deployment/roles/set-hostname/tasks/main.yml

---
- name: Check current hostname
  register: cur_hostname
  shell: hostname
  changed_when: false

- name: yeet
  debug:
    msg: "{{ cur_hostname }} - {{ hostname }}"

- name: Set hostname
  shell: "hostnamectl set-hostname {{ hostname }}"
  # hostname:
  #   name: "{{ hostname }}"
  #   use: debian
  notify: update hosts
  when: cur_hostname.stdout != hostname