# File lib/deltacloud/drivers/ec2/ec2_driver.rb, line 484
  def lb_register_instance(credentials, opts={})
    ec2 = new_client( credentials, :elb)
    safely do
      ec2.register_instances_with_load_balancer(:instances => [opts[:instance_id]],
        :load_balancer_name => opts[:id])
      load_balancer(credentials, :id => opts[:id])
    end
  end