update jdcloud statebag to use pointers for config, to bring in line with other implementations

builder/jdcloud/builder.go

@@ -46,7 +46,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 	state := new(multistep.BasicStateBag)
 	state.Put("hook", hook)
 	state.Put("ui", ui)
-	state.Put("config", b.config)
+	state.Put("config", &b.config)
 
 	steps := []multistep.Step{
 

builder/jdcloud/step_create_instance.go

@@ -142,7 +142,7 @@ func (s *stepCreateJDCloudInstance) Cleanup(state multistep.StateBag) {
 
 func createElasticIp(state multistep.StateBag) (string, error) {
 
-	generalConfig := state.Get("config").(Config)
+	generalConfig := state.Get("config").(*Config)
 	regionId := generalConfig.RegionId
 	credential := core.NewCredentials(generalConfig.AccessKey, generalConfig.SecretKey)
 	vpcclient := vpcClient.NewVpcClient(credential)