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Munin system monitoring and graphing
Home Page: http://munin.projects.linpro.no/
This project forked from puppet-modules/puppet-munin
Munin system monitoring and graphing
Home Page: http://munin.projects.linpro.no/
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: 1. Install the "common" module -- the munin module depends on functions that are defined and installed via the common module, see README.common for how to do this 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. add the following line to your modules.pp: import "munin" (NOTE: if you have followed the directions in README.common then you will have import "modules.pp" in your site.pp, if you do not have that, then you will need to add the import line to your site.pp) c. Add to the top of your site.pp a variable which indicates what IP should be allowed to connect to your individual munin-nodes (this is typically your main munin host's IP): $munin_cidr_allow = '192.168.0.1/32' You can also put an array there. On pre-lenny systems, you have to use the older Regexp-variant: $munin_allow = '^192\.168\.0\.1$' d. In the node definition in your site.pp for your main munin host, add the following: include munin::host e. On each node that will gather munin statistics, add this line to that node's entry in site.pp (you may want to also add this to your main munin host): include munin::client f. 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 => "spamassassin", script_path => "/usr/local/share/munin-plugins", } # 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" } g. 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 in the node definition: $munin_port = 4948 4. Cleanup: If you need any manual configuration or had already nodes defined in your munin.conf, you can add/remove them from /etc/munin/munin.conf.header on the munin::host.
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