homeserver/roles/mgrote_gitea_setup/tasks/admin.yml

---
# die Variablen kommen aus
# - https://docs.gitea.com/administration/command-line
# - https://github.com/lldap/lldap/blob/main/example_configs/gitea.md
# und
# den jeweiligen group/host-Vars!

- name: Check if Admin-User exists
  no_log: "{{ no_debug | default('true') }}"
  become_user: gitea
  become: true
  ansible.builtin.command: |
    forgejo admin user list \
      --config "{{ gitea_configuration_path }}/gitea.ini"
  register: check
  changed_when: false

- name: Ensure Admin-User exists # noqa no-changed-when no-jinja-when
  no_log: "{{ no_debug | default('true') }}"
  become_user: gitea
  become: true
  ansible.builtin.command: |
    forgejo admin user create \
      --config "{{ gitea_configuration_path }}/gitea.ini" \
      --username "{{ gitea_admin_user }}" \
      --password "{{ gitea_admin_user_pass }}" \
      --email "{{ gitea_admin_user }}@mgrote.net" \
      --admin
  when: 'not "{{ gitea_admin_user }}@mgrote.net" in check.stdout'

- name: Show existing users
  ansible.builtin.debug:
    msg: "{{ check.stdout_lines }}"
...