Delegation in Action Plugins

[Arti]

There is surprisingly (and sometime frustratingly) little documentation on Ansible action_plugins. I am trying to write an action plugin for a module that uses delegation. Is there a way to accomplish this? Would greatly appreciate any input

This is an example of a module I have:-

- name: "create database user"

    db_user:

      host: "{{ groups['servers'].0 }}"

      user: "{{ root_user }}"

      password: "{{ root_password }}"

   delegate_to: "{{ groups['servers'].0 }}"

And my action plugin is:-

class ActionModule(object):

    def __init__(self, runner):

        self.runner = runner

    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):

        parsed_args = parse_kv(module_args)

        options = {

            key: parsed_args.get(key) for key in ["host", "user", "password"]

        }    

        args = " ".join(

            "{}='{}'".format(key, value) for key, value in options.items()

        )

        return self.runner._execute_module( conn, tmp, 'db_user', args, inject=inject,)

Thanks