource_json:
condition_name, true_value, false_value = resource_json['Fn::If']
if resources_map[condition_name]:
@ -102,6 +103,13 @@ def clean_json(resource_json, resources_map):
else:
return false_value
if 'Fn::Join' in resource_json:
join_list = []
for val in resource_json['Fn::Join'][1]:
cleaned_val = clean_json(val, resources_map)
join_list.append(cleaned_val if cleaned_val else '{0}'.format(val))
return resource_json['Fn::Join'][0].join(join_list)
cleaned_json = {}
for key, value in resource_json.items():
cleaned_json[key] = clean_json(value, resources_map)
@ -216,7 +224,7 @@ class ResourceMap(collections.Mapping):
# Create the default resources
self._parsed_resources = {
"AWS::AccountId": "123456789012",
"AWS::Region": "us-east-1",
"AWS::Region": self._region_name,
"AWS::StackId": stack_id,
"AWS::StackName": stack_name,
}
@ -242,6 +250,9 @@ class ResourceMap(collections.Mapping):
def resources(self):
return self._resource_json_map.keys()
def load_mapping(self):
self._parsed_resources.update(self._template.get('Mappings', {}))
def load_parameters(self):
parameter_slots = self._template.get('Parameters', {})
for parameter_name, parameter in parameter_slots.items():
@ -267,6 +278,7 @@ class ResourceMap(collections.Mapping):
self._parsed_resources[condition_name] = parse_condition(condition, self._parsed_resources)
def create(self):
self.load_mapping()
self.load_parameters()
self.load_conditions()