Script that scrapes alert statistics from Nagios and reports them to Librato
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README.md
rearviewmirror.rb

README.md

rearviewmirror

rearviewmirror is a simple script for gathering Nagios problem statistics and submitting them to Librato. It focuses on summary (overall, servicegroup and hostgroup) statistics and writes them to the nagios.problems metrics namespace within Librato.

rearviewmirror is a fork of Ledbetter.

Installation

Clone the GitHub repository and use Bundler to install the gem dependencies.

$ git clone https://github.com/github/rearviewmirror.git
$ cd rearviewmirror
$ bundle install

Usage

rearviewmirror requires a number of environment variables for runtime configuration. The following example demonstrates how to run it manually from the command line, but you would typically run it as a cron job.

$ export NAGIOS_URL=http://nagios.foo.com/cgi-bin/nagios3
$ export NAGIOS_USER=foo
$ export NAGIOS_PASS=bar
$ export LIBRATO_USER="foo@bar.com"
$ export LIBRATO_TOKEN="aec123765489fe45a6"
$ bundle exec ruby rearviewmirror.rb

Optionally you can set VERBOSE=1 to also print statistics to stdout. LIBRATO_PREFIX can also be set to override the default namespace (nagios.problems).

$ VERBOSE=1 bundle exec ruby rearviewmirror.rb
nagios.problems.all 41 1359170720
nagios.problems.critical 27 1359170720
nagios.problems.warning 12 1359170720
nagios.problems.unknown 2 1359170720
nagios.problems.servicegroups.apache 0 1359170720
nagios.problems.servicegroups.backups 3 1359170720
nagios.problems.servicegroups.dns 0 1359170720
nagios.problems.servicegroups.mysql 1 1359170720
...

License

rearviewmirror is distributed under the MIT license.