---
- name: Install and start k3s on a single host
  hosts: k3s_hosts
  gather_facts: false
  become: true
  serial: 1

  pre_tasks:
    - name: Require a single host target
      ansible.builtin.assert:
        that:
          - ansible_play_hosts_all | length == 1
        fail_msg: "This playbook targets one host. Use --limit <host>."

    - name: Gather minimal facts
      ansible.builtin.setup:
        gather_subset:
          - min

  tasks:
    - name: Install and start k3s
      ansible.builtin.import_role:
        name: k3s
        tasks_from: install