---

- name: Ensure ansible_host is mapped to inventory_hostname
  lineinfile:
    path: /tmp/inventory.txt
    line: "{{ item }}@@@{{ hostvars[item].ansible_host }}@@@{{ hostvars[item].k3s_control_node }}"
    create: true
  loop: "{{ play_hosts }}"

- name: Lookup control node from file
  command: "grep 'True' /tmp/inventory.txt"
  changed_when: false
  register: k3s_control_delegate_raw

- name: Ensure control node is delegated to for obtaining a token
  set_fact:
    k3s_control_delegate: "{{ k3s_control_delegate_raw.stdout.split('@@@')[0] }}"

- name: Ensure the control node address is registered in Ansible
  set_fact:
    k3s_control_node_address: "{{ hostvars[k3s_control_delegate].ansible_host }}"

- name: Ensure NODE_TOKEN is captured from control node
  slurp:
    path: "/var/lib/rancher/k3s/server/node-token"
  register: k3s_control_token
  delegate_to: "{{ k3s_control_delegate }}"

- name: Ensure k3s service unit file is present
  template:
    src: k3s.service.j2
    dest: /etc/systemd/system/k3s.service
  notify:
    - reload systemctl
    - restart k3s

- meta: flush_handlers

- name: Wait for all nodes to be ready
  command: "{{ k3s_install_dir }}/kubectl get nodes"
  changed_when: false
  register: kubectl_get_nodes_result
  until: kubectl_get_nodes_result.stdout.find("NotReady") == -1
  retries: 30
  delay: 20
  when: k3s_control_node