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#2255 - CF - Implement FN::Transform and AWS::Include

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This commit is contained in:
Bert Blommers 2020-03-18 13:02:07 +00:00
commit cbf0397953
5 changed files with 82 additions and 8 deletions
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21
moto/cloudformation/parsing.py
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@ -1,5 +1,6 @@
from __future__ import unicode_literals
import functools
import json
import logging
import copy
import warnings
@ -24,7 +25,8 @@ from moto.rds import models as rds_models
from moto.rds2 import models as rds2_models
from moto.redshift import models as redshift_models
from moto.route53 import models as route53_models
from moto.s3 import models as s3_models
from moto.s3 import models as s3_models, s3_backend
from moto.s3.utils import bucket_and_name_from_url
from moto.sns import models as sns_models
from moto.sqs import models as sqs_models
from moto.core import ACCOUNT_ID
@ -150,7 +152,10 @@ def clean_json(resource_json, resources_map):
map_path = resource_json["Fn::FindInMap"][1:]
result = resources_map[map_name]
for path in map_path:
result = result[clean_json(path, resources_map)]
if "Fn::Transform" in result:
result = resources_map[clean_json(path, resources_map)]
else:
result = result[clean_json(path, resources_map)]
return result
if "Fn::GetAtt" in resource_json:
@ -470,6 +475,17 @@ class ResourceMap(collections_abc.Mapping):
def load_mapping(self):
self._parsed_resources.update(self._template.get("Mappings", {}))
def transform_mapping(self):
for k, v in self._template.get("Mappings", {}).items():
if "Fn::Transform" in v:
name = v["Fn::Transform"]["Name"]
params = v["Fn::Transform"]["Parameters"]
if name == "AWS::Include":
location = params["Location"]
bucket_name, name = bucket_and_name_from_url(location)
key = s3_backend.get_key(bucket_name, name)
self._parsed_resources.update(json.loads(key.value))
def load_parameters(self):
parameter_slots = self._template.get("Parameters", {})
for parameter_name, parameter in parameter_slots.items():
@ -515,6 +531,7 @@ class ResourceMap(collections_abc.Mapping):
def create(self):
self.load_mapping()
self.transform_mapping()
self.load_parameters()
self.load_conditions()