gistfile1.txt

#!/usr/bin/env ruby
#  encoding: UTF-8
#   metrics-nut.rb
#
# DESCRIPTION:
#   This plugin uses polls UPS metrics from NUT and produces
#   Graphite formated output.
#
# OUTPUT:
#   metric data
#
# PLATFORMS:
#   Linux
#
# DEPENDENCIES:
#   gem: sensu-plugin
#   nut
#
# USAGE:
#
# NOTES:
#
# LICENSE:
#   Copyright 2015 Tim Smith <tim@cozy.co> Cozy Services Ltd.
#   Based on check-temperature, Copyright 2012 Wantudu SL <dsuarez@wantudu.com>
#   Released under the same terms as Sensu (the MIT license); see LICENSE
#   for details.
#

require 'sensu-plugin/metric/cli'
require 'socket'

class Nut < Sensu::Plugin::Metric::CLI::Graphite
  option :scheme,
         description: 'Metric naming scheme, text to prepend to .$parent.$child',
         long: '--scheme SCHEME',
         default: "#{Socket.gethostname}.ups"

  def run
    instances = `upsc -l`.split("\n")

    metrics = {}
    instances.each do |ups|
      metrics["#{ups}"] = {}
      output = `upsc #{ups}`.split("\n")
      output.each do |line|
        case line
        when /battery.voltage: (.+)/
          metrics["#{ups}"]['battery_voltage'] = $1
        when /input.voltage: (.+)/
          metrics["#{ups}"]['input_voltage'] = $1
        when /ups.temperature: (.+)/
          metrics["#{ups}"]['temperature'] = $1
        when /ups.status: (.+)/
          if $1 == 'OL'
            metrics["#{ups}"]['on_battery'] = 0
          else
            metrics["#{ups}"]['on_battery'] = 1
          end
        end
      end
    end

    timestamp = Time.now.to_i

    metrics.each do |ups, data|
      data.each do |key, value|
        output [config[:scheme], ups, key].join('.'), value, timestamp
      end
    end

    ok
  end
end