---
- name: Verify primary Kubernetes API is reachable from {{ joining_master }}
  ansible.builtin.wait_for:
    host: "{{ hostvars[groups[group_name_master | default('master')][0]].k3s_node_ip | split(',') | first }}"
    port: 6443
    connect_timeout: 5
    timeout: "{{ retry_count | default(20) * 2 }}"
  delegate_to: "{{ joining_master }}"

- name: Join transient k3s-init service for {{ joining_master }}
  ansible.builtin.command:
    cmd: >-
      systemd-run -p RestartSec=2 -p Restart=on-failure --unit=k3s-init
      k3s server {{ joining_server_args }}
    creates: "{{ systemd_dir }}/k3s-init.service"
  delegate_to: "{{ joining_master }}"
  no_log: true
  vars:
    primary_master: "{{ groups[group_name_master | default('master')][0] }}"
    primary_master_api: >-
      {{ hostvars[primary_master].k3s_node_ip | split(',') | first | ansible.utils.ipwrap }}
    joining_server_args: >-
      {{ hostvars[joining_master].server_init_args | default('--server https://' +
      primary_master_api + ':6443 --token ' +
      (hostvars[joining_master].k3s_token | default(k3s_token)) + ' ' +
      (hostvars[joining_master].extra_server_args | default(''))) }}

- name: Wait for primary registration of {{ joining_master }}
  ansible.builtin.command:
    cmd: >-
      {{ k3s_kubectl_binary | default('k3s kubectl') }} get node {{ joining_master }}
  delegate_to: "{{ groups[group_name_master | default('master')][0] }}"
  register: joined_master
  until: joined_master.rc == 0
  retries: "{{ retry_count | default(20) }}"
  delay: 2
  changed_when: false