Heat template with sleep

gistfile1.txt

heat_template_version: 2014-10-16

description: |
  Cloud init with a sleep
  
resources:
  instance1:
    type: OS::Nova::Server
    properties:
      image: 4b14a92e-84c8-4770-9245-91ecb8501cc2  # CentOS
      flavor: 1 GB Performance
      config_drive: True
      user_data_format: RAW
      user_data: |
        #!/bin/bash
        sleep 600