feat: Support Valkey (#26)

Author: magreenbaum

README.md

@@ -268,6 +268,86 @@ module "elasticache" {
 }
 ```
 
+### Serverless Cache
+
+```hcl
+module "elasticache" {
+  source = "terraform-aws-modules/elasticache/aws//modules/serverless-cache"
+
+  engine     = "redis"
+  cache_name = "example-serverless-cache"
+
+  cache_usage_limits = {
+    data_storage = {
+      maximum = 2
+    }
+    ecpu_per_second = {
+      maximum = 1000
+    }
+  }
+
+  daily_snapshot_time  = "22:00"
+  description          = "example-serverless-cache serverless cluster"
+  kms_key_id           = aws_kms_key.this.arn
+  major_engine_version = "7"
+  security_group_ids   = [module.sg.security_group_id]
+
+  snapshot_retention_limit = 7
+  subnet_ids               = module.vpc.private_subnets
+
+  user_group_id = module.cache_user_group.group_id
+}
+```
+
+### Valkey Replication Group
+
+```hcl
+module "elasticache" {
+  source = "terraform-aws-modules/elasticache/aws"
+
+  replication_group_id = local.name
+
+  engine         = "valkey"
+  engine_version = "7.2"
+  node_type      = "cache.t4g.small"
+
+  transit_encryption_enabled = true
+  auth_token                 = "PickSomethingMoreSecure123!"
+  maintenance_window         = "sun:05:00-sun:09:00"
+  apply_immediately          = true
+
+  # Security Group
+  vpc_id = module.vpc.vpc_id
+  security_group_rules = {
+    ingress_vpc = {
+      # Default type is `ingress`
+      # Default port is based on the default engine port
+      description = "VPC traffic"
+      cidr_ipv4   = module.vpc.vpc_cidr_block
+    }
+  }
+
+  # Subnet Group
+  subnet_group_name        = local.name
+  subnet_group_description = "Valkey replication group subnet group"
+  subnet_ids               = module.vpc.private_subnets
+
+  # Parameter Group
+  create_parameter_group      = true
+  parameter_group_name        = local.name
+  parameter_group_family      = "valkey7"
+  parameter_group_description = "Valkey replication group parameter group"
+  parameters = [
+    {
+      name  = "latency-tracking"
+      value = "yes"
+    }
+  ]
+
+  tags = local.tags
+}
+```
+
 ## Examples
 
 Examples codified under the [`examples`](https://github.com/terraform-aws-modules/terraform-aws-elasticache/tree/master/examples) are intended to give users references for how to use the module(s) as well as testing/validating changes to the source code of the module. If contributing to the project, please be sure to make any appropriate updates to the relevant examples to allow maintainers to test your changes and to keep the examples up to date for users. Thank you!
@@ -277,21 +357,23 @@ Examples codified under the [`examples`](https://github.com/terraform-aws-module
 - [Redis Cluster Mode](https://github.com/terraform-aws-modules/terraform-aws-elasticache/tree/master/examples/redis-cluster-mode)
 - [Redis Global Replication Group](https://github.com/terraform-aws-modules/terraform-aws-elasticache/tree/master/examples/redis-global-replication-group)
 - [Redis Replication Group](https://github.com/terraform-aws-modules/terraform-aws-elasticache/tree/master/examples/redis-replication-group)
+- [Serverless Cache](https://github.com/terraform-aws-modules/terraform-aws-elasticache/tree/master/examples/serverless-cache)
+- [Valkey Replication Group](https://github.com/terraform-aws-modules/terraform-aws-elasticache/tree/master/examples/valkey-replication-group)
 
 <!-- BEGIN_TF_DOCS -->
 ## Requirements
 
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.71 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.73 |
 | <a name="requirement_random"></a> [random](#requirement\_random) | >= 3.0 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.71 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.73 |
 | <a name="provider_random"></a> [random](#provider\_random) | >= 3.0 |
 
 ## Modules
@@ -322,7 +404,7 @@ No modules.
 | <a name="input_at_rest_encryption_enabled"></a> [at\_rest\_encryption\_enabled](#input\_at\_rest\_encryption\_enabled) | Whether to enable encryption at rest | `bool` | `true` | no |
 | <a name="input_auth_token"></a> [auth\_token](#input\_auth\_token) | The password used to access a password protected server. Can be specified only if `transit_encryption_enabled = true` | `string` | `null` | no |
 | <a name="input_auth_token_update_strategy"></a> [auth\_token\_update\_strategy](#input\_auth\_token\_update\_strategy) | Strategy to use when updating the `auth_token`. Valid values are `SET`, `ROTATE`, and `DELETE`. Defaults to `ROTATE` | `string` | `null` | no |
-| <a name="input_auto_minor_version_upgrade"></a> [auto\_minor\_version\_upgrade](#input\_auto\_minor\_version\_upgrade) | Specifies whether minor version engine upgrades will be applied automatically to the underlying Cache Cluster instances during the maintenance window. Only supported for engine type `redis` and if the engine version is 6 or higher. Defaults to `true` | `bool` | `null` | no |
+| <a name="input_auto_minor_version_upgrade"></a> [auto\_minor\_version\_upgrade](#input\_auto\_minor\_version\_upgrade) | Specifies whether minor version engine upgrades will be applied automatically to the underlying Cache Cluster instances during the maintenance window. Only supported for engine type `redis` and `valkey` and if the engine version is 6 or higher. Defaults to `true` | `bool` | `null` | no |
 | <a name="input_automatic_failover_enabled"></a> [automatic\_failover\_enabled](#input\_automatic\_failover\_enabled) | Specifies whether a read-only replica will be automatically promoted to read/write primary if the existing primary fails. If true, Multi-AZ is enabled for this replication group. If false, Multi-AZ is disabled for this replication group. Must be enabled for Redis (cluster mode enabled) replication groups | `bool` | `null` | no |
 | <a name="input_availability_zone"></a> [availability\_zone](#input\_availability\_zone) | Availability Zone for the cache cluster. If you want to create cache nodes in multi-az, use `preferred_availability_zones` instead | `string` | `null` | no |
 | <a name="input_az_mode"></a> [az\_mode](#input\_az\_mode) | Whether the nodes in this Memcached node group are created in a single Availability Zone or created across multiple Availability Zones in the cluster's region. Valid values for this parameter are `single-az` or `cross-az`, default is `single-az` | `string` | `null` | no |
@@ -339,13 +421,13 @@ No modules.
 | <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 |
+| <a name="input_engine"></a> [engine](#input\_engine) | Name of the cache engine to be used for this cache cluster. Valid values are `memcached`, `redis`, or `valkey` | `string` | `"redis"` | no |
 | <a name="input_engine_version"></a> [engine\_version](#input\_engine\_version) | Version number of the cache engine to be used. If not set, defaults to the latest version | `string` | `null` | no |
 | <a name="input_final_snapshot_identifier"></a> [final\_snapshot\_identifier](#input\_final\_snapshot\_identifier) | (Redis only) Name of your final cluster snapshot. If omitted, no final snapshot will be made | `string` | `null` | no |
 | <a name="input_global_replication_group_id"></a> [global\_replication\_group\_id](#input\_global\_replication\_group\_id) | The ID of the global replication group to which this replication group should belong | `string` | `null` | no |
 | <a name="input_ip_discovery"></a> [ip\_discovery](#input\_ip\_discovery) | The IP version to advertise in the discovery protocol. Valid values are `ipv4` or `ipv6` | `string` | `null` | no |
 | <a name="input_kms_key_arn"></a> [kms\_key\_arn](#input\_kms\_key\_arn) | The ARN of the key that you wish to use if encrypting at rest. If not supplied, uses service managed encryption. Can be specified only if `at_rest_encryption_enabled = true` | `string` | `null` | no |
-| <a name="input_log_delivery_configuration"></a> [log\_delivery\_configuration](#input\_log\_delivery\_configuration) | (Redis only) Specifies the destination and format of Redis SLOWLOG or Redis Engine Log | `any` | <pre>{<br/>  "slow-log": {<br/>    "destination_type": "cloudwatch-logs",<br/>    "log_format": "json"<br/>  }<br/>}</pre> | no |
+| <a name="input_log_delivery_configuration"></a> [log\_delivery\_configuration](#input\_log\_delivery\_configuration) | (Redis OSS or Valkey) Specifies the destination and format of Redis OSS/Valkey SLOWLOG or Redis OSS/Valkey Engine Log | `any` | <pre>{<br/>  "slow-log": {<br/>    "destination_type": "cloudwatch-logs",<br/>    "log_format": "json"<br/>  }<br/>}</pre> | no |
 | <a name="input_maintenance_window"></a> [maintenance\_window](#input\_maintenance\_window) | Specifies the weekly time range for when maintenance on the cache cluster is performed. The format is `ddd:hh24:mi-ddd:hh24:mi` (24H Clock UTC) | `string` | `null` | no |
 | <a name="input_multi_az_enabled"></a> [multi\_az\_enabled](#input\_multi\_az\_enabled) | Specifies whether to enable Multi-AZ Support for the replication group. If true, `automatic_failover_enabled` must also be enabled. Defaults to `false` | `bool` | `false` | no |
 | <a name="input_network_type"></a> [network\_type](#input\_network\_type) | The IP versions for cache cluster connections. Valid values are `ipv4`, `ipv6` or `dual_stack` | `string` | `null` | no |

examples/memcached-cluster/README.md

@@ -20,13 +20,13 @@ Note that this example may create resources which will incur monetary charges on
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.71 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.73 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.71 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.73 |
 
 ## Modules
 

examples/memcached-cluster/versions.tf

@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 5.71"
+      version = ">= 5.73"
     }
   }
 }

examples/redis-cluster-mode/README.md

@@ -22,13 +22,13 @@ Note that this example may create resources which will incur monetary charges on
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.71 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.73 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.71 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.73 |
 
 ## Modules
 

examples/redis-cluster-mode/versions.tf

@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 5.71"
+      version = ">= 5.73"
     }
   }
 }

examples/redis-cluster/README.md

@@ -20,13 +20,13 @@ Note that this example may create resources which will incur monetary charges on
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.71 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.73 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.71 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.73 |
 
 ## Modules
 

examples/redis-cluster/versions.tf

@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 5.71"
+      version = ">= 5.73"
     }
   }
 }

examples/redis-global-replication-group/README.md

@@ -24,14 +24,14 @@ Note that this example may create resources which will incur monetary charges on
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.71 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.73 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.71 |
-| <a name="provider_aws.euwest1"></a> [aws.euwest1](#provider\_aws.euwest1) | >= 5.71 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.73 |
+| <a name="provider_aws.euwest1"></a> [aws.euwest1](#provider\_aws.euwest1) | >= 5.73 |
 
 ## Modules
 

examples/redis-global-replication-group/versions.tf

@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 5.71"
+      version = ">= 5.73"
     }
   }
 }

examples/redis-replication-group-with-cluster-replica/README.md

@@ -20,13 +20,13 @@ Note that this example may create resources which will incur monetary charges on
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.71 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.73 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.71 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.73 |
 
 ## Modules