chef assign elastic ip to instance

Question

I am using a custom bash script to spin up/down EC2 instances as needed. The script creates the instance similar to: knife ec2 server create --config .chef/knife.rb with a few other parameters. It creates the instance fine but I want to be able to assign my elastic ip to the current active instance.

Short of sending the output to a text file, parsing the output for the IP and instance name, and then running ec2-associate-address -i $instancename $ipaddress is there a good way to do this programmatically?

I believe I'm over thinking this.

Answer 1

You might want to look at the Opscode "AWS" cookbook which contains a LWRP for attaching elastic IPs to AWS instances.

Answer 2

Found two answers. You can script your own setup using the Fog ruby gem:

gem install fog

Or follow the tutorial here with Perl:

http://www.krzywanski.net/archives/592