Installation/configuration de Munin

roles/munin-client/handlers/main.yml

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

roles/munin-client/tasks/main.yml

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+- set_fact:
+    muninpkgs:
+        - muninlite
+    munin_need_reconfigure: False
+  when: ansible_facts['distribution'] == "LEDE" 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
+
+- name: install LWP::UserAgent
+  package:
+      name: libwww-perl
+      state: present
+  notify:
+      - restart munin-node
+  when: "'webservers' 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 LXC
+- name: delete diskstats from LXC machines
+  file:
+      path: /etc/munin/plugins/diskstats
+      state: absent
+  notify:
+      - restart munin-node
+  when: ansible_facts['virtualization_type'] == "lxc"
+
+## Useless junks for hypervisors
+- name: delete squid plugins
+  shell:
+      cmd: "rm -f /etc/munin/plugins/squid_*"
+      warn: False
+  notify:
+      - restart munin-node
+  when: "'hypervisors' in group_names"
+
+- name: delete lxc interfaces plugins
+  shell:
+      cmd: "rm -f /etc/munin/plugins/if_*veth* /etc/munin/plugins/if_*fw* /etc/munin/plugins/if_*vmbr*"
+      warn: False
+  notify:
+      - restart munin-node
+  when: "'hypervisors' in group_names"

roles/munin-client/templates/munin-node.conf.j2

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+#
+# Example config-file for munin-node
+#
+
+log_level 4
+log_file /var/log/munin/munin-node.log
+pid_file /var/run/munin/munin-node.pid
+
+background 1
+setsid 1
+
+user root
+group root
+
+# This is the timeout for the whole transaction.
+# Units are in sec. Default is 15 min
+#
+# global_timeout 900
+
+# This is the timeout for each plugin.
+# Units are in sec. Default is 1 min
+#
+# timeout 60
+
+# Regexps for files to ignore
+ignore_file [\#~]$
+ignore_file DEADJOE$
+ignore_file \.bak$
+ignore_file %$
+ignore_file \.dpkg-(tmp|new|old|dist)$
+ignore_file \.rpm(save|new)$
+ignore_file \.pod$
+
+# Set this if the client doesn't report the correct hostname when
+# telnetting to localhost, port 4949
+#
+host_name {{ inventory_hostname }}
+
+# A list of addresses that are allowed to connect.  This must be a
+# regular expression, since Net::Server does not understand CIDR-style
+# network notation unless the perl module Net::CIDR is installed.  You
+# may repeat the allow line as many times as you'd like
+
+allow ^{{ hostvars['munin.dmz.mateu.be']['ansible_default_ipv4']['address'].split('.')|join('\.') }}
+allow ^127\.0\.0\.1$
+allow ^::1$
+
+# If you have installed the Net::CIDR perl module, you can use one or more
+# cidr_allow and cidr_deny address/mask patterns.  A connecting client must
+# match any cidr_allow, and not match any cidr_deny.  Note that a netmask
+# *must* be provided, even if it's /32
+#
+# Example:
+#
+# cidr_allow 127.0.0.1/32
+# cidr_allow 192.0.2.0/24
+# cidr_deny  192.0.2.42/32
+
+# Which address to bind to;
+host *
+# host 127.0.0.1
+
+# And which port
+port 4949