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Library to develop munin plugins
Ruby
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munin-plugin.gemspec

README.rdoc

munin

DESCRIPTION:

The munin gem provides a base class to create munin plugins in ruby.

FEATURES/PROBLEMS:

  • create munin plugin config output from class attributes

  • format munin plugin output from a map of values

  • support configuration based on filename

SYNOPSIS:

require 'rubygems'
require 'munin'

class FetchmailMailVolume < Munin::Plugin

  graph_attributes "Fetchmail bytes throughput", 
  :category => 'Mail',
  :info => 'This graph shows the volume of mails retrieved by fetchmail'

  declare_field :volume, 
  :label => 'throughput', :type => :derive, :min => 0

  def retrieve_values
    volume = 0
    File.open('/var/log/mail.log','r') do |f|
      while line = f.gets
        if line.match(/fetchmail\[[0-9]+\]: reading message .*\(([0-9]+) octets\)/)
          volume = volume + $1.to_i
        end
      end
    end
    { :volume => volume }
  end

end

FetchmailMailVolume.new.run

INSTALL:

  • sudo gem install munin

LICENSE:

(The MIT License)

Copyright © 2008 Alban Peignier

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.

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