---
# Prometheus unbound exporter (optional, gated by unbound_exporter_enabled).
# Scrapes unbound-control stats_noreset over the local control interface.

- name: Assert exporter is supported (Arch Linux only)
  ansible.builtin.assert:
    that: ansible_facts['os_family'] == 'Archlinux'
    fail_msg: |
      The unbound exporter (prometheus-unbound-exporter) is only packaged for
      Arch Linux. It is not available in Debian/Ubuntu repositories.
    success_msg: "Unbound exporter supported"

- name: Load OS-specific exporter variables
  ansible.builtin.include_vars: archlinux.yml

- name: Install prometheus-unbound-exporter
  ansible.builtin.package:
    name: "{{ unbound_exporter_package }}"
    state: present

- name: Deploy exporter environment file
  ansible.builtin.template:
    src: exporter-env.conf.j2
    dest: "{{ unbound_exporter_args_file }}"
    owner: root
    group: root
    mode: "0644"
  notify: Restart unbound exporter

- name: Enable and start prometheus-unbound-exporter
  ansible.builtin.systemd:
    name: "{{ unbound_exporter_service }}"
    enabled: true
    state: started
    daemon_reload: true