lib/ropenstack/compute.rb
def servers(id)
      endpoint = "/servers"
      unless id.nil?
        endpoint = endpoint + "/" + id
      end
      return get_request(address(endpoint), @token)
    end
def servers(id)
      endpoint = "/servers"
      unless id.nil?
        endpoint = endpoint + "/" + id
      end
      return get_request(address(endpoint), @token)
    end
Gets a list of servers from OpenStack

 :call-seq:
   servers(id) => A single server with the id matching the parameter
   servers() => All servers visible to the tenant making the request