bin/metrics-entropy.rb
#! /usr/bin/env ruby
# frozen_string_literal: true
# entropy-metrics
#
# DESCRIPTION:
#
# OUTPUT:
# metric data
#
# PLATFORMS:
# Linux
#
# DEPENDENCIES:
# gem: sensu-plugin
# gem: <?>
#
# USAGE:
#
# NOTES:
#
# LICENSE:
# Copyright 2012 Sonian, Inc <chefs@sonian.net>
# Released under the same terms as Sensu (the MIT license); see LICENSE
# for details.
#
require 'sensu-plugin/metric/cli'
require 'socket'
#
# Entropy Graphite
#
class EntropyGraphite < Sensu::Plugin::Metric::CLI::Graphite
option :scheme,
description: 'Metric naming scheme, text to prepend to metric',
short: '-s SCHEME',
long: '--scheme SCHEME',
default: "#{Socket.gethostname}.entropy"
def run
File.open('/proc/sys/kernel/random/entropy_avail', 'r').each_line do |line|
entropy = line.strip.split(/\s+/).shift
output config[:scheme].to_s, entropy
end
ok
end
end