NAME

Net::Amazon::EC2 - Perl interface to the Amazon Elastic Compute Cloud (EC2) environment.

VERSION

This document describes version 0.06 of Net::Amazon::EC2, released February 15, 2008. This module is coded against the Query version of the '2007-08-29' version of the EC2 API.

SYNOPSIS

 use Net::Amazon::EC2;

 my $ec2 = Net::Amazon::EC2->new(
	AWSAccessKeyId => 'PUBLIC_KEY_HERE', 
	SecretAccessKey => 'SECRET_KEY_HERE'
 );

 # Start 1 new instance from AMI: ami-XXXXXXXX
 my $instance = $ec2->run_instances(ImageId => 'ami-XXXXXXXX', MinCount => 1, MaxCount => 1);

 my $running_instances = $ec2->describe_instances;

 foreach my $reservation (@$running_instances) {
    foreach my $instance ($reservation->instances_set) {
        print $instance->instance_id . "\n";
    }
 }

 my $instance_id = $instance->instances_set->[0]->instance_id;

 print "$instance_id\n";

 # Terminate instance

 my $result = $ec2->terminate_instances(InstanceId => $instance_id);

If an error occurs while communicating with EC2, the return value of these methods will be a Net::Amazon::EC2::Errors object.

DESCRIPTION

This module is a Perl interface to Amazon's Elastic Compute Cloud. It uses the Query API to communicate with Amazon's Web Services framework.

CLASS METHODS

new(%params)

This is the constructor, it will return you a Net::Amazon::EC2 object to work with. It takes these parameters:

AWSAccessKeyId (required)

Your AWS access key.

SecretAccessKey (required)

Your secret key, WARNING! don't give this out or someone will be able to use your account and incur charges on your behalf.

debug (optional)

A flag to turn on debugging. It is turned off by default

use_old_api (optional)

Setting this to 1 will cause the data coming back from the method calls to be returned as data structures instead of objects (set this to enable backwards compatibility with code written against 0.01-0.04 of this module)

NOTE: THIS BACKWARDS COMPATIBILITY WILL END AFTER THIS VERSION

OBJECT METHODS

authorize_security_group_ingress(%params)

This method adds permissions to a security group. It takes the following parameters:

GroupName (required)

The name of the group to add security rules to.

SourceSecurityGroupName (requred when authorizing a user and group together)

Name of the group to add access for.

SourceSecurityGroupOwnerId (required when authorizing a user and group together)

Owner of the group to add access for.

IpProtocol (required when adding access for a CIDR)

IP Protocol of the rule you are adding access for (TCP, UDP, or ICMP)

FromPort (required when adding access for a CIDR)

Beginning of port range to add access for.

ToPort (required when adding access for a CIDR)

End of port range to add access for.

CidrIp (required when adding access for a CIDR)

The CIDR IP space we are adding access for.

Adding a rule can be done in two ways: adding a source group name + source group owner id, or, by Protocol + start port + end port + CIDR IP. The two are mutally exclusive.

Returns 1 if rule is added successfully.

confirm_product_instance(%params)

Checks to see if the product code passed in is attached to the instance id, taking the following parameter:

ProductCode (required)

The Product Code to check

InstanceId (required)

The Instance Id to check

Returns a Net::Amazon::EC2::ConfirmProductInstanceResponse object

create_key_pair(%params)

Creates a new 2048 bit key pair, taking the following parameter:

KeyName (required)

A name for this key. Should be unique.

Returns a Net::Amazon::EC2::KeyPair object

create_security_group(%params)

This method creates a new security group. It takes the following parameters:

GroupName (required)

The name of the new group to create.

GroupDescription (required)

A short description of the new group.

Returns 1 if the group creation succeeds.

delete_key_pair(%params)

This method deletes a keypair. Takes the following parameter:

KeyName (required)

The name of the key to delete.

Returns 1 if the key was successfully deleted.

delete_security_group(%params)

This method deletes a security group. It takes the following parameter:

GroupName (required)

The name of the security group to delete.

Returns 1 if the delete succeeded.

deregister_image(%params)

This method will deregister an AMI. It takes the following parameter:

ImageId (required)

The image id of the AMI you want to deregister.

Returns 1 if the deregistering succeeded

describe_image_attributes(%params)

This method pulls a list of attributes for the image id specified

ImageId (required)

A scalar containing the image you want to get the list of attributes for.

Attribute (required)

A scalar containing the attribute to describe. Currently the only possible value for this is 'launchPermission'.

Returns a Net::Amazon::EC2::DescribeImageAttribute object

describe_images(%params)

This method pulls a list of the AMIs which can be run. The list can be modified by passing in some of the following parameters:

ImageId (optional)

Either a scalar or an array ref can be passed in, will cause just these AMIs to be 'described'

Owner (optional)

Either a scalar or an array ref can be passed in, will cause AMIs owned by the Owner's provided will be 'described'. Pass either account ids, or 'amazon' for all amazon-owned AMIs, or 'self' for your own AMIs.

ExecutableBy (optional)

Either a scalar or an array ref can be passed in, will cause AMIs executable by the account id's specified. Or 'self' for your own AMIs.

Returns an array ref of Net::Amazon::EC2::DescribeImagesResponse objects

describe_instances(%params)

This method pulls a list of the instances which are running or were just running. The list can be modified by passing in some of the following parameters:

InstanceId (optional)

Either a scalar or an array ref can be passed in, will cause just these instances to be 'described'

Returns an array ref of Net::Amazon::EC2::ReservationInfo objects

describe_key_pairs(%params)

This method describes the keypairs available on this account. It takes the following parameter:

KeyName (optional)

The name of the key to be described. Can be either a scalar or an array ref.

Returns an array ref of Net::Amazon::EC2::DescribeKeyPairsResponse objects

describe_security_groups(%params)

This method describes the security groups available to this account. It takes the following parameter:

GroupName (optional)

The name of the security group(s) to be described. Can be either a scalar or an array ref.

Returns an array ref of Net::Amazon::EC2::SecurityGroup objects

get_console_output(%params)

This method gets the output from the virtual console for an instance. It takes the following parameters:

InstanceId (required)

A scalar containing a instance id.

Returns a Net::Amazon::EC2::ConsoleOutput object.

modify_image_attribute(%params)

This method modifies attributes of an AMI on EC2. Right now the only attribute that can be modified is to grant launch permissions. It takes the following parameters:

ImageId (required)

The AMI to modify the attributes of.

Attribute (required)

The attribute you wish to modify, right now the attributes you can modify are launchPermission and productCodes

OperationType (required for launchPermission)

The operation you wish to perform on the attribute. Right now just 'add' and 'remove' are supported.

UserId (required for launchPermission)

User Id's you wish to add/remove from the attribute.

UserGroup (required for launchPermission)

Groups you wish to add/remove from the attribute. Currently there is only one User Group available 'all' for all Amazon EC2 customers.

ProductCode (required for productCodes)

Attaches a product code to the AMI. Currently only one product code can be assigned to the AMI. Once this is set it cannot be changed or reset.

Returns 1 if the modification succeeds.

reboot_instances(%params)

This method reboots an instance. It takes the following parameters:

InstanceId (required)

Instance Id of the instance you wish to reboot. Can be either a scalar or array ref of instances to reboot.

Returns 1 if the reboot succeeded.

register_image(%params)

This method registers an AMI on the EC2. It takes the following parameter:

ImageLocation (required)

The location of the AMI manifest on S3

Returns the image id of the new image on EC2.

reset_image_attribute(%params)

This method resets an attribute for an AMI to its default state (NOTE: product codes cannot be reset). It takes the following parameters:

ImageId (required)

The image id of the AMI you wish to reset the attributes on.

Attribute (required)

The attribute you want to reset. Right now the only attribute which can be modified is launchPermission.

Returns 1 if the attribute reset succeeds.

revoke_security_group_ingress(%params)

This method revoke permissions to a security group. It takes the following parameters:

GroupName (required)

The name of the group to revoke security rules from.

SourceSecurityGroupName (requred when revoking a user and group together)

Name of the group to revoke access from.

SourceSecurityGroupOwnerId (required when revoking a user and group together)

Owner of the group to revoke access from.

IpProtocol (required when revoking access from a CIDR)

IP Protocol of the rule you are revoking access from (TCP, UDP, or ICMP)

FromPort (required when revoking access from a CIDR)

Beginning of port range to revoke access from.

ToPort (required when revoking access from a CIDR)

End of port range to revoke access from.

CidrIp (required when revoking access from a CIDR)

The CIDR IP space we are revoking access from.

Revoking a rule can be done in two ways: revoking a source group name + source group owner id, or, by Protocol + start port + end port + CIDR IP. The two are mutally exclusive.

Returns 1 if rule is revoked successfully.

run_instances(%params)

This method will start instance(s) of AMIs on EC2. The parameters indicate which AMI to instantiate and how many / what properties they have:

ImageId (required)

The image id you want to start an instance of.

MinCount (required)

The minimum number of instances to start.

MaxCount (required)

The maximum number of instances to start.

KeyName (optional)

The keypair name to associate this instance with. If omitted, will use your default keypair.

SecurityGroup (optional)

An scalar or array ref. Will associate this instance with the group names passed in. If omitted, will be associated with the default security group.

UserData (optional)

Optional data to pass into the instance being started. Needs to be base64 encoded.

AddressingType (optional)

Optional addressing scheme to launch the instance. If passed in it should have a value of either "direct" or "public".

instanceType (optional)

Specifies the type of instance to start. The options are:

m1.small (default)

1 EC2 Compute Unit (1 virtual core with 1 EC2 Compute Unit). 32-bit, 1.7GB RAM, 160GB disk

m1.large

4 EC2 Compute Units (2 virtual core with 2 EC2 Compute Units each). 64-bit, 7.5GB RAM, 850GB disk

m1.xlarge

8 EC2 Compute Units (4 virtual core with 2 EC2 Compute Units each). 64-bit, 15GB RAM, 1690GB disk

Returns a Net::Amazon::EC2::ReservationInfo object

terminate_instances(%params)

This method shuts down instance(s) passed into it. It takes the following parameter:

InstanceId (required)

Either a scalar or an array ref can be passed in (containing instance ids)

Returns an array ref of Net::Amazon::EC2::TerminateInstancesResponse objects.

TODO

  • Add more documentation of the return type modules.

UPCOMING BACKWARDS INCOMPATIBILITY NOTICE

I've implemented the returned data structures as objects as opposed to data structures. In this release I am supporting both the deprecated and the new object-based returned data. In the next release (0.07) the data structures _WILL NO LONGER BE SUPPORTED_

TESTING

Set AWS_ACCESS_KEY_ID and SECRET_ACCESS_KEY environment variables to run the live tests. Note: because the live tests start an instance (and kill it) in both the tests and backwards compat tests there will be 2 hours of machine instance usage charges (since there are 2 instances started) which as of Feb 15th, 2008 costs a total of $0.20 USD

AUTHOR

Jeff Kim <jkim@chosec.com>

COPYRIGHT

Copyright (c) 2006-2008 Jeff Kim. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

Amazon EC2 API: http://docs.amazonwebservices.com/AWSEC2/2007-08-29/DeveloperGuide/