---
- name: Update k3s config and restart service on all nodes
  hosts: k3s
  become: true
  serial: 1

  pre_tasks:
    - name: Detect network interface for ansible_host
      ansible.builtin.shell: |
        set -o pipefail
        ip route get {{ ansible_host }} | grep -oP 'dev \K\w+' | head -1
      register: detected_iface
      changed_when: false
      failed_when: false

    - name: Set fact for node interface
      ansible.builtin.set_fact:
        k3s_node_iface: "{{ detected_iface.stdout | default('') }}"
      when: detected_iface.rc == 0 and detected_iface.stdout | length > 0

  tasks:
    - name: Deploy k3s config.yaml
      ansible.builtin.template:
        src: templates/config.yaml
        dest: /etc/rancher/k3s/config.yaml
        owner: root
        group: root
        mode: "0600"
      notify: Restart k3s

  handlers:
    - name: Restart k3s
      ansible.builtin.shell: |
        sleep 2 && systemctl daemon-reload && systemctl restart k3s
      async: 60
      poll: 0

    - name: Wait for k3s to come back
      ansible.builtin.wait_for_connection:
        delay: 15
        timeout: 120
      listen: Restart k3s