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Heat::ResourceGroup [closed]

asked 2018-06-26 15:47:10 -0600

Erik Launay gravatar image

updated 2018-06-26 15:58:27 -0600

Hi

I have been using HEAT template to create 3 servers and it works just fine

Example:

  ALIS-MF-01:
    type: OS::Nova::Server
    properties:
      name: ALIS-MF-01
      …
       template: {get_file: alis-mf-script.sh }
          params:
            …
            $alis_mf_hostname: { get_param: alis_mf_01_hostname }
            ...

  ALIS-MF-02:
    type: OS::Nova::Server
    properties:
      name: ALIS-MF-02
      …
       template: {get_file: alis-mf-script.sh }
          params:
            …
            $alis_mf_hostname: { get_param: alis_mf_02_hostname }
            ...

  ALIS-MF-03:
    type: OS::Nova::Server
    properties:
      name: ALIS-MF-03
      …
       template: {get_file: alis-mf-script.sh }
          params:
            …
            $alis_mf_hostname: { get_param: alis_mf_03_hostname }
            ...

Which as I said works just fine. Note: alis_mf_01_hostname, alis_mf_02_hostname and alis_mf_03_hostname are provided by my environment file

Now I would like to use Heat::ResourceGroup

  alis_af_rg:
    type: OS::Heat::ResourceGroup
    properties:
      count: { get_param: alis_af_count }
      resource_def:
        type: aqsa_alis_af.yaml
        properties:
           …
          alis_mf_hostname: { get_param: alis_mf_hostname }

The question is, before using Nova:Server, I could distinct the hostname as I was creating 3 different instances (alis_mf_01_hostname, alis_mf_02_hostname and alis_mf_03_hostname)

How can I provide a different hostname using ResourceGroup?

Anybody please?

Just for the story: I already did my research here and couldn't any clue.

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Closed for the following reason the question is answered, right answer was accepted by Erik Launay
close date 2018-07-16 13:49:16.541525

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answered 2018-07-16 13:41:12 -0600

Erik Launay gravatar image

updated 2018-07-16 13:48:12 -0600

I figured out how to address this issue:

As an example from what I did:

  • In my environment file, I have:

        alis_mf_hostname_list: "alis-mf01,alis-mf02,alis-mf03"

  • In my heat template (the base template), I have:

        alis_mf_hostname_list:

    type: comma_delimited_list

    label: ALIS-MF-BB Hostname list

     description: ALIS-MF-BB Hostname list

    default: "alis-mf01,alis-mf02,alis-mf03"

Then 

        properties:

        flavor: { get_param: alis_mf_flavor }

        alis_mf_hostname_list: { get_param: alis_mf_hostname_list }

        id: "%index%"

  • In my heat template

        $alis_mf_hostname: { get_param: [alis_mf_hostname_list, get_param: id] }
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answered 2018-06-27 00:29:59 -0600

Bernd Bausch gravatar image

Resource groups have an index feature. Would that help your case?

This is the example from the documentation:

resources:
  my_indexed_group:
    type: OS::Heat::ResourceGroup
    properties:
      count: 3
      resource_def:
        type: OS::Nova::Server
        properties:
          # create a unique name for each server using its index in the group
          name: my_server_%index%
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Asked: 2018-06-26 15:47:10 -0600

Seen: 998 times

Last updated: Jul 16 '18

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