munin-monitoring.yml

---
# file: munin-monitoring.yml
# install munin master that monitors itself on ubuntu 14.04
# and uses apache and fast-cgi (for the dynamic zooming graphs)
# to host dashboard
- hosts: monitoring
  handlers:
  - name: restart munin-node
    service: name=munin-node state=restarted
  - name: restart apache2
    service: name=apache2 state=restarted
  tasks:
  - name: install monitoring packages
    apt: pkg={{ item }} state=installed
    with_items:
      - apache2
      - apache2-utils
      - libcgi-fast-perl
      - libapache2-mod-fcgid
      - munin
  - name: update munin conf
    lineinfile:
      dest=/etc/munin/munin.conf
      regexp="\[localhost.localdomain\]"
      line="[{{ ansible_hostname }}]"
      backup=yes
    notify:
      - restart munin-node
  # TODO: use a different strategy for updating apache.conf
  - name: update apache conf - part 1
    lineinfile:
      dest=/etc/munin/apache.conf
      regexp="#\s+Allow from localhost 127.0.0.0/8 ::1"
      state=absent
      backup=yes
  - name: update apache conf - part 2
    lineinfile:
      dest=/etc/munin/apache.conf
      regexp="\s+Order allow,deny"
      state=absent
  - name: update apache conf - part 3
    lineinfile:
      dest=/etc/munin/apache.conf
      regexp="\s+Options None"
      state=absent
  - name: update apache conf - part 4
    replace:
      dest=/etc/munin/apache.conf
      regexp="\s+Allow from localhost 127.0.0.0/8 ::1"
      replace="\n\tRequire all granted\n\tOptions FollowSymLinks SymLinksIfOwnerMatch"
      backup=yes
    notify:
      - restart apache2