---
- name: Configure K3s Infrastructure
  hosts: localhost
  connection: local
  become: true

  vars:
    node_role: >-
      {{
        lookup('file', '/etc/node-role', errors='ignore')
        | default('undefined')
      }}

  pre_tasks:
    - name: Display node information
      debug:
        msg: "Configuring node {{ ansible_hostname }} with role {{ node_role }}"

    - name: Validate node role
      assert:
        that:
          - node_role in ['server', 'witness']
        fail_msg: >-
          Invalid node role: {{ node_role }}.
          Expected 'server' or 'witness'

    - name: Update apt cache
      apt:
        update_cache: true
        cache_valid_time: 3600

  roles:
    - role: common

    - role: k3s-server
      when: node_role == 'server'

    - role: etcd-witness
      when: node_role == 'witness'

  post_tasks:
    - name: Display completion message
      debug:
        msg: >-
          Configuration complete for
          {{ ansible_hostname }} ({{ node_role }})