---
- name: Ensure /opt/k3s directory exists
  ansible.builtin.file:
    path: /opt/k3s
    state: directory
    mode: '0755'

- name: Check if k3s installer script already exists
  ansible.builtin.stat:
    path: /opt/k3s/install_k3s.sh
  register: k3s_installer_script

- name: Download k3s installer if not already present
  ansible.builtin.get_url:
    url: https://get.k3s.io
    dest: /opt/k3s/install_k3s.sh
    mode: '0755'
  when: not k3s_installer_script.stat.exists

- name: Check if k3s is already installed (master)
  ansible.builtin.stat:
    path: /var/lib/rancher/k3s/server/node-token
  register: k3s_installed

- name: Install k3s server if not already installed
  ansible.builtin.command: /opt/k3s/install_k3s.sh server --cluster-init
  become: true
  when: not k3s_installed.stat.exists

- name: Retrieve k3s token
  ansible.builtin.slurp:
    path: /var/lib/rancher/k3s/server/node-token
  register: k3s_token_file
  when: not k3s_installed.stat.exists

- name: Set k3s token as a fact, for workers
  ansible.builtin.set_fact:
    k3s_token: "{{ k3s_token_file.content | b64decode }}"
  when: k3s_token_file is defined and k3s_token_file.content is defined
...