module_defaults not working

[Punit Jain]

Hi,

I have a playbook which imports custom role and passes required attributes. My requirement is to pass only required attributes and role specify remaining. below is explained in detail.

playbook

------------

---
- hosts: remote
  gather_facts: yes
  tasks:
    - import_role: {name: xaas}
    - name: call action
      xaasaction:
        id: "{{id}}"
        action: "{{action}}"

      register: output

    - name: print values
      debug: var=output

the role task as below:

---
# tasks file for testrole
- xaasaction:
  module_defaults:
    xaasaction:
      username: "{{username}}"
      password: "{{password}}"

username and password are picked from vars/main.yml inside the role

The issue is module_defaults doesnot take effect.

output is

"invocation": {

      "module_args":

              "id": 12,

              "action": create,

              "username": null,

              "password": null

Any advice how to make it work so that module_defaults values are passed to the module along with other arguments?

Thanks and Regards,

Punit