Add root volume configuration to variables and update locals for provisioning

Author: arnol377

parameters_and_secrets.tf

@@ -1,4 +1,3 @@
-
 locals {
   # Define a map of parameters for infrastructure provisioning.
   # This includes configurations like region, subnets, security group IDs, VPC ID, source AMI, and more.
@@ -15,7 +14,8 @@ locals {
     playbook           = var.playbook,                                                                                # Ansible playbook for configuration management.
     troubleshoot       = var.troubleshoot,                                                                            # Enable troubleshooting mode.
     # Mapping of volumes to attach to the instance.
-    volume_map = jsonencode(var.image_volume_mapping)
+    volume_map = jsonencode(var.image_volume_mapping),
+    root_volume = var.root_volume == null ? "" : jsonencode(var.root_volume),
 
     key_name = "${var.project_name}-deployer-key-${random_pet.keyname.id}" # KMS key ID for encryption.
     }, var.playbook == null ? {} : {

variables.tf

@@ -394,3 +394,18 @@ variable "instance_profile" {
   type    = string
   default = null
 }
+
+variable "root_volume" {
+  type = object({
+    device_name           = string
+    volume_size           = number
+    volume_type           = string
+    delete_on_termination = bool
+    encrypted             = optional(bool, false)
+    iops                  = optional(number, null)
+    throughput            = optional(number, null)
+    kms_key_id            = optional(string, null)
+  })
+  description = "Configuration for the root volume"
+  default     = null
+}