---
# Prometheus nginx exporter (optional, gated by nginx_exporter_enabled).
# Installs nginx-prometheus-exporter and exposes a loopback-only stub_status
# endpoint that the exporter scrapes.

- name: Install nginx-prometheus-exporter
  ansible.builtin.package:
    name: "{{ nginx_exporter_package }}"
    state: present

- name: Deploy nginx stub_status endpoint
  ansible.builtin.template:
    src: stub-status.conf.j2
    dest: "{{ nginx_conf_dir }}/99-stub-status.conf"
    owner: root
    group: root
    mode: "0644"
  notify: Reload nginx

- name: Flush handlers to reload nginx with stub_status
  ansible.builtin.meta: flush_handlers

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

- name: Enable and start nginx exporter
  ansible.builtin.systemd:
    name: "{{ nginx_exporter_service }}"
    enabled: true
    state: started
    daemon_reload: true