---
- name: Install prometheus-node-exporter
  ansible.builtin.apt:
    name:
      - prometheus-node-exporter
      - prometheus-node-exporter-collectors
    install_recommends: false  # Do not install smartmontools

- name: Configure prometheus-node-exporter
  ansible.builtin.template:
    src: default.j2
    dest: /etc/default/prometheus-node-exporter
    owner: root
    group: root
    mode: u=rw,g=r,o=r
  notify:
    - Restart prometheus-node-exporter

- name: Install smartmontools
  ansible.builtin.apt:
    name: smartmontools
  when:
    - "prometheus__smart_enabled"

- name: Disable SMART monitoring
  block:
    - name: Get unit info for smartmon timer
      command: systemctl list-unit-files --output=json prometheus-node-exporter-smartmon.timer
      register: unit

    - name: Disable prometheus-node-exporter-smartmon.timer
      ansible.builtin.systemd_service:
        name: prometheus-node-exporter-smartmon.timer
        enabled: false
        state: stopped
      when: "unit.stdout | from_json | count > 0"

    - name: Remove smartmon.prom
      ansible.builtin.file:
        path: /var/lib/prometheus/node-exporter/smartmon.prom
        state: absent
  when:
    - "not prometheus__smart_enabled"

- name: Create override directory
  ansible.builtin.file:
    path: /etc/systemd/system/prometheus-node-exporter.service.d
    state: directory
    owner: root
    group: root
    mode: u=rwx,g=rx,o=rx

- name: Override prometheus-node-exporter.service
  ansible.builtin.template:
    src: override.conf.j2
    dest: /etc/systemd/system/prometheus-node-exporter.service.d/override.conf
    owner: root
    group: root
    mode: u=rw,g=r,o=r
  notify:
    - Run daemon-reload
    - Restart prometheus-node-exporter

- name: Enable prometheus-node-exporter
  ansible.builtin.systemd_service:
    name: prometheus-node-exporter
    enabled: true
    state: started
...