---
  ## TODO: pin version
- name: install apt packages
  apt:
    name: prom-exporter-node
    state: present

- name: create directory for textfile collector
  file:
    path: /var/lib/prometheus-node-exporter/textfile-collector
    state: directory

- name: generate systemd service unit
  template:
    src: service.j2
    dest: /etc/systemd/system/prometheus-node-exporter.service
  notify: restart prometheus-node-exporter

- name: make sure prometheus-node-exporter is enabled and started
  systemd:
    name: prometheus-node-exporter.service
    daemon_reload: yes
    state: started
    enabled: yes

- name: register exporter
  copy:
    content: |
      method: http
      http:
        port: 9100
    dest: /etc/prometheus/exporter/exporter/node.yml
  notify: reload prometheus-exporter-exporter

- name: create directory for textfile collector scripts
  file:
    path: /usr/local/lib/prometheus-node-exporter
    state: directory

- name: install textfile collector script wrapper
  copy:
    content: |
      #!/bin/bash

      if [ -z "$1" ]; then
        echo "Please specify which collector script to call!"
        exit 1
      fi
      collector="$1"

      set -e
      rm -f "/var/lib/prometheus-node-exporter/textfile-collector/$collector.prom".*
      "/usr/local/lib/prometheus-node-exporter/$collector" > "/var/lib/prometheus-node-exporter/textfile-collector/$collector.prom.$$"
      mv "/var/lib/prometheus-node-exporter/textfile-collector/$collector.prom.$$" "/var/lib/prometheus-node-exporter/textfile-collector/$collector.prom"
    dest: /usr/local/lib/prometheus-node-exporter/run-collector
    mode: 0755

- name: install the apt textfile collector script
  when: ansible_pkg_mgr == "apt"
  vars:
    textfile_collector_name: "apt"
  include_tasks: textfile_collector_script.yml

- name: install all other textfile collector scripts
  loop: "{{ prometheus_exporter_node_textfile_collector_scripts }}"
  loop_control:
    loop_var: textfile_collector_name
  include_tasks: textfile_collector_script.yml