- name: UFW - Allow connections to exporter for prometheus
  ufw:
    rule: allow
    port: "9187"

- name: create directories - systemd unit
  file:
    state: directory
    path: /etc/systemd/system/postgres_exporter.service.d
    owner: root
    mode: '0700'
  become: yes

- name: create directories - service files
  file:
    state: directory
    path: /opt/postgres_exporter
    owner: postgres
    group: postgres
    mode: '0775'
  become: yes

- name: download postgres exporter
  get_url:
    url: "https://github.com/prometheus-community/postgres_exporter/releases/download/v{{ postgres_exporter_release }}/postgres_exporter-{{ postgres_exporter_release }}.linux-{{ platform }}.tar.gz"
    dest: /tmp/postgres_exporter.tar.gz
    checksum: "{{ postgres_exporter_release_checksum[platform] }}"
    timeout: 60

- name: expand postgres exporter
  unarchive:
    remote_src: yes
    src: /tmp/postgres_exporter.tar.gz
    dest: /opt/postgres_exporter
    extra_opts: [--strip-components=1]
  become: yes

- name: exporter create a service
  template:
    src: files/postgres_exporter.service.j2
    dest: /etc/systemd/system/postgres_exporter.service

- name: exporter ensure service is present
  systemd:
    enabled: no
    name: postgres_exporter
    daemon_reload: yes
    state: stopped