VM::EC2::BlockDevice::Attachment3pm

Usage

  use VM::EC2;
  $ec2         = VM::EC2->new(...);
  $volume      = $ec2->describe_volumes(-volume_id=>'vol-12345');
  $attachment  = $ec2->attachment;
  $volId       = $attachment->volumeId;
  $device      = $attachment->device;
  $instanceId  = $attachment->instanceId;
  $status      = $attachment->status;
  $time        = $attachment->attachTime;
  $delete      = $attachment->deleteOnTermination;
  $attachment->deleteOnTermination(1); # change delete flag

Overview

This object is used to describe the attachment of an Amazon EBS volume to an instance. It is returned by VM::EC2::Volume->attachment().

Methods

The following object methods are supported:

 volumeId         -- ID of the volume.
 instanceId       -- ID of the instance
 status           -- Attachment state, one of "attaching", "attached",
                     "detaching", "detached".
 attachTime       -- Timestamp for when volume was attached
 deleteOnTermination -- True if the EBS volume will be deleted when its
                     attached instance terminates. Note that this is a
                     Perl true, and not the string "true".

The deleteOnTermination method is slightly more sophisticated than the result from the standard AWS API because it returns the CURRENT deleteOnTermination flag for the attachment, which might have been changed by VM::EC2->modify_instance_attributes(). You may also change the deleteOnTermination state by passing a boolean argument to the method:

  $attachment->deleteOnTermination(1);

In addition, this class provides several convenience functions:

String overloading

When used in a string context, this object will interpolate into a string of the format "volumeId=>instanceId".