LibVM-EC2-Perl

Simple version of Perl Amazon EC2 modules that supports the tag API

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This is an interface to Amazon EC2 REST tools that follows the 2014-10-01 API. I created it because I needed access to the Tag and TagSet interfaces, and neither euca2ools nor Net::Amazon::EC2 provided this functionality. Support for the following services are complete:

Elastic Compute Cloud (EC2) Virtual Private Cloud (VPC) Elastic Load Balancing (ELB) and Autoscaling Relational Database Service (RDS)

The module is designed to work in a standard procedural manner, as well as in an event-driven application using the AnyEvent framework.

The following code illustrates the object-oriented features of the module:

get new EC2 object

my $ec2 = VM::EC2->new(-access_key => 'access key id', -secret_key => 'aws_secret_key', -endpoint => 'http://ec2.amazonaws.com');

fetch an image by its ID

my $image = $ec2->describe_images('ami-12345');

get some information about the image

my $architecture = $image->architecture; my $description = $image->description; my @devices = $image->blockDeviceMapping; for my $d (@devices) { print $d->deviceName,"\n"; print $d->snapshotId,"\n"; print $d->volumeSize,"\n"; }

run two instances

my @instances = $image->run_instances(-key_name =>'My_key', -security_group=>'default', -min_count =>2, -instance_type => 't1.micro') or die $ec2->error_str;

wait for both instances to reach "running" or other terminal state

$ec2->wait_for_instances(@instances);

print out both instance's current state and DNS name

for my $i (@instances) { my $status = $i->current_status; my $dns = $i->dnsName; print "$i: [$status] $dns\n"; }

tag both instances with Role "server"

foreach (@instances) {$_->add_tag(Role=>'server');

stop both instances

foreach (@instances) {$_->stop}

$ec2->wait_for_instances(@instances); # wait till they stop

create an image from both instance, tag them, and make them public

for my $i (@instances) { my $img = $i->create_image("Autoimage from $i","Test image"); $img->add_tags(Name => "Autoimage from $i", Role => 'Server', Status=> 'Production'); $img->make_public(1); }

Development and bug reports

This module is supported using GitHub at https://github.com/lstein/LibVM-EC2-Perl. To report a bug please open the Issues tag and file a bug report using the "New Issue" button.

To contribute to development of this module, please obtain a github account for yourself and then either:

  1. Fork a copy of the repository, make your changes against this repository, and send a pull request to me to incorporate your changes.

  2. Contact me by email and ask for push privileges on the repository.

See http://help.github.com/ for help getting started.

Credits

Many thanks to Lance Kinley, who contributed support for Network ACLs, VPC VPNs, Elastic Load Balancing, RDS, and many smaller feature enhancements as well as bug and documentation fixes.

Author

Lincoln D. Stein [email protected] 13 September 2012