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olsaki/get_cfn_resources_by_stack_with_param.py

Created August 17, 2016 12:00
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Get CloudFormation resources mapping from a stack with a specific parameter
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get_cfn_resources_by_stack_with_param.py
import boto3
{ resource['LogicalResourceId']: resource['PhysicalResourceId'] for resource in boto3.client('cloudformation').describe_stack_resources(StackName=[ s[0] for s in [ (stack['StackName'], { parameter['ParameterKey']: parameter['ParameterValue'] for parameter in stack['Parameters'] } ) for stack in boto3.client('cloudformation').describe_stacks()['Stacks'] ] if 'MyParam' in s[1] and s[1]['MyParam'] == 'MyValue' ][0])['StackResources'] }
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