---
# Converges one node of the cluster: the same prep either way, then branch on
# which k3s role it plays. k3s_node_role is set per group, not per host — see
# inventory/group_vars/k3s_control_plane.yml (server) and k3s_workers.yml
# (agent) — so adding a fifth Pi later is a hosts.yml edit, not a role change.

- name: Validate k3s_node_role
  ansible.builtin.assert:
    that: k3s_node_role in ['server', 'agent']
    fail_msg: >-
      k3s_node_role is '{{ k3s_node_role }}'; expected 'server' or 'agent'.
      Check inventory/group_vars/k3s_control_plane.yml and k3s_workers.yml.
    quiet: true

- name: Prepare the node for k3s
  ansible.builtin.include_tasks: prep.yml

- name: Install the k3s server (control plane)
  ansible.builtin.include_tasks: server.yml
  when: k3s_node_role == 'server'

- name: Install the k3s agent (worker)
  ansible.builtin.include_tasks: agent.yml
  when: k3s_node_role == 'agent'