- name: Setup Prometheus User
  user:
    name: "{{prometheus_user}}"
    home: "{{prometheus_home_dir}}"
    state: present
- set_fact: "prometheus_extract_dir=prometheus-{{prometheus_version}}.{{prometheus_os}}-{{prometheus_architecture}}"
- name: Create configuration directory
  file:
    state: directory
    dest: "{{prometheus_home_dir}}/conf"
    mode: '0700'
    owner: "{{prometheus_user}}"
- name: Create Data directory
  file:
    state: directory
    dest: "{{prometheus_data_dir}}"
    mode: '0700'
    owner: "{{prometheus_user}}"
- name: Download Prometheus
  get_url:
    url: "{{prometheus_url}}"
    dest: "{{prometheus_home_dir}}/prometheus-{{prometheus_version}}.tgz"
    mode: '0600'
    owner: "{{prometheus_user}}"
# There's a bug  in become_user that doesn't set permissions on the temp directory
# which is asinine when my user has sudo persmissions.
- name: Extract Prometheus
  shell: |
    if ! [ -e "{{prometheus_home_dir}}/{{prometheus_extract_dir}}" ] ; then
      sudo su - '{{prometheus_user}}' -c 'tar xzf prometheus-{{prometheus_version}}.tgz'
    fi
  changed_when: false
- name: Link prometheus directory
  file:
    state: link
    src: '{{prometheus_extract_dir}}'
    dest: '{{prometheus_home_dir}}/prometheus'
    force: yes
- name: Link configuration files
  file:
    state: link
    src: '../conf/{{item}}'
    dest: '{{prometheus_home_dir}}/prometheus/{{item}}'
    force: yes
  loop:
    - prometheus.yml
- name: Write prometheus template
  template:
    src: prometheus/prometheus.yml
    dest: '{{prometheus_home_dir}}/conf/prometheus.yml'
    owner: '{{prometheus_user}}'
    mode: '0600'
- name: Write Systemd Unite
  template:
    src: prometheus/systemd.unit
    dest: /etc/systemd/system/prometheus.service
  when: ansible_facts['distribution'].lower() == "ubuntu"
- name: 'Enable Prometheus [Ubuntu]'
  systemd:
    enabled: yes
    daemon_reload: yes
    name: prometheus
  when: ansible_facts['distribution'].lower() == "ubuntu"
- name: Create Runit Directory
  file:
    state: directory
    dest: /etc/sv.local/prometheus
    owner: root
    group: adm
    mode: '0755'
  when: ansible_facts['distribution'].lower() == "void"
- name: Write runit service
  template:
    src: prometheus/runit/run
    dest: /etc/sv.local/prometheus/run
    owner: root
    group: adm
    mode: '0755'
  when: ansible_facts['distribution'].lower() == "void"
- name: Enable Runit service
  file:
    state: link
    src: /etc/sv.local/prometheus
    dest: /var/service/prometheus
  when: ansible_facts['distribution'].lower() == "void"