---

- name: add prometheus user to video group for rpi GPU stats
  become: yes
  user: name="prometheus" groups="video" append="yes"

- name: install prometheus rpi-exporter
  unarchive:
    src: "{{prometheus_client_rpi_src}}"
    remote_src: yes
    dest: "/tmp"
    creates: "/tmp/{{prometheus_client_rpi_dest}}"
  notify: restart rpi_exporter

- name: disable GPU temp scraping
  become: yes
  lineinfile:
    path: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter.service"
    regexp: "^ExecStart=/usr/local/bin/rpi_exporter"
    line: "ExecStart=/usr/local/bin/rpi_exporter --no-collector.gpu"
  when: not prometheus_client_rpi_collect_gpu_temp
  changed_when: false

- name: install systemd service for rpi-exporter
  become: yes
  copy:
    src: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter.service"
    remote_src: yes
    dest: "/lib/systemd/system/rpi_exporter.service"
  notify: restart rpi_exporter

- name: install rpi-exporter binary
  become: yes
  copy:
    src: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter"
    remote_src: yes
    dest: "/usr/local/bin/rpi_exporter"
    mode: "0755"
  notify: restart rpi_exporter

- name: ensure systemd service is started
  become: yes
  systemd: name="rpi_exporter.service" enabled="yes" state="started"