反序列化AWS结构到字符串映射

Question

我试图在go中反序列化aws结构，以便我可以传入参数并基于这些参数输出值；例如；

   12 func DisplayResults(conf *config.Configuration,
           regionalData []*ec2.DescribeInstancesOutput) {

   13   log.Debug("Displaying results")
   14   log.Debug("Table view [%v]", conf.Display)
   15     
   16   for _, rv := range regionalData {
   17     for _, reservation := range rv.Reservations {
   18       for _, instance := range reservation.Instances {
   19         var i map[string]interface{}                                                                                                                                                                          
   20         json.Unmarshal(instance, i)
   21       }
   22     }
   23   }
   24 }

我也尝试使用：

"github.com/fatih/structs"

   18         i := structs.Map(instance)                                                                                                                                                                        
   19         log.Print("%v", i)

但是，我认为我需要以某种方式取消对结构的引用，因为我的输出看起来像这样：

RamdiskId:<nil> SriovNetSupport:<nil> VpcId:0xc420321ba0 State:map[Code:0xc42031ea08 Name:0xc420321890] VirtualizationType:0xc420321b90 CapacityReservationId:<nil> ClientToken:0xc420321560 HibernationOptions:map[Configured:0xc42031e96b] IamInstanceProfile:map[Arn:0xc4203215a0 Id:0xc4203215b0] ImageId:0xc4203215c0

我也尝试过：

~  10 func DisplayResults(conf *config.Configuration, regionalData []*ec2.DescribeInstancesOutput, parameters []string) {                                                                                       
   11   log.Debug("Displaying results")
   12   log.Debug("Table view [%v]", conf.Display)
   13 
   14   for _, rv := range regionalData {
   15     for _, reservation := range rv.Reservations {
   16       for _, instance := range reservation.Instances {
~  17         y := deref(instance)
~  18 
+  19         log.Print("%v", y["InstanceId"])
   20       }
   21     } 
   22   } 
   23 } 
   24 
~  25 func deref(instance *ec2.Instance) ec2.Instance {
~  26   var i ec2.Instance
   27   
~  28   x := &i
+  29   *x = *instance
   30   
~  31   return i
   32 }