Ruby library for accessing Amazon EC2

 A Ruby library for accessing the Amazon Web Services (AWS) APIs like:
  * Elastic Compute Cloud (EC2): provides resizable compute capacity via virtual
    machine set up and allocation.
  * Autoscaling: automatically scale your Amazon EC2 capacity up or down
  * Elastic Load Balancing (ELB): distributes application traffic across
    multiple Amazon EC2 instances
  * Relational Database Service (RDS): set up, operate, and scale MySQL instance
  * CloudWatch: provides monitoring for AWS like Amazon EC2.