gem 'rackspace-scaling'

$ bundle

$ gem install rackspace-scaling

auth = Rackspace::Scaling::Authentication.new('account_name', 'api_key')

lb = Rackspace::Scaling::LoadBalancerOperation.new(auth, 'DFW')

#list all load balancers
puts lb.list

#list all nodes attached to a load balancer
puts lb.nodes(12345)

#Add a node to a load balancer, defaults to port 80, can be overriden with the :port option
puts lb.add_node(:load_balancer_id => 12345, :node_ip => 'internal or external ip')

#remove a node
puts lb.remove_node(:load_balancer_id => 12345, :node_id => 67890)

srv = Rackspace::Scaling::ServerOperation.new(auth, 'DFW')

# lists all the available images you can create servers with
srv.list_images

#list flavours (sizes) of machines you can spin up
srv.list_flavors

#get the status for a specific instance
srv.status('server guid')

#create a new server, required parameters are :image_id, :flavor_id, and :name
puts = srv.create(:flavor_id => '2', :image_id => 'guid', :name => 'fooserver')

#destroy a server
puts srv.destroy('server-guid')

rackspace_scale_up --api-key myapikey --login mylogin -l 12345 -i server-image-name -n 2

rackspace_scale_down --api-key myapikey --login mylogin -l 12345 -n 2