fix: make the security group description configurable (#115)

* fix: make the security group description configurable

* Add null value in the variable description

* Auto Format
Co-authored-by: nitro <nitrocode@users.noreply.github.com>
Co-authored-by: cloudpossebot <11232728+cloudpossebot@users.noreply.github.com>

README.md

@@ -261,6 +261,7 @@ Available targets:
 | port | Redis port | `number` | `6379` | no |
 | regex\_replace\_chars | Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
 | replication\_group\_id | Replication group ID with the following constraints: <br>A name must contain from 1 to 20 alphanumeric characters or hyphens. <br> The first character must be a letter. <br> A name cannot end with a hyphen or contain two consecutive hyphens. | `string` | `""` | no |
+| security\_group\_description | The description for the security group. If this is changed, this will cause a create/destroy on the security group resource. Set this to `null` to maintain parity with releases <= `0.34.0`. | `string` | `"Security group for Elasticache Redis"` | no |
 | snapshot\_arns | A single-element string list containing an Amazon Resource Name (ARN) of a Redis RDB snapshot file stored in Amazon S3. Example: arn:aws:s3:::my\_bucket/snapshot1.rdb | `list(string)` | `[]` | no |
 | snapshot\_name | The name of a snapshot from which to restore data into the new node group. Changing the snapshot\_name forces a new resource. | `string` | `null` | no |
 | snapshot\_retention\_limit | The number of days for which ElastiCache will retain automatic cache cluster snapshots before deleting them. | `number` | `0` | no |

docs/terraform.md

@@ -78,6 +78,7 @@
 | port | Redis port | `number` | `6379` | no |
 | regex\_replace\_chars | Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
 | replication\_group\_id | Replication group ID with the following constraints: <br>A name must contain from 1 to 20 alphanumeric characters or hyphens. <br> The first character must be a letter. <br> A name cannot end with a hyphen or contain two consecutive hyphens. | `string` | `""` | no |
+| security\_group\_description | The description for the security group. If this is changed, this will cause a create/destroy on the security group resource. Set this to `null` to maintain parity with releases <= `0.34.0`. | `string` | `"Security group for Elasticache Redis"` | no |
 | snapshot\_arns | A single-element string list containing an Amazon Resource Name (ARN) of a Redis RDB snapshot file stored in Amazon S3. Example: arn:aws:s3:::my\_bucket/snapshot1.rdb | `list(string)` | `[]` | no |
 | snapshot\_name | The name of a snapshot from which to restore data into the new node group. Changing the snapshot\_name forces a new resource. | `string` | `null` | no |
 | snapshot\_retention\_limit | The number of days for which ElastiCache will retain automatic cache cluster snapshots before deleting them. | `number` | `0` | no |

main.tf

@@ -3,7 +3,7 @@
 #
 resource "aws_security_group" "default" {
   count       = module.this.enabled && var.use_existing_security_groups == false ? 1 : 0
-  description = "Security group for Elasticache Redis"
+  description = var.security_group_description
   vpc_id      = var.vpc_id
   name        = module.this.id
   tags        = module.this.tags

variables.tf

@@ -16,6 +16,12 @@ variable "allowed_security_groups" {
   description = "List of Security Group IDs that are allowed ingress to the cluster's Security Group created in the module"
 }
 
+variable "security_group_description" {
+  type        = string
+  description = "The description for the security group. If this is changed, this will cause a create/destroy on the security group resource. Set this to `null` to maintain parity with releases <= `0.34.0`."
+  default     = "Security group for Elasticache Redis"
+}
+
 variable "allowed_cidr_blocks" {
   type        = list(string)
   default     = []