feat: add persistence configuration for Redis (#125)

README.md

@@ -40,6 +40,7 @@ module "memorystore" {
 | maintenance\_policy | The maintenance policy for an instance. | <pre>object({<br>    day = string<br>    start_time = object({<br>      hours   = number<br>      minutes = number<br>      seconds = number<br>      nanos   = number<br>    })<br>  })</pre> | `null` | no |
 | memory\_size\_gb | Redis memory size in GiB. Defaulted to 1 GiB | `number` | `1` | no |
 | name | The ID of the instance or a fully qualified identifier for the instance. | `string` | n/a | yes |
+| persistence\_config | The Redis persistence configuration parameters. https://cloud.google.com/memorystore/docs/redis/reference/rest/v1/projects.locations.instances#persistenceconfig | <pre>object({<br>    persistence_mode    = string<br>    rdb_snapshot_period = string<br>  })</pre> | `null` | no |
 | project | The ID of the project in which the resource belongs to. | `string` | n/a | yes |
 | read\_replicas\_mode | Read replicas mode. https://cloud.google.com/memorystore/docs/redis/reference/rest/v1/projects.locations.instances#readreplicasmode | `string` | `"READ_REPLICAS_DISABLED"` | no |
 | redis\_configs | The Redis configuration parameters. See [more details](https://cloud.google.com/memorystore/docs/redis/reference/rest/v1/projects.locations.instances#Instance.FIELDS.redis_configs) | `map(any)` | `{}` | no |

examples/redis/main.tf

@@ -28,4 +28,8 @@ module "memstore" {
   transit_encryption_mode = "SERVER_AUTHENTICATION"
   authorized_network      = module.test-vpc-module.network_id
   memory_size_gb          = 1
+  persistence_config = {
+    persistence_mode    = "RDB"
+    rdb_snapshot_period = "ONE_HOUR"
+  }
 }

main.tf

@@ -57,6 +57,14 @@ resource "google_redis_instance" "default" {
       }
     }
   }
+
+  dynamic "persistence_config" {
+    for_each = var.persistence_config != null ? [var.persistence_config] : []
+    content {
+      persistence_mode    = persistence_config.value["persistence_mode"]
+      rdb_snapshot_period = persistence_config.value["rdb_snapshot_period"]
+    }
+  }
 }
 
 module "enable_apis" {

variables.tf

@@ -141,9 +141,17 @@ variable "maintenance_policy" {
   default = null
 }
 
-
 variable "customer_managed_key" {
   description = "Default encryption key to apply to the Redis instance. Defaults to null (Google-managed)."
   type        = string
   default     = null
 }
+
+variable "persistence_config" {
+  description = "The Redis persistence configuration parameters. https://cloud.google.com/memorystore/docs/redis/reference/rest/v1/projects.locations.instances#persistenceconfig"
+  type = object({
+    persistence_mode    = string
+    rdb_snapshot_period = string
+  })
+  default = null
+}

versions.tf

@@ -20,7 +20,7 @@ terraform {
 
     google = {
       source  = "hashicorp/google"
-      version = ">= 4.28.0, < 5.0"
+      version = ">= 4.38.0, < 5.0"
     }
   }