iiab/roles/munin/tasks/enable.yml

- name: If MySQL is enabled, let Munin monitor it
  copy:
    src: "{{ item }}"
    dest: /etc/munin/plugins/
  with_items:
    - /usr/share/munin/plugins/mysql_
    - /usr/share/munin/plugins/mysql_bytes
    - /usr/share/munin/plugins/mysql_innodb
    - /usr/share/munin/plugins/mysql_isam_space_
    - /usr/share/munin/plugins/mysql_queries
    - /usr/share/munin/plugins/mysql_slowqueries
    - /usr/share/munin/plugins/mysql_threads
  when: mysql_enabled | bool

- name: Enable & Start munin-node systemd service
  systemd:
    name: munin-node
    enabled: yes
    state: started
  when: munin_enabled | bool

- name: Disable munin-node service if not munin_enabled
  systemd:
    name: munin-node
    enabled: no
    state: stopped
  when: not munin_enabled

- name: Create symlink munin24.conf from sites-enabled to sites-available (debuntu)
  file:
    src: /etc/apache2/sites-available/munin24.conf
    path: /etc/apache2/sites-enabled/munin24.conf
    state: link
  when: munin_enabled and not nginx_enabled

- name: Remove symlink /etc/apache2/sites-enabled/munin24.conf if not munin_enabled (debuntu)
  file:
    path: /etc/apache2/sites-enabled/munin24.conf
    state: absent
  when: not munin_enabled or nginx_enabled

- name: Install /etc/nginx/conf.d/munin24-nginx.conf, from templates
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: root
    group: root
    mode: 0644
  with_items:
    - { src: 'munin24-nginx.conf.j2', dest: '/etc/nginx/conf.d/munin24-nginx.conf' }
  when: munin_enabled | bool and nginx_enabled | bool

- name: Add 'munin' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"
    section: munin
    option: "{{ item.option }}"
    value: "{{ item.value }}"
  with_items:
    - option: name
      value: Munin
    - option: description
      value: '"Munin is a networked resource monitoring tool that can help analyze resource trends and \"what just happened to kill our performance?\" problems."'
    - option: installed
      value: "{{ munin_install }}"
    - option: enabled
      value: "{{ munin_enabled }}"