#! /usr/bin/env ruby # frozen_string_literal: false # # disk-capacity-metrics # # DESCRIPTION: # This plugin uses df to collect disk capacity metrics # disk-metrics.rb looks at /proc/stat which doesnt hold capacity metricss. # could have intetrated this into disk-metrics.rb, but thought I'd leave it up to # whomever implements the checks. # # OUTPUT: # metric data # # PLATFORMS: # Linux # # DEPENDENCIES: # gem: sensu-plugin # gem: socket # # USAGE: # # NOTES: # # LICENSE: # Copyright 2012 Sonian, Inc # Released under the same terms as Sensu (the MIT license); see LICENSE # for details. # require 'sensu-plugin/metric/cli' require 'socket' # # Disk Capacity # class DiskCapacity < Sensu::Plugin::Metric::CLI::Graphite option :scheme, description: 'Metric naming scheme, text to prepend to .$parent.$child', long: '--scheme SCHEME', default: Socket.gethostname.to_s # Unused ? # def convert_integers(values) values.each_with_index do |value, index| begin converted = Integer(value) values[index] = converted rescue ArgumentError # rubocop:disable Lint/SuppressedException end end values end # Main function # def run # Get capacity metrics from DF as they don't appear in /proc command = if Gem::Platform.local.os == 'solaris' 'df -k' else 'df -PT' end `#{command}`.split("\n").drop(1).each do |line| begin fs, _type, _blocks, used, avail, capacity, _mnt = line.split timestamp = Time.now.to_i if fs =~ /\/dev/ fs = fs.sub('/dev/', '') metrics = { disk: { "#{fs}.used" => used, "#{fs}.avail" => avail, "#{fs}.capacity" => capacity.delete('%') } } metrics.each do |parent, children| children.each do |child, value| output [config[:scheme], parent, child].join('.'), value, timestamp end end end rescue StandardError unknown "malformed line from df: #{line}" end end # Get inode capacity metrics if Gem::Platform.local.os != 'solaris' `df -Pi`.split("\n").drop(1).each do |line| begin fs, _inodes, used, avail, capacity, _mnt = line.split timestamp = Time.now.to_i if fs =~ /\/dev/ fs = fs.sub('/dev/', '') metrics = { disk: { "#{fs}.iused" => used, "#{fs}.iavail" => avail, "#{fs}.icapacity" => capacity.delete('%') } } metrics.each do |parent, children| children.each do |child, value| output [config[:scheme], parent, child].join('.'), value, timestamp end end end rescue StandardError unknown "malformed line from df: #{line}" end end end ok end end