# Top-level installer for Prometheus.

- name: create Prometheus group
  group:
    name: "{{ prometheus_group }}"
    state: present

- name: create Prometheus user
  user:
    name: "{{ prometheus_user }}"
    group: "{{ prometheus_group }}"
    createhome: no
    shell: /sbin/nologin
    comment: "Prometheus User"
    state: present

- name: create base directories
  file:
    path: "{{ item }}"
    state: directory
    owner: "{{ prometheus_user }}"
    group: "{{ prometheus_group }}"
    mode: "u=rwx,g=rx,o="
  loop:
    - "{{ prometheus_install_path }}"
    - "{{ prometheus_config_path }}"

- name: install helper utility "gosu"
  include_tasks: install-gosu.yml

- name: install and configure prometheus service
  include_tasks: prometheus.yml
  when: '"prometheus" in prometheus_components'

- name: install and configure node-exporter service
  include_tasks: node-exporter.yml
  when: '"node_exporter" in prometheus_components'

- name: install and configure alertmanager service
  include_tasks: alertmanager.yml
  when: '"alertmanager" in prometheus_components'

- name: set {{ prometheus_install_path }} permissions, owner and group
  file:
    path: "{{ prometheus_install_path }}"
    state: directory
    owner: "{{ prometheus_user }}"
    group: "{{ prometheus_group }}"
    mode: "go-w"
    recurse: yes