ajoute un rôle "munin"

Installation de Munin et changement de quelques plugins.

munin/README.md

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+# munin
+
+Installation de Munin et changement de quelques plugins.
+
+## Taches
+
+L'ensemble des actions est dans le fichier `tasks/main.yml`
+
+## Variables possibles
+
+Les seules variables sont liées au hostname (court et complet) qui sont simplement déduites des facts.

munin/handlers/main.yml

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+---
+- name: restart munin-node
+  service:
+    name: munin-node
+    state: restarted

munin/tasks/main.yml

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+---
+
+- name: Ensure that Munin is installed
+  apt:
+    name: '{{ item }}'
+    state: installed
+  with_items:
+    - munin
+    - munin-node
+    - munin-plugins-core
+    - munin-plugins-extra
+  tags:
+    - munin
+
+- block:
+  - name: Replace localdomain in Munin config
+    replace:
+      dest: /etc/munin/munin.conf
+      regexp: 'localhost.localdomain'
+      replace: '{{ ansible_fqdn }}'
+    notify: restart munin-node
+
+  - name: Rename the localdomain data dir
+    command: mv /var/lib/munin/localdomain /var/lib/munin/{{ ansible_domain }}
+    args:
+      creates: /var/lib/munin/{{ ansible_domain }}
+      removes: /var/lib/munin/localdomain
+    notify: restart munin-node
+
+  when: not ansible_hostname == "localdomain"
+  tags:
+    - munin
+
+- name: Ensure some Munin plugins are disabled
+  file:
+    path: '/etc/munin/plugins/{{ item }}'
+    state: absent
+  with_items:
+    - http_loadtime
+    - exim_mailqueue
+    - exim_mailstats
+    - nfsd
+    - nfsd4
+    - nfs_client
+    - nfs4_client
+  notify: restart munin-node
+  tags:
+    - munin
+
+- name: Ensure some Munin plugins are enabled
+  file:
+    src: "/usr/share/munin/plugins/{{ item }}"
+    dest: "/etc/munin/plugins/{{ item }}"
+    state: link
+  with_items:
+    - meminfo
+    - netstat_multi
+    - tcp
+  notify: restart munin-node
+  tags:
+    - munin
+
+- name: Enable sensors plugin unless VM detected
+  file:
+    src: /usr/share/munin/plugins/sensors_
+    dest: /etc/munin/plugins/sensors_temp
+    state: link
+  when: not ansible_virtualization_role == "guest"
+  notify: restart munin-node
+  tags:
+    - munin