ansible-role-k3s/tasks/build/preconfigure-k3s.yml

---

- name: Ensure k3s control node fact is set
  set_fact:
    k3s_control_node: "{{ 'false' if k3s_build_cluster else 'true' }}"
  when: k3s_control_node is not defined

- name: Ensure k3s master control node fact is set
  set_fact:
    k3s_primary_control_node: "{{ 'false' if k3s_build_cluster else 'true' }}"
  when: k3s_primary_control_node is not defined

- name: Ensure a k3s control node is defined if none are found in play_hosts
  block:
    - name: Set the control host
      set_fact:
        k3s_control_node: true
      when: inventory_hostname == play_hosts[0]
  when: true not in (hostvars | json_query('*.k3s_control_node'))
        and k3s_build_cluster is defined and k3s_build_cluster

- name: Ensure a count of control masters is generated
  set_fact:
    k3s_controller_count: "{{ k3s_controller_count + [ item ] }}"
  when: hostvars[item].k3s_control_node
  loop: "{{ play_hosts }}"

- name: Ensure a primary k3s control node is defined if multiple are found in play_hosts
  set_fact:
    k3s_primary_control_node: true
  when: k3s_controller_count | length > 1
        and inventory_hostname == k3s_controller_count[0]
        and k3s_build_cluster is defined and k3s_build_cluster