metadata:
 version: 3
 name: get_param(template_name)
 description: execute mistral
 type: standard
parameters:
 template_name:
  description: the name of the template
  default: v3_with_default_params
 alarm_name:
  default: alarm1
entities:
 alarm:
  name: get_param(alarm_name)
 host:
  type: nova.host
scenarios:
 - condition: alarm [on] host
   actions:
     - execute_mistral:
        workflow: workflow_1
        input:
         hostname: get_attr(host,name)
