Open Stack

Hi ,
   I have tried the below .But getting error .Please let me know how I can proceed further .

root at cic-1:~# cat try1.yaml 
heat_template_version: 2013-05-23
description:
  This is the template for I&V R6.1 base configuration to create neutron  resources other than sg and vm for vyos vms
parameters:
  resource_name_map:
    - network1: NetworkA1
      network2: NetworkA2
    - network1: NetworkB1
      network2: NetworkB2

resources:
  neutron_Network_1:
    type: OS::Neutron::Net
    properties:
      name: {get_param: [resource_name_map, %index%, network1]}
  neutron_Network_2:
    type: OS::Neutron::Net
    properties:
      name: {get_param: [resource_name_map, %index%, network2]}
root at cic-1:~# cat tryrepeat.yaml 

heat_template_version: 2013-05-23

resources:
  rg:
    type: OS::Heat::ResourceGroup
    properties:
      count: 2
      resource_def: 
        type: try1.yaml
root at cic-1:~#

root at cic-1:~# heat stack-create tests -f tryrepeat.yaml 
WARNING (shell) "heat stack-create" is deprecated, please use "openstack stack create" instead
ERROR: resources.rg<nested_stack>: : Error parsing template file:///root/try1.yaml while scanning for the next token
found character '%' that cannot start any token
  in "<unicode string>", line 15, column 45:
     ... {get_param: [resource_name_map, %index%, network1]}



    Thanks in advance .


Thanks,
A.Nanthini
-----Original Message-----
From: Harald Jensås [mailto:hjensas at redhat.com] 
Sent: Monday, February 11, 2019 7:47 PM
To: NANTHINI A A <nanthini.a.a at ericsson.com>; openstack-dev at lists.openstack.org
Subject: Re: [Heat] Reg accessing variables of resource group heat api

On Wed, 2019-02-06 at 06:12 +0000, NANTHINI A A wrote:
> Hi ,
>     We are developing heat templates for our vnf deployment .It 
> includes multiple resources .We want to repeat the resource and hence 
> used the api RESOURCE GROUP .
>     Attached are the templates which we used
>  
> Set1.yaml -> has the resources we want to repeat Setrepeat.yaml -> has 
> the resource group api with count .
>   
>      We want to access the variables of resource in set1.yaml while 
> repeating it with count .Eg . port name ,port fixed ip address we want 
> to change in each set .
>    Please let us know how we can have a variable with each repeated 
> resource .
>  

Sounds like you want to use the index_var variable[1] to prefix/suffix reource names?

 I.e in set1.yaml you can use:

   name: 
    list_join:
      - '_'
      - {get_param: 'OS::stack_name'}
      - %index%
      - <resource_name>


The example should resulting in something like:
  stack_0_Network3, stack_0_Subnet3
  stack_1_Network0, stack_1_Subnet0
  [ ... ]


If you want to be more advanced you could use a list parameter in the set1.yaml template, and have each list entry contain a dictionaly of each resource name. The %index% variable would then be used to pick the correct entry from the list.


parameters:
  resource_name_map:
    - network1: foo_custom_name_net1
      network2: foo_custom_name_net2
    - network1: bar_custom_name_net1
      network2: bar_custom_name_net2    - 

resources:
  neutron_Network_1:
    type: OS::Neutron::Net
    properties:
      name: {get_param: [resource_name_map, %index%, network1]}
  neutron_Network_2:
    type: OS::Neutron::Net
    properties:
      name: {get_param: [resource_name_map, %index%, network2]}


 %index% is the "count" picking the 'foo' entries when %index% is 0, and 'bar' entries when %index% is 1 and so on.





[1]
https://docs.openstack.org/heat/latest/template_guide/openstack.html#OS::Heat::ResourceGroup-props-opt