feat: Update Memcached cluster example

Author: bryantbiggs

README.md

@@ -69,7 +69,7 @@ No modules.
 | <a name="input_create_cluster"></a> [create\_cluster](#input\_create\_cluster) | Determines whether an ElastiCache cluster will be created or not | `bool` | `true` | no |
 | <a name="input_create_parameter_group"></a> [create\_parameter\_group](#input\_create\_parameter\_group) | Determines whether the ElastiCache parameter group will be created or not | `bool` | `false` | no |
 | <a name="input_create_replication_group"></a> [create\_replication\_group](#input\_create\_replication\_group) | Determines whether an ElastiCache replication group will be created or not | `bool` | `false` | no |
-| <a name="input_create_subnet_group"></a> [create\_subnet\_group](#input\_create\_subnet\_group) | Determines whether the Elasticache subnet group will be created or not | `bool` | `false` | no |
+| <a name="input_create_subnet_group"></a> [create\_subnet\_group](#input\_create\_subnet\_group) | Determines whether the Elasticache subnet group will be created or not | `bool` | `true` | no |
 | <a name="input_data_tiering_enabled"></a> [data\_tiering\_enabled](#input\_data\_tiering\_enabled) | Enables data tiering. Data tiering is only supported for replication groups using the `r6gd` node type. This parameter must be set to true when using `r6gd` nodes | `bool` | `null` | no |
 | <a name="input_description"></a> [description](#input\_description) | User-created description for the replication group | `string` | `null` | no |
 | <a name="input_engine"></a> [engine](#input\_engine) | Name of the cache engine to be used for this cache cluster. Valid values are `memcached` or `redis` | `string` | `"redis"` | no |

examples/complete-memcached-cluster/README.md

@@ -1,8 +1,6 @@
-# Complete AWS ElastiCache Example
+# ElastiCache example for Memcached cluster
 
-Configuration in this directory creates:
-
-- <XXX>
+Configuration in this directory creates set of ElastiCaChe resources including cluster, subnet group and parameter group.
 
 ## Usage
 

examples/complete-memcached-cluster/cluster.tf

@@ -6,7 +6,7 @@ data "aws_availability_zones" "available" {}
 
 locals {
   region = "us-east-1"
-  name   = "elasticache-ex-${basename(path.cwd)}"
+  name   = "ex-${basename(path.cwd)}"
 
   vpc_cidr = "10.0.0.0/16"
   azs      = slice(data.aws_availability_zones.available.names, 0, 3)
@@ -19,17 +19,46 @@ locals {
 }
 
 ################################################################################
-# elasticache Module
+# ElastiCache Module
 ################################################################################
 
-module "elasticache" {
-  source = "../.."
+module "elasticache_cluster" {
+  source = "../../"
 
-  create = false
+  cluster_id = local.name
+
+  engine          = "memcached"
+  engine_version  = "1.6"
+  node_type       = "cache.t4g.small"
+  num_cache_nodes = 2
+  az_mode         = "cross-az"
+
+  security_group_ids = []
+
+  # subnet group
+  subnet_group_name        = local.name
+  subnet_group_description = "${title(local.name)} subnet group"
+  subnet_ids               = module.vpc.private_subnets
+
+  maintenance_window = "sun:05:00-sun:09:00"
+  apply_immediately  = true
+
+  # parameter group
+  create_parameter_group      = true
+  parameter_group_name        = local.name
+  parameter_group_family      = "memcached1.6"
+  parameter_group_description = "${title(local.name)} parameter group"
+  parameters = [
+    {
+      name  = "idle_timeout"
+      value = 60
+    }
+  ]
 
   tags = local.tags
 }
 
+
 module "elasticache_disabled" {
   source = "../.."