Module: VGH

Defined in:
lib/vgh.rb,
lib/vgh/cli.rb,
lib/vgh/ec2.rb,
lib/vgh/apps.rb,
lib/vgh/output.rb,
lib/vgh/system.rb,
lib/vgh/logging.rb,
lib/vgh/version.rb,
lib/vgh/ec2/volume.rb,
lib/vgh/system/lvm.rb,
lib/vgh/ec2/metadata.rb,
lib/vgh/ec2/snapshot.rb,
lib/vgh/system/mysql.rb,
lib/vgh/configuration.rb,
lib/vgh/apps/checkpoint.rb,
lib/vgh/apps/ec2_backup.rb

Overview

See the README file.

Defined Under Namespace

Modules: APPS, EC2, System Classes: CLI, Configuration, Logging, Output

Constant Summary collapse

VERSION =

Version number

"0.2.6"

Instance Method Summary collapse

Instance Method Details

#app ⇒ String

Returns the app name specified in the command line

Returns:

  • (String) 


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# File 'lib/vgh/cli.rb', line 13

def app
  $app ||= cli[:app]
end

#cli ⇒ Hash

Returns a global collection of options.

Returns:

  • (Hash) 


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# File 'lib/vgh/cli.rb', line 7

def cli
  $cli ||= CLI.new.options
end

#config ⇒ Hash

Global config method

Returns:

  • (Hash) 


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# File 'lib/vgh/configuration.rb', line 10

def config
  $config ||= Configuration.new.config
end

#ec2 ⇒ Object

Creates a global ec2 method.



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# File 'lib/vgh/ec2.rb', line 6

def ec2
  $ec2 = AWS::EC2.new
end

#fqdn ⇒ String

Returns the FQDN (either the one specified in the configuration file or the system’s one)

Returns:

  • (String) 


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# File 'lib/vgh/system.rb', line 6

def fqdn
  remote_fqdn = config[:fqdn]
  if remote_fqdn
    $fqdn ||= remote_fqdn
  else
    $fqdn ||= System.fqdn
  end
end

#instance_id ⇒ String

Looks for the instance id in the configuration. If it does not exist then it queries the API server for it.

Returns:

  • (String) 


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# File 'lib/vgh/ec2/metadata.rb', line 8

def instance_id
    remote_instance = config[:instance]
    if remote_instance
      $instance_id ||= remote_instance
    else
      $instance_id ||= VGH::EC2::MetaData.new.instance_id
    end
    return $instance_id
end

#log ⇒ Object

Log message



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# File 'lib/vgh/logging.rb', line 6

def log
  if logging?
    $log ||= Logging.new.log
  else
    $log ||= Logger.new('/dev/null')
  end
end

#logging? ⇒ Boolean

Returns logging

Returns:

  • (Boolean) 


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# File 'lib/vgh/cli.rb', line 25

def logging?
  $logging = cli[:logging]
end

#message ⇒ Object

Creates a global message method



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# File 'lib/vgh/output.rb', line 4

def message
  $message ||= Output.new
end

#run ⇒ Object

The main run method



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

def run

  # Display header
  show_header

  # Run apps
  case app
  when 'ec2-backup'
    APPS::EC2_Backup.new.run
  when 'checkpoint'
    APPS::Checkpoint.new.run
  end

  # Display footer
  show_footer

end

#show_footer ⇒ Object

Returns the footer



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# File 'lib/vgh.rb', line 46

def show_footer
  message.footer
end

#show_header ⇒ Object

Returns the header



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# File 'lib/vgh.rb', line 41

def show_header
  message.header
end

#verbose? ⇒ Boolean

Returns verbosity

Returns:

  • (Boolean) 


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# File 'lib/vgh/cli.rb', line 19

def verbose?
  $verbose = cli[:verbose]
end

#version ⇒ Object

Returns the version number



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# File 'lib/vgh/version.rb', line 6

def version
  VERSION
end