Class: VGH::APPS::Checkpoint

Inherits:
Object
  • Object
show all
Defined in:
lib/vgh/apps/checkpoint.rb

Overview

Description:

See Checkpoint Section in the README file.

Usage:

checkpoint = APPS::Checkpoint.new
checkpoint.run

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Checkpoint

Initialize external classes



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

def initialize
  @volumes ||= EC2::Volume.new
  @snapshot = EC2::Snapshot.new
end

Instance Attribute Details

#snapshot ⇒ Object (readonly)

Returns Snapshot Class.

Returns:

  • (Object) —

    Snapshot Class



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# File 'lib/vgh/apps/checkpoint.rb', line 19

def snapshot
  @snapshot
end

#volumes ⇒ Object (readonly)

Returns Volumes Class.

Returns:

  • (Object) —

    Volumes Class



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# File 'lib/vgh/apps/checkpoint.rb', line 16

def volumes
  @volumes
end

Instance Method Details

#run ⇒ Object

Runs the checkpoint app logic



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# File 'lib/vgh/apps/checkpoint.rb', line 28

def run

  System.lock

  volumes.list_tagged('CHECKPOINT').map {|vid|
    snapshot.snap_and_tag(
      vid,
      "CHECKPOINT for #{vid}(#{volumes.name_tag(vid)})",
      {
        'Name'   => fqdn,
        'CHECKPOINT' => "#{vid}"
      }
    )
    snapshot.purge_checkpoints
  }

  System.unlock

end