{
   "Type" : "AWS::RDS::DBInstance",
   "Properties" : {
      "DBName" : { "Ref" : "DBName" },
      "AllocatedStorage" : { "Ref" : "DBAllocatedStorage" },
      "DBInstanceClass" : { "Ref" : "DBInstanceClass" },
      "Engine" : "MySQL",
      "EngineVersion" : "5.5",
      "MasterUsername" : { "Ref" : "DBUser" },
      "MasterUserPassword" : { "Ref" : "DBPassword" },
      "Tags" : [ { "Key" : "Name", "Value" : "My SQL Database" } ]
   }
}