- name: install prometheus
  apt:
    pkg: prometheus

- name: update prometheus user
  user:
    name: prometheus
    groups: ssl-cert
    append: yes

- name: create ssl certificate folder
  file:
    dest: /etc/prometheus/targetcerts/
    owner: root
    group: root
    mode: 0755
    state: directory

- name: create config folders
  file:
    dest: "{{ item }}"
    owner: root
    group: root
    mode: 0755
    state: directory
  loop:
    - /etc/prometheus/conf.d
    - /etc/prometheus/conf.d/scrape_configs
    - /etc/prometheus/conf.d/rule_files
    - /etc/prometheus/conf.d/alerting

- name: wrtie prometheus config
  notify: restart prometheus
  template:
    src: prometheus.j2
    dest: /etc/default/prometheus

- name: wrtie prometheus (base) config
  notify: regenerate prometheus config
  copy:
    owner: root
    group: root
    mode: 0644
    dest: /etc/prometheus/conf.d/prometheus.conf
    content: "{{ prometheus.config|to_nice_yaml(indent=2) }}"

- name: add self scrape job
  notify: regenerate prometheus config
  template:
    src: scrape_self.conf.j2
    dest: /etc/prometheus/conf.d/scrape_configs/selfscrape.conf

- name: add config generating script
  notify: regenerate prometheus config
  copy:
    dest: /usr/local/sbin/prometheus-generate-config.sh
    src: generate-config.sh
    mode: 0755
    owner: root
    group: root

- name: add cronjob to regenerate config
  cron:
    name: regenerate prometheus config
    minute: 3,18,33,48
    job: /usr/local/sbin/prometheus-generate-config.sh