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- name: Install munin-node
  apt: pkg={{ packages }}
  vars:
    packages:
    - munin-node
    - munin-plugins-extra
    ###
    - acpi
    - lm-sensors
    - ethtool
    - hdparm
    - libwww-perl
    - libxml-simple-perl
    - logtail

- name: Create directory /usr/local/share/munin/plugins
  file: path=/usr/local/share/munin/plugins
        state=directory
        owner=root group=root
        mode=0755

- name: Copy our own Munin plugins
  copy: src={{ item }}
        dest=/usr/local/share/munin/plugins/
        owner=root group=root
        mode=0755
  with_fileglob:
    - usr/local/share/munin/plugins/*

- name: Configure munin-node
  template: src=etc/munin/{{ item }}.j2
            dest=/etc/munin/{{ item }}
            owner=root group=root
            mode=0644
  register: r1
  with_items:
    - munin-node.conf
    - plugin-conf.d/munin-node
  notify:
    - Restart munin-node

- name: Install Munin plugins
  file: src=/usr/share/munin/plugins/{{ item }}
        dest=/etc/munin/plugins/{{ item }}
        owner=root group=root
        state=link force=yes
  register: r2
  with_items:
    - cpu
    - df
    - df_inode
    - diskstats
    - entropy
    - fail2ban
    - forks
    - fw_conntrack
    - fw_forwarded_local
    - fw_packets
    - hddtemp_smartctl
    - interrupts
    - irqstats
    - load
    - memory
    - netstat
    - ntp_kernel_err
    - ntp_kernel_pll_freq
    - ntp_kernel_pll_off
    - ntp_offset
    - open_files
    - open_inodes
    - processes
    - proc_pri
    - swap
    - threads
    - uptime
    - users
    - vmstat
  notify:
    - Restart munin-node

- name: Delete unnecessary Munin plugins
  file: path=/etc/munin/plugins/{{ item }}
        state=absent
  register: r3
  with_items:
    - http_loadtime
    - ip_255.255.255.255
    - postfix_mailqueue
    - postfix_mailvolume
  notify:
    - Restart munin-node

- name: Install 'if_' Munin wildcard plugin
  file: src=/usr/share/munin/plugins/{{ item.0 }}_
        dest=/etc/munin/plugins/{{ item.0 }}_{{ item.1 }}
        owner=root group=root
        state=link force=yes
  register: r4
  with_nested:
    - [ if, if_err ]
    - [ lo, "{{ ansible_default_ipv4.interface }}" ]
  notify:
    - Restart munin-node

- name: Install 'postfix_mailvolume2' Munin plugin
  file: src=/usr/local/share/munin/plugins/postfix_mailvolume2
        dest=/etc/munin/plugins/postfix_mailvolume2
        owner=root group=root
        state=link force=yes
  register: r5
  notify:
    - Restart munin-node

- name: Install 'postfix_mailqueue_' Munin wildcard plugin
  file: src=/usr/local/share/munin/plugins/postfix_mailqueue_
        dest=/etc/munin/plugins/postfix_mailqueue_postfix
        owner=root group=root
        state=link force=yes
  register: r6
  notify:
    - Restart munin-node

- name: Install 'postfix_stats_' Munin wildcard plugin
  file: src=/usr/local/share/munin/plugins/postfix_stats_
        dest=/etc/munin/plugins/postfix_stats_{{ item }}_postfix
        owner=root group=root
        state=link force=yes
  register: r7
  with_items:
    - smtpd
    - qmgr
    - smtp
  notify:
    - Restart munin-node

- name: Start munin-node
  service: name=munin-node state=started
  when: not (r1.changed or r2.changed or r3.changed or r4.changed or r5.changed or r6.changed or r7.changed)

- meta: flush_handlers