# File lib/as/right_as_interface.rb, line 354
    def create_launch_configuration(launch_configuration_name, image_id, instance_type, options={})
      request_hash = { 'LaunchConfigurationName' => launch_configuration_name,
                       'ImageId'                 => image_id,
                       'InstanceType'            => instance_type }
      request_hash.merge!(amazonize_list('SecurityGroups.member',      options[:security_groups]))       unless options[:security_groups].blank?
      request_hash.merge!(amazonize_block_device_mappings(options[:block_device_mappings], 'BlockDeviceMappings.member'))
      request_hash['KeyName']   = options[:key_name]   if options[:key_name]
      request_hash['UserData']  = Base64.encode64(options[:user_data]).delete("\n") unless options[:user_data].blank? if options[:user_data]
      request_hash['KernelId']  = options[:kernel_id]  if options[:kernel_id]
      request_hash['RamdiskId'] = options[:ramdisk_id] if options[:ramdisk_id]
      link = generate_request("CreateLaunchConfiguration", request_hash)
      request_info(link, RightHttp2xxParser.new(:logger => @logger))
    end