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-== Munin ==
-
-Munin is a performance monitoring system which creates nice RRD graphs and has
-a very easy plugin interface. The munin homepage is http://munin.projects.linpro.no/
-
-To use this module, follow these directions:
-
-0. This module requires puppet 2.7 or newer.
-
-1. Install the "common", "concat" and "stdlib" modules -- the munin module
- depends on functions that are defined and installed via these modules.
-
-2. You will need storedconfigs enabled in your puppet setup, to do that you need to
- add a line to your puppet.conf in your [puppetmasterd] section which says:
-
- storeconfigs=true
-
- You may wish to immediately setup a mysql/pgsql database for your storedconfigs, as
- the default method uses sqlite, and is not very efficient, to do that you need lines
- such as the following below the storeconfigs=true line (adjust as needed):
-
- dbadapter=mysql
- dbserver=localhost
- dbuser=puppet
- dbpassword=puppetspasswd
-
-3. Install the "munin" module:
-
- a. Your modules directory will need all the files included in this repository placed
- under a directory called "munin"
-
- b. For every host you wish to gather munin statistics, add the class munin::client to that
- node. You will want to set the class parameter 'allow' to be the IP(s) of the munin
- collector, this defines what IP is permitted to connect to the node, for example:
-
- node foo {
- class { 'munin::client': allow => '192.168.0.1'}
- }
-
- for multiple munin nodes, you can pass an array:
-
- class { 'munin::client': allow => [ '192.168.0.1', '10.0.0.1' ] }
-
- c. In the node definition in your site.pp for your main munin host, add the following:
-
- class { 'munin::host': }
-
- If you want cgi graphing you can pass cgi_graphing => true.
- (For CentOS this is enabled in the default header config)
- for more information, see: http://munin.projects.linpro.no/wiki/CgiHowto
-
- d. If there are particular munin plugins you want to enable or configure, you define them
- in the node definition, like follows:
-
- # Enable monitoring of disk stats in bytes
- munin::plugin { 'df_abs': }
-
- # Use a non-standard plugin path to use custom plugins
- munin::plugin { 'spamassassin':
- ensure => present,
- script_path => '/usr/local/share/munin-plugins',
- }
-
- # For wildcard plugins (eg. ip_, snmp_, etc.), use the name variable to
- # configure the plugin name, and the ensure parameter to indicate the base
- # plugin name to which you want a symlink, for example:
- munin::plugin { [ 'ip_192.168.0.1', 'ip_10.0.0.1' ]:
- ensure => 'ip_'
- }
-
- # Use a special config to pass parameters to the plugin
- munin::plugin {
- [ 'apache_accesses', 'apache_processes', 'apache_volume' ]:
- ensure => present,
- config => 'env.url http://127.0.0.1:80/server-status?auto'
- }
-
- e. If you have Linux-Vservers configured, you will likely have multiple munin-node processes
- competing for the default port 4949, for those nodes, set an alternate port for munin-node
- to run on by putting something similar to the following class parameter:
-
- class { 'munin::client': allow => '192.168.0.1', port => '4948' }
-