NAME¶
VM::EC2::BlockDevice - Object describing how to construct an EC2 block device
when launching an image
SYNOPSIS¶
use VM::EC2;
$ec2 = VM::EC2->new(...);
$image = $ec2->describe_images(-image_id=>'ami-123456');
my @devices = $image->blockDeviceMapping;
for my $d (@devices) {
my $virtual_device = $d->deviceName;
my $snapshot_id = $d->snapshotId;
my $volume_size = $d->volumeSize;
my $delete = $d->deleteOnTermination;
}
DESCRIPTION¶
This object represents an Amazon block device associated with an AMI. The
information in it is used to create a new volume when the AMI is launched. The
object is returned by VM::EC2->
describe_images().
Please see VM::EC2::Generic for methods shared by all VM::EC2 objects.
METHODS¶
These object methods are supported:
deviceName -- name of the device, such as /dev/sda1
virtualName -- virtual device name, such as "ephemeral0"
noDevice -- true if no device associated
ebs -- parameters used to automatically set up Amazon EBS
volumes when an instance is booted. This returns
a VM::EC2::BlockDevice::EBS object.
For your convenience, a number of the
ebs() object's methods are passed
through:
snapshotId -- ID of the snapshot used to create this EBS when an
instance is launched from this image.
volumeSize -- Size of the EBS volume (in gigs).
deleteOnTermination -- Whether this EBS will be deleted when the
instance terminates.
volumeType -- The volume type, one of "standard" or "io1"
iops -- The number of I/O operations per second that the volume
supports, an integer between 100 and 4000. Only valid for
volumes of type "io1".
STRING OVERLOADING¶
When used in a string context, this object will be interpolated as:
deviceName=snapshotId:volumeSize:deleteOnTermination:volumeType:iops
The :iops portion is only valid when the volumeType is "io1".
e.g.
/dev/sdg=snap-12345:20:true:standard
This happens to be the same syntax used to specify block device mappings in
run_instances(). See VM::EC2.
SEE ALSO¶
VM::EC2 VM::EC2::Generic VM::EC2::BlockDevice VM::EC2::BlockDevice::Attachment
VM::EC2::BlockDevice::EBS VM::EC2::Volume
AUTHOR¶
Lincoln Stein <lincoln.stein@gmail.com>.
Copyright (c) 2011 Ontario Institute for Cancer Research
This package and its accompanying libraries is free software; you can
redistribute it and/or modify it under the terms of the GPL (either version 1,
or at your option, any later version) or the Artistic License 2.0. Refer to
LICENSE for the full license text. In addition, please see DISCLAIMER.txt for
disclaimers of warranty.