Class: AlertTweeter::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/alert_tweeter.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *a, &b) ⇒ Object (private) 



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# File 'lib/alert_tweeter.rb', line 126

def method_missing(name, *a, &b)
  namesym = name.to_sym
  if val = opts[namesym]
    return val
  else
    super
  end
end

Instance Attribute Details

#opts ⇒ Object (readonly)

Returns the value of attribute opts.



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# File 'lib/alert_tweeter.rb', line 22

def opts
  @opts
end

Class Method Details

.run!(*a, &b) ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 24

def self.run!(*a, &b)
  new.run!(*a, &b)
end

Instance Method Details

#config ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 28

def config
  @config ||= YAML.load_file(opts[:config])
end

#configure_client!(path) ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 36

def configure_client!(path)
  require 'yaml'

  hash = config.fetch('auth')

  Twitter.configure do |c|
    %w[consumer_key consumer_secret oauth_token oauth_token_secret].each do |k|
      c.__send__(:"#{k}=", hash.fetch(k))
    end
  end
end

#host_notify! ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 66

def host_notify!
  send_notification <<-EOS.strip_heredoc[0...140]
    #{notification_type} #{host_name} #{event_state}
    #{timestamp}
    #{host_output}
  EOS
end

#notify_users ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 32

def notify_users
  @config.fetch('notify_users')
end

#run!(*args) ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 74

def run!(*args)
  args << '-h' if args.empty?

  @opts = Slop.parse!(args, :strict => true, :help => true) do
    banner <<-EOS.strip_heredoc
      Usage: #{File.basename($0)} [opts] 

      Will direct-message the configured users about service problems. Command-line options
      are provided that more-or-less match their nagios macro counterparts.
    EOS

    on :f, :config,                 'path to the config file to use', true, :default => DEFAULT_CONFIG_PATH

    on :n, :notification_type,      'string describing the type of notification being sent', true

    on :s, :event_state,            'string indicating the state of event-generating object', true, :default => 'UNKNOWN'
    on :y, :event_state_type,       'HARD or SOFT', true

    on :H, :host_name,              'host name where the alert is triggered', true, :required => true
    on :a, :host_address,           'IP address of the host', true
    on :A, :host_attempt,           'number of the current re-check', true, :as => :integer
    on :O, :host_output,            'output from host check', true
    on :U, :host_duration_sec,      'number of seconds the host has spent in the current state', true, :as => :integer

    on :d, :service_desc,           'description of the service', true
    on :a, :service_attempt,        'number of the current re-check', true, :as => :integer
    on :u, :service_duration_sec,   'number of seconds the service has been in the current state', true, :as => :integer
    on :o, :service_output,         'first line of text output from the last service check', true

    on :t, :timet,                  'seconds since unix epoch', true, :as => :integer, :default => Time.now.to_i
  end

  if opts.help?
    $stderr.puts opts.help
    exit 1
  end

  unless opts[:service_output] or opts[:host_output]
    $stderr.puts "ERROR: You must specify either a --service_output or --host_output option"
    exit 1
  end

  configure_client!(opts[:config])

  if opts[:service_output]
    service_notify!
  else
    host_notify!
  end
end

#send_notification(message) ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 52

def send_notification(message)
  notify_users.each do |user|
    Twitter.direct_message_create(user, message)
  end
end

#service_notify! ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 58

def service_notify!
  send_notification <<-EOS.strip_heredoc[0...140]
    #{notification_type} #{host_name}/#{service_desc} #{event_state}
    #{timestamp}
    #{service_output}
  EOS
end

#timestamp ⇒ Object 



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# File 'lib/alert_tweeter.rb', line 48

def timestamp
  Time.at(timet.to_i).strftime('%Y-%m-%d %H:%M:%S')
end