feat: add input_storage rds variable (#1026)

modules/rds/README.md

@@ -217,6 +217,7 @@ Example - I want a new instance `rds-example-new` to be provisioned from a snaps
 | <a name="input_ssm_key_user"></a> [ssm\_key\_user](#input\_ssm\_key\_user) | The SSM key to save the user. See `var.ssm_path_format`. | `string` | `"admin/db_user"` | no |
 | <a name="input_stage"></a> [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |
 | <a name="input_storage_encrypted"></a> [storage\_encrypted](#input\_storage\_encrypted) | (Optional) Specifies whether the DB instance is encrypted. The default is false if not specified | `bool` | `true` | no |
+| <a name="input_storage_throughput"></a> [storage\_throughput](#input\_storage\_throughput) | The storage throughput value for the DB instance. Can only be set when `storage_type` is `gp3`. Cannot be specified if the `allocated_storage` value is below a per-engine threshold. | `number` | `null` | no |
 | <a name="input_storage_type"></a> [storage\_type](#input\_storage\_type) | One of 'standard' (magnetic), 'gp2' (general purpose SSD), or 'io1' (provisioned IOPS SSD) | `string` | `"standard"` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br>Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no |
 | <a name="input_tenant"></a> [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no |

modules/rds/main.tf

@@ -86,6 +86,7 @@ module "rds_instance" {
   skip_final_snapshot                   = var.skip_final_snapshot
   snapshot_identifier                   = var.snapshot_identifier
   storage_encrypted                     = var.storage_encrypted
+  storage_throughput                    = var.storage_throughput
   storage_type                          = var.storage_type
   subnet_ids                            = local.subnet_ids
   timezone                              = var.timezone

modules/rds/rds-variables.tf

@@ -108,6 +108,12 @@ variable "iops" {
   default     = 0
 }
 
+variable "storage_throughput" {
+  type        = number
+  description = "The storage throughput value for the DB instance. Can only be set when `storage_type` is `gp3`. Cannot be specified if the `allocated_storage` value is below a per-engine threshold."
+  default     = null
+}
+
 variable "allocated_storage" {
   type        = number
   description = "The allocated storage in GBs"