Bug fix for flattening empty map slice for Amazon EBS

juliosueiras · Sep 11, 2018 · 279a39d · 279a39d
1 parent 147602b
commit 279a39d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packer/data_source_json.go b/packer/data_source_json.go
@@ -428,7 +428,7 @@ func dataSourceJSONRead(d *schema.ResourceData, meta interface{}) error {
 				}
 
 				for f := range t {
-					if FlattenNames[f] && t[f] != nil {
+					if FlattenNames[f] && t[f] != nil && len(t[f].([]interface{})) != 0 {
 						tempBlock := t[f].([]interface{})[0]
 						t[f] = tempBlock
 					} else if SpecialNames[f] && len(t[f].([]interface{})) != 0 && BlockNames[f] {