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nagios-puppet

A collection of Nagios scripts/plugins for monitoring Puppet stuff.

License

Copyright (c) 2012 Jason Hancock [email protected]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

PLUGINS:

check_pupdash_nodes:

This check is designed to be run against a host that is running the puppet dashboard application. The plugin grabs the index page of the application and parses the results, generating a graph of machines based on their current state:

check_pupdash_nodes

Assuming that your host running the dashboard app is in a hostgroup called 'Puppet Dashboard', an example configuration might resemble this:

define command{
    command_name check_pupdash_nodes
    command_line $USER1$/check_pupdash_nodes -H $HOSTADDRESS$ -p 80
}

define service{
    use                  generic-service-graphed
    service_description  Puppet Dashboard Nodes
    hostgroups           Puppet Dashboard
    check_command        check_pupdash_nodes
}

If the dashboard is running on a port other than port 80, adjust the -p parameter in the command. If your dashboard is behind ssl, add the -s option. If you are using HTTP basic authentication, see the -U, -P and -r options.

check_puppet_comptime:

This check is designed to be run locally on the puppetmaster via NRPE and returns the average catalog compilation time based on the puppetmaster's log.

Example NRPE configuration:

command[check_puppet_comptime]=/usr/bin/sudo /usr/lib64/nagios/plugins/check_puppet_comptime -w 2 -c 3 -f /var/log/messages

Note that because the script is parsing the syslog, you need root access. If you are logging to some other file, then this may not be necessary. To enable nrpe to run this plugin as root, I added the following to my sudoers file:

Cmnd_Alias PUPPET = /usr/lib64/nagios/plugins/check_puppet_comptime *
nrpe  ALL=(ALL)       NOPASSWD: PUPPET

You may also need to comment out Defaults requiretty in your sudoers file". Once you have the NRPE config working, configure the nagios side of things just like you would for any other NRPE check.

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