---

- name: is Munin present ?
  stat:
    path: /etc/munin/plugin-conf.d/munin-node
  check_mode: no
  
  register: munin_node_plugins_config
  tags:
    - mysql
    - munin

- block:
  - name: Install libcache-cache-perl for Munin
    apt:
      name: libcache-cache-perl
      state: present

  - name: Enable core Munin plugins
    file:
      src: '/usr/share/munin/plugins/{{ item }}'
      dest: /etc/munin/plugins/{{ item }}
      state: link
    with_items:
      - mysql_bytes
      - mysql_queries
      - mysql_slowqueries
      - mysql_threads
    notify: restart munin-node

  - name: Enable contributed Munin plugins
    file:
      src: /usr/share/munin/plugins/mysql_
      dest: '/etc/munin/plugins/mysql_{{ item }}'
      state: link
    with_items:
      - connections
      - files_tables
      - innodb_bpool
      - innodb_bpool_act
      - innodb_io
      - innodb_log
      - innodb_rows
      - innodb_semaphores
      - myisam_indexes
      - qcache
      - qcache_mem
      - sorts
      - tmp_tables
    notify: restart munin-node

  when: munin_node_plugins_config.stat.exists
  tags:
    - mysql
    - munin