{
   "Type" : "AWS::AutoScaling::LaunchConfiguration",
   "Properties" : {
      "KeyName" : { "Ref" : "KeyName" },
      "ImageId" : "ami-7430ba44",
      "UserData" : { "Fn::Base64" : { "Ref" : "WebServerPort" } },
      "SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
      "InstanceType" : "m1.large",
      "EbsOptimized" : "true"
   }
}