- set_fact:
    muninpkgs:
        - muninlite
    munin_need_reconfigure: False
  when: ansible_facts['distribution'] == "LEDE" or ansible_facts['distribution'] == "OpenWRT" or ansible_facts['distribution'] == "OpenWrt"

- set_fact:
    muninpkgs:
        - munin-node
        - munin-plugins-core
        - munin-plugins-extra
    munin_need_reconfigure: True
  when: ansible_facts['distribution'] == "Debian"

- name: install munin node packages
  package:
      name: "{{ item }}"
      state: present
  loop: "{{ muninpkgs }}"

- name: munin-node conf file
  template:
      src: munin-node.conf.j2
      dest: /etc/munin/munin-node.conf
  notify:
      - restart munin-node
  when: munin_need_reconfigure

## Adding modules for specific functions
# for NginX webservers
- name: install LWP::UserAgent
  package:
      name: libwww-perl
      state: present
  notify:
      - restart munin-node
  when: "'webservers' in group_names or 'loadbalancers' in group_names"

# for HAProxy servers
- name: add HAProxy backend module
  file:
      src: /usr/share/munin/plugins/haproxy_
      dest: /etc/munin/plugins/haproxy_current
      state: link
  notify:
      - restart munin-node
  when: "'loadbalancers' in group_names"

# For MariaDB servers
- name: install Cache::Cache
  package:
      name: libcache-cache-perl
      state: present
  notify:
      - restart munin-node
  when: "'mariadbservers' in group_names"

# For PGSQL servers
- name: install DBD::Pg
  package:
      name: libdbd-pg-perl
      state: present
  notify:
      - restart munin-node
  when: "'pgsqlservers' in group_names"

# For Munin servers
- name: execute specific tasks for munin servers
  include_tasks: mikrotik.yml
  when: "'muninservers' in group_names"

# for NUT (UPS) servers
- name: "add specific nut value for UPS"
  file:
      path: "/etc/munin/plugins/nutups_eaton3s_{{ item }}"
      src: /usr/share/munin/plugins/nutups_
      state: link
  notify:
      - restart munin-node
  when: "'nut_server' in group_names"
  loop:
      - charge
      - voltages

# for physical servers
- name: execute specific tasks for physical servers
  include_tasks: physical_servers.yml
  when: "'hypervisors' in group_names"

- name: reconfigure munin-node
  shell:
      cmd: munin-node-configure --shell | sh
  notify:
      - restart munin-node
  when: munin_need_reconfigure

## Useless junks for everyone
- name: delete useless junks for everyone
  file:
      path: "/etc/munin/plugins/{{ item }}"
      state: absent
  when: munin_need_reconfigure
  loop:
      - uptime
      - users

## Useless junks for LXC
- name: "delete junks from LXC machines"
  file:
      path: "/etc/munin/plugins/{{ item }}"
      state: absent
  notify:
      - restart munin-node
  when: ansible_facts['virtualization_type'] == "lxc"
  loop:
      - cpuspeed
      - diskstats
      - entropy
      - irqstats

## Useless junks for hypervisors
- name: execute delete states for hypervisors
  include_tasks: hypervisors.yml
  when: "'hypervisors' in group_names"