mysql_user: Allow to check for implicit_admin w/o any action

Copied from https://github.com/ansible-collections/community.general/issues/755 Initially reported by @Akasurde

From @MarcinOrlowski on May 04, 2017 15:06

ISSUE TYPE

Feature Idea

COMPONENT NAME

mysql_user

ANSIBLE VERSION

ansible 2.3.0.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/usr/share/ansible']
  python version = 2.7.9 (default, Jun 29 2016, 13:08:31) [GCC 4.9.2]

OS / ENVIRONMENT

N/A

SUMMARY

Would be useful to use mysql_user with just check_implicit_admin (no name given) which combined with register would just check for implicit admin access allowing further steps in role to rely on the result (i.e. skip certain actions).

STEPS TO REPRODUCE


- mysql_user:
      check_implicit_admin: yes
  register: check_result

- debug:
      var: check_result

EXPECTED RESULTS

ok: [pl_neo_sql] => {
    "changed": false,
    "implicit_admin": true
}

ACTUAL RESULTS

It actually fails as name is required.

Copied from original issue: ansible/ansible#24298

ansible-collections / community.mysql

mysql_user: Allow to check for implicit_admin w/o any action #15