Resource Group nested stacks do not have index_var substituted

[Chris Buccella]

To recreate:

aserver.yaml:
    heat_template_version: 2015-04-30

    resources:
      instance:
        type: OS::Nova::Server
        properties:
          name: my_server_%index%
          image: cirros
          flavor: m1.tiny

recreate.yaml:
    heat_template_version: 2015-04-30

    resources:
      rg:
        type: OS::Heat::ResourceGroup
        properties:
          count: 3
          resource_def: {type: aserver.yaml}

Creating a stack using recreate.yaml results in 3 servers all named "my_sever_%index%".

This might be the same cause of #1470614; not sure

[Steve Baker (steve-stevebaker)]

I don't think it is expected for index_var substitutions happening inside the template resource, only in the resource group itself. So you should do something like:

aserver.yaml:
    heat_template_version: 2015-04-30
    parameters:
      server_name:
        type: string

    resources:
      instance:
        type: OS::Nova::Server
        properties:
          name: {get_param: server_name}
          image: cirros
          flavor: m1.tiny

recreate.yaml:
    heat_template_version: 2015-04-30

    resources:
      rg:
        type: OS::Heat::ResourceGroup
        properties:
          count: 3
          resource_def:
            type: aserver.yaml
            properties:
              server_name: my_server_%index%

[Chris Buccella (chris-buccella)]

Works for me. Thanks for the quick response.