{
   "Type" : "AWS::AutoScaling::LaunchConfiguration",
   "Properties" : {
      "KeyName" : { "Ref" : "KeyName" },
      "ImageId" : {
         "Fn::FindInMap" : [
            "AWSRegionArch2AMI",
            { "Ref" : "AWS::Region" },
            {
               "Fn::FindInMap" : [
                  "AWSInstanceType2Arch", { "Ref" : "InstanceType" }, "Arch"
               ]
            }
         ]
      },
      "UserData" : { "Fn::Base64" : { "Ref" : "WebServerPort" }},
      "SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
      "InstanceType" : { "Ref" : "InstanceType" },
      "BlockDeviceMappings" : [
         {
           "DeviceName" : "/dev/sda1",
           "Ebs" : { "VolumeSize" : "50", "VolumeType" : "io1", "Iops" : 200 } 
         },
         {
           "DeviceName" : "/dev/sdm",
           "Ebs" : { "VolumeSize" : "100", "DeleteOnTermination" : "true"}
         }
      ]
   }
}