cloud/elasticache: Ensure self.data is iterable

- self.data['SecurityGroups'] can return None causing traceback, if that
  is the case fallback to an empty list
pull/6965/head
Michael J. Schultz 11 years ago
parent b0556ab1fb
commit db92301b00

@ -395,7 +395,8 @@ class ElastiCacheManager(object):
# check vpc security groups
vpc_security_groups = []
for sg in self.data['SecurityGroups']:
security_groups = self.data['SecurityGroups'] or []
for sg in security_groups:
vpc_security_groups.append(sg['SecurityGroupId'])
if set(vpc_security_groups) - set(self.security_group_ids):
return True

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