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Correctly generate resource name for target groups when using cloudformation

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They need to have less than 32 character names, so when you don't specify a name
cloudformation generates a name that is less than 32 characters.

And make sure that flake8 passes
This commit is contained in:
William Richard 2018-04-11 18:16:56 -04:00
commit 81381cd035
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3 changed files with 133 additions and 13 deletions
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24
moto/cloudformation/parsing.py
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@ -96,6 +96,7 @@ NAME_TYPE_MAP = {
"AWS::ElasticBeanstalk::Application": "ApplicationName",
"AWS::ElasticBeanstalk::Environment": "EnvironmentName",
"AWS::ElasticLoadBalancing::LoadBalancer": "LoadBalancerName",
"AWS::ElasticLoadBalancingV2::TargetGroup": "Name",
"AWS::RDS::DBInstance": "DBInstanceIdentifier",
"AWS::S3::Bucket": "BucketName",
"AWS::SNS::Topic": "TopicName",
@ -244,6 +245,18 @@ def resource_name_property_from_type(resource_type):
return NAME_TYPE_MAP.get(resource_type)
def generate_resource_name(resource_type, stack_name, logical_id):
if resource_type == "AWS::ElasticLoadBalancingV2::TargetGroup":
# Target group names need to be less than 32 characters, so when cloudformation creates a name for you
# it makes sure to stay under that limit
name_prefix = '{0}-{1}'.format(stack_name, logical_id)
my_random_suffix = random_suffix()
truncated_name_prefix = name_prefix[0:32 - (len(my_random_suffix) + 1)]
return '{0}-{1}'.format(truncated_name_prefix, my_random_suffix)
else:
return '{0}-{1}-{2}'.format(stack_name, logical_id, random_suffix())
def parse_resource(logical_id, resource_json, resources_map):
resource_type = resource_json['Type']
resource_class = resource_class_from_type(resource_type)
@ -258,15 +271,12 @@ def parse_resource(logical_id, resource_json, resources_map):
if 'Properties' not in resource_json:
resource_json['Properties'] = dict()
if resource_name_property not in resource_json['Properties']:
resource_json['Properties'][resource_name_property] = '{0}-{1}-{2}'.format(
resources_map.get('AWS::StackName'),
logical_id,
random_suffix())
resource_json['Properties'][resource_name_property] = generate_resource_name(
resource_type, resources_map.get('AWS::StackName'), logical_id)
resource_name = resource_json['Properties'][resource_name_property]
else:
resource_name = '{0}-{1}-{2}'.format(resources_map.get('AWS::StackName'),
logical_id,
random_suffix())
resource_name = generate_resource_name(resource_type, resources_map.get('AWS::StackName'), logical_id)
return resource_class, resource_json, resource_name