update CloudFormation/Memcached.yaml.

CloudFormation/Memcached.yaml

@@ -3,8 +3,8 @@ Resources:
   cachegroupa:
     Type: 'AWS::ElastiCache::SubnetGroup'
     Properties:
-      CacheSubnetGroupName: cachegroupa
-      Description: cachegroupa
+      CacheSubnetGroupName: !Ref SubGroupName
+      Description: !Ref SubGroupName
       SubnetIds:
         - !Ref dbnet1id
         - !Ref dbnet2id
@@ -36,6 +36,9 @@ Parameters:
   ClusterName:
     Type: String
     Default: elasticache-memcached
+  SubGroupName:
+    Type: String
+    Default: elasticachegroupa
 Metadata:
   'AWS::CloudFormation::Designer':
     486b56bc-dec0-4b7b-8eef-f551f8311495:
@@ -59,4 +62,5 @@ Metadata:
       parent: 486b56bc-dec0-4b7b-8eef-f551f8311495
       embeds: []
       iscontainedinside:
+        - 486b56bc-dec0-4b7b-8eef-f551f8311495
         - 486b56bc-dec0-4b7b-8eef-f551f8311495