guide/blueprints/workflow/examples/aws-cfn-stacks/aws-discoverer.yaml

name: AWS CloudFormation Discoverer

services:
  - type: workflow-software-process
    location: localhost
    name: Stacks

    brooklyn.policies:
      - type: workflow-policy
        brooklyn.config:
          name: periodically update children
          period: 1m
          steps:
            - ssh aws cloudformation describe-stacks
            - transform stdout | json | set describe_stacks_output_json
            - update-children type aws-cfn-discovered-stack-sample id ${item.StackId} from ${describe_stacks_output_json.Stacks}