Ansible playbook to create a new user with a random available uid & gid

create_random_uid_user.yml

- name: Determine available groups
  getent:
    database: group

- name: Add additional groups to user
  user: name="{{user}}" groups="{{item}}" append=yes
  when: item in ansible_facts.getent_group
  with_items: 
      - sudo
      - wheel

---
- hosts: my_host
  become: true
  tasks:
    - name: determine available groups
      getent:
        database: group

    - name: determine available users
      getent:
        database: passwd

    - name: set group with gid 1900 when not available
      group:
        name: 
        gid: 1900
      when:
        - "'' not in ansible_facts.getent_group"
        - "'1900' not in item.value"
      loop: "{{ ansible_facts.getent_group | dict2items }}"

    - name: set group with gid 2020 when not available
      group:
        name: 
        gid: 2020
      when:
        - "'' not in ansible_facts.getent_group"
        - "'2020' not in item.value"
      loop: "{{ ansible_facts.getent_group | dict2items }}"

    - name: create random number
      set_fact:
        random_num: "{{ range(1500, 2000) | random(seed=item) }}"
      run_once: yes
      with_items:
        - string

    - name: set group with random gid when 2020 already in use
      group:
        name: 
        gid: "{{ random_num }}"
      when:
        - "'' not in ansible_facts.getent_group"
        - "'2020' in item.value"
      loop: "{{ ansible_facts.getent_group | dict2items }}"

    - name: set fact when  exists
      set_fact:
        user_exists: true
      when: '"" in item.key'
      loop: "{{ ansible_facts.getent_passwd | dict2items }}"

    - name: set fact when  does not exists
      set_fact:
        user_exists: false
      when: '"" not in item.key'
      loop: "{{ ansible_facts.getent_passwd | dict2items }}"

    - name: set user with uid 1900, and group  when not available
      user:
        name: 
        uid: 1900
        group: 
      when:
        - not user_exists
        - "'1900' not in item.value[1]"
      loop: "{{ ansible_facts.getent_passwd | dict2items }}"

    - name: set user with uid 2020, and group  when not available
      user:
        name: 
        uid: 2020
        group: 
      when:
        - not user_exists
        - "'2020' not in item.value[1]"
      loop: "{{ ansible_facts.getent_passwd | dict2items }}"

    - name: set user with random uid, and group  when not available
      user:
        name: 
        uid: "{{ random_num }}"
        group: 
      when:
        - not user_exists
        - "'2020' in item.value[1]"
      loop: "{{ ansible_facts.getent_passwd | dict2items }}"