---
- name: Install Blackbox Exporter
  ansible.builtin.apt:
    name:
      - curl
      - prometheus-blackbox-exporter
    state: present
    update_cache: true

- name: Install external probe configuration
  ansible.builtin.template:
    src: blackbox.yml.j2
    dest: /etc/prometheus/blackbox.yml
    owner: root
    group: root
    mode: "0644"
  notify: restart blackbox exporter

- name: Create Blackbox Exporter systemd override directory
  ansible.builtin.file:
    path: /etc/systemd/system/prometheus-blackbox-exporter.service.d
    state: directory
    owner: root
    group: root
    mode: "0755"

- name: Configure Blackbox Exporter listen address
  ansible.builtin.copy:
    dest: /etc/systemd/system/prometheus-blackbox-exporter.service.d/override.conf
    owner: root
    group: root
    mode: "0644"
    content: |
      [Service]
      ExecStart=
      ExecStart=/usr/bin/prometheus-blackbox-exporter --config.file=/etc/prometheus/blackbox.yml --web.listen-address={{ monitoring_blackbox_listen_address }}
  notify:
    - reload systemd
    - restart blackbox exporter

- name: Install ru-vps metrics push script
  ansible.builtin.template:
    src: push-metrics.sh.j2
    dest: /usr/local/sbin/homelab-monitoring-push
    owner: root
    group: root
    mode: "0755"

- name: Install ru-vps metrics push service
  ansible.builtin.copy:
    dest: /etc/systemd/system/homelab-monitoring-push.service
    owner: root
    group: root
    mode: "0644"
    content: |
      [Unit]
      Description=Push ru-vps monitoring metrics through OpenVPN
      Wants=network-online.target
      After=network-online.target

      [Service]
      Type=oneshot
      ExecStart=/usr/local/sbin/homelab-monitoring-push
  notify: reload systemd

- name: Install ru-vps metrics push timer
  ansible.builtin.copy:
    dest: /etc/systemd/system/homelab-monitoring-push.timer
    owner: root
    group: root
    mode: "0644"
    content: |
      [Unit]
      Description=Run ru-vps monitoring metric push every minute

      [Timer]
      OnBootSec=2m
      OnUnitActiveSec=1m
      Persistent=true

      [Install]
      WantedBy=timers.target
  notify: reload systemd

- name: Ensure Blackbox Exporter is enabled and running
  ansible.builtin.systemd:
    name: prometheus-blackbox-exporter
    enabled: true
    state: started

- name: Enable ru-vps metrics push timer
  ansible.builtin.systemd:
    name: homelab-monitoring-push.timer
    daemon_reload: true
    enabled: true
    state: started