---
# Installs the Grafana Dashboard, as described in:
# http://docs.grafana.org/installation/debian/
# http://docs.grafana.org/installation/configuration/

- name: Ensure repository key for Grafana is in place
  apt_key: url=https://packages.grafana.com/gpg.key state=present
  tags:
    - dependencies

- name: Add Grafana repository
  apt_repository: repo="deb https://packages.grafana.com/oss/deb stable main"
  tags:
    - dependencies

- name: Install Grafana from official repository
  apt:
    name: "{{ packages }}"
    state: present
    update_cache: yes
  vars:
    packages:
    - grafana
  tags:
    - dependencies

- name: Configure Grafana
  template:
    src=etc_grafana_grafana.j2
    dest=/etc/grafana/grafana.ini
    owner=root
    group=grafana
  notify: restart grafana

- name: Create Grafana data directory
  file: state=directory path=/data/grafana owner=grafana group=grafana

- name: Add Grafana postgres user
  postgresql_user:
    login_host=localhost
    login_user={{ db_admin_username }}
    login_password="{{ db_admin_password }}"
    name={{ grafana_db_username }}
    password="{{ grafana_db_password }}"
    encrypted=yes
    state=present

- name: Create Grafana database
  postgresql_db:
    login_host=localhost
    login_user={{ db_admin_username }}
    login_password="{{ db_admin_password }}"
    name={{ grafana_db_database }}
    state=present
    owner={{ grafana_db_username }}

- name: Register new Grafana service
  systemd: name=grafana-server daemon_reload=yes enabled=yes

- name: Start new Grafana instance
  service: name=grafana-server state=started

- name: Create the Apache Grafana sites config files
  template:
    src=etc_apache2_sites-available_grafana.j2
    dest=/etc/apache2/sites-available/grafana_{{ item.name }}.conf
    owner=root
    group=root
  with_items: "{{ virtual_domains }}"
  notify: restart apache

- name: Enable Apache sites (creates new sites-enabled symlinks)
  command: a2ensite grafana_{{ item }}.conf creates=/etc/apache2/sites-enabled/grafana_{{ item }}.conf
  notify: restart apache
  with_items: "{{ virtual_domains | json_query('[*].name') }}"