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heat_template_version: 2014-10-16

description: >
  Example extra config for cluster config
  this example deploys a random string to all controller and compute
  nodes, showing how data may be shared amongst nodes, vs the
  other ExtraConfig interfaces which act only on individual nodes.

# Parameters passed from the parent template - note if you maintain
# out-of-tree templates they may require additional parameters if the
# in-tree templates add a new role.
parameters:
  servers:
    type: json
# Note extra parameters can be defined, then passed data via the
# environment parameter_defaults, without modifying the parent template

resources:

  Random:
    type: OS::Heat::RandomString

  RandomConfig:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      inputs:
      - name: random_value
      config: |
        #!/bin/sh
        echo $random_value > /root/random_value

  RandomDeploymentsController:
    type: OS::Heat::SoftwareDeployments
    properties:
      name: RandomDeploymentsController
      servers:  {get_param: servers, Controller}
      config: {get_resource: RandomConfig}
      actions: ['CREATE'] # Only do this on CREATE
      input_values:
        random_value: {get_attr: [Random, value]}

  RandomDeploymentsCompute:
    type: OS::Heat::SoftwareDeployments
    properties:
      name: RandomDeploymentsCompute
      servers:  {get_param: servers, Compute}
      config: {get_resource: RandomConfig}
      actions: ['CREATE'] # Only do this on CREATE
      input_values:
        random_value: {get_attr: [Random, value]}