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‎plugins/gpg/check-gpg-expiration.rb‎

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#! /usr/bin/env ruby
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# encoding: UTF-8
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# check-gpg-expiration
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#
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# DESCRIPTION:
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# This will check if given GPG key ID is about to expire.
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# Optionally you can specify the GPG homedir
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#
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# OUTPUT:
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# plain text
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# Defaults: CRITICAL if key ID is about to expire in 30 days
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# WARNING if key ID is about expire in 60 days
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#
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# PLATFORMS:
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# Linux
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#
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# DEPENDENCIES:
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# gem: sensu-plugin
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# gem: json
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# gem: csv
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# gem: open3
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# gem: date
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# gem: time
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# GPG
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#
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# USAGE:
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# check-gpg-expiration.rb -i <GPG_KEY_ID>
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# check-gpg-expiration.rb -w 7 -c 2 -i <GPG_KEY_ID>
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#
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# LICENSE:
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# Yasser Nabi yassersaleemi@gmail.com
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# Released under the same terms as Sensu (the MIT license); see LICENSE
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# for details.
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require 'sensu-plugin/check/cli'
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require 'rubygems' if RUBY_VERSION < '1.9.0'
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require 'csv'
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require 'open3'
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require 'date'
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require 'time'
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# Use to see if any processes require a restart
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class CheckGpgExpire < Sensu::Plugin::Check::CLI
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option :warn,
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short: '-w WARN',
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default: 60
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option :crit,
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short: '-c CRIT',
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default: 30
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option :homedir,
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short: '-h GPG_HOMEDIR',
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long: '--homedir GPG_HOMEDIR'
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option :id,
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short: '-i GPG_KEY_ID',
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long: '--id GPG_KEY_ID',
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required: true
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GPG = '/usr/bin/gpg'
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# Set things up
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def initialize
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super
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end
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# Helper method that returns the number of days since epoch
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# from a given epoch parameter
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def days_since_epoch(e)
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epoch = Date.new(1970, 1, 1)
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d = Time.at(e).to_date
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(d - epoch).to_i
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end
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# Run the GPG command and return the expiration date in epoch
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def key_expire
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return_val = [false, nil]
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args = ['--with-colons', '--fixed-list-mode', '--list-key', config[:id]]
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gpg_cmd = config[:homedir].nil? ? [GPG] + args : [GPG, "--homedir #{config[:homedir]}"] + args
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cmd_out, cmd_err, status = Open3.capture3 gpg_cmd.join ' '
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if status.success?
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CSV.parse(cmd_out, col_sep: ':') do |row|
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return_val = [true, row[6].to_i] if row[0] == 'pub'
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end
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else
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return_val = [false, cmd_err]
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end
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return_val
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end
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# Check the GPG key expiration against today
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def check_gpg
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today_epoch = Date.today.to_time.to_i
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success, out = key_expire
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return_val = success ? days_since_epoch(out) - days_since_epoch(today_epoch) : out
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return_val.to_s
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end
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def run
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output = check_gpg
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case output
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when /^-\d+$/
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message "Key #{config[:id]} has expired!"
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critical
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when /^\d+$/
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message "Key #{config[:id]} has #{output} day(s) until it expires"
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warning if output.to_i <= config[:warn] && output.to_i > config[:crit]
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critical if output.to_i <= config[:crit]
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ok
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else
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message output
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unknown
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end
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end
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end

‎plugins/springboot/springboot-metrics.rb‎

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#! /usr/bin/env ruby
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#
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# springboot-metrics
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#
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# DESCRIPTION:
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# get metrics from Spring Boot 1.2.x application using actuator endpoints
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#
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# OUTPUT:
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# plain text
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#
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# PLATFORMS:
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# Linux
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#
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# DEPENDENCIES:
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# gem: sensu-plugin
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# gem: json
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# gem: uri
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#
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# USAGE:
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#
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# All metrics:
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# springboot-metrics.rb --host=192.168.1.1 &
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# --port=8081 &
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# --username=admin --password=secret &
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# --path=/metrics --counters --gauges
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# Exclude counters and gauges:
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# springboot-metrics.rb --host=192.168.1.1 &
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# --port=8081 &
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# --username=admin --password=secret --path=/metrics
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#
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# NOTES:
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# Check with Spring Boot 1.2.0 actuator endpoints
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#
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# LICENSE:
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# Copyright 2014 Victor Pechorin <dev@pechorina.net>
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# Released under the same terms as Sensu (the MIT license); see LICENSE
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# for details.
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#
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require 'rubygems' if RUBY_VERSION < '1.9.0'
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require 'sensu-plugin/metric/cli'
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require 'net/http'
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require 'net/https'
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require 'json'
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require 'uri'
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class SpringBootMetrics < Sensu::Plugin::Metric::CLI::Graphite
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option :host,
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short: '-h HOST',
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long: '--host HOST',
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description: 'Your spring boot actuator endpoint',
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required: true,
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default: 'localhost'
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option :port,
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short: '-P PORT',
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long: '--port PORT',
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description: 'Your app port',
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required: true,
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default: 8080
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option :username,
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short: '-u USERNAME',
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long: '--username USERNAME',
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description: 'Your app username',
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required: false
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option :password,
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short: '-p PASSWORD',
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long: '--password PASSWORD',
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description: 'Your app password',
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required: false
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option :path,
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short: '-e PATH',
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long: '--path PATH',
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description: 'Metrics endpoint path',
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required: true,
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default: '/metrics'
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option :scheme,
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description: 'Metric naming scheme, text to prepend to metric',
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short: '-s SCHEME',
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long: '--scheme SCHEME',
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required: true,
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default: "#{Socket.gethostname}.springboot_metrics"
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option :counters,
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description: 'Include counters',
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short: '-c',
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long: '--counters',
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boolean: true,
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default: false
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option :gauges,
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description: 'Include gauges',
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short: '-g',
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long: '--gauges',
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boolean: true,
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default: false
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def json_valid?(str)
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JSON.parse(str)
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return true
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rescue JSON::ParserError
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return false
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end
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def run
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endpoint = "http://#{config[:host]}:#{config[:port]}"
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url = URI.parse(endpoint)
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begin
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res = Net::HTTP.start(url.host, url.port) do |http|
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req = Net::HTTP::Get.new(config[:path])
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if config[:username] && config[:password]
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req.basic_auth(config[:username], config[:password])
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end
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http.request(req)
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end
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rescue Timeout::Error, Errno::EINVAL, Errno::ECONNRESET,
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EOFError, Net::HTTPBadResponse,
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Net::HTTPHeaderSyntaxError, Net::ProtocolError,
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Errno::ECONNREFUSED => e
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critical e
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end
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if json_valid?(res.body)
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json = JSON.parse(res.body)
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json.each do |key, val|
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if key.to_s.match(/^counter\.(.+)/)
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output(config[:scheme] + '.' + key, val) if config[:counters]
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elsif key.to_s.match(/^gauge\.(.+)/)
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output(config[:scheme] + '.' + key, val) if config[:gauges]
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else
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output(config[:scheme] + '.' + key, val)
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end
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end
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else
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critical 'Response contains invalid JSON'
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end
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ok
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end
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end

‎plugins/system/check-cpu.sh‎

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#!/bin/bash
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#
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# Check CPU usage
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#
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# ===
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#
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# Examples:
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#
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# check-cpu.sh -w 85 -c 95
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#
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# Date: 2014-09-12
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# Author: Jun Ichikawa <jun1ka0@gmail.com>
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#
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# Released under the same terms as Sensu (the MIT license); see LICENSE
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# for details.
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# get arguments
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while getopts 'w:c:h' OPT; do
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case $OPT in
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w) WARN=$OPTARG;;
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c) CRIT=$OPTARG;;
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h) hlp="yes";;
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*) unknown="yes";;
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esac
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done
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# usage
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HELP="
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usage: $0 [ -w value -c value -p -h ]
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-w --> Warning percentage < value
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-c --> Critical percentage < value
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-h --> print this help screen
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"
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if [ "$hlp" = "yes" ]; then
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echo "$HELP"
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exit 0
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fi
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cpuusage1=(`cat /proc/stat | head -1`)
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if [ ${#cpuusage1} -eq 0 ]; then
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echo "CRITICAL - CPU UNKNOWN"
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exit 2
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fi
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sleep 1
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cpuusage2=(`cat /proc/stat | head -1`)
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if [ ${#cpuusage2} -eq 0 ]; then
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echo "CRITICAL - CPU UNKNOWN"
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exit 2
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fi
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WARN=${WARN:=90}
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CRIT=${CRIT:=95}
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cpu_diff=(0)
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total=0
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usage_diff=0
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for i in `seq 1 9`
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do
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cpu_diff=("${cpu_diff[@]}" `echo "${cpuusage2[$i]}-${cpuusage1[$i]}" | bc`)
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total=`echo "$total+${cpu_diff[$i]}" | bc`
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if [ $i -ne "4" ]; then
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usage_diff=`echo "$usage_diff+${cpu_diff[$i]}" | bc`
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else
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idl=$cpu_diff[$i]
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fi
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done
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cpu_usage=`echo "scale=2; 100*$usage_diff/$total" | bc`
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if [ "$(echo "${cpu_usage} > ${CRIT}" | bc)" -eq 1 ]; then
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echo "CPU CRITICAL - ${cpu_usage}% is greater than critical point.[${CRIT}]"
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exit 2
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fi
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if [ "$(echo "${cpu_usage} > ${WARN}" | bc)" -eq 1 ]; then
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echo "CPU WARNING - ${cpu_usage}% is greater than warning point.[${WARN}]"
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exit 1
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fi
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echo "CPU OK - Usage:${cpu_usage}"
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exit 0

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