This allows you to easily write Nagios plugins in Ruby.
#!/usr/bin/env ruby require 'rubygems' require 'nagios-plugin' require 'time' class MyNagiosCheck < Nagios::Plugin # What should run when check is run def run # Get more options via arguments using the OptParse object. # -w and -c for warning and critical thresholds are already included @opts.on('-H', '--host HOST', 'Proxy server to check') do |h| @proxy_host = h end # Init the argument parser parse_argv # Begin the check begin # Record the second when the check started to run started_at=Time.now # Run the commands you actually need for your check some_ruby_code_to_run # Calculate the run time run_time = Time.now - started_at # Add Performance data add_perfdata(:field => "run time", :data => run_time, :critical => @critical, :warning => @warning, :uom => 'secs') # Check the values against the thresholds if run_time > @critical.to_f critical("Took more than #{@critical}") elsif run_time > @warning.to_f warning("Took more than #{@warning}") else ok("Yay!") end # When the code has failed rescue critical("Check Failed!") end end end # Initialize and run the check! @my_nagios_check = MyNagiosCheck.new(:shortname => 'my_nagios_check') @my_nagios_check.run
(The MIT License)
Copyright © 2011 Joshua Harding
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.