Support multiple EBS volume types & set default to less-expensive gp3…

…. PR cloudposse#77
Cyber-Duck · Apr 3, 2023 · 401d2f1 · 401d2f1
1 parent 7b82ee0
commit 401d2f1
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diff --git a/main.tf b/main.tf
@@ -84,6 +84,7 @@ resource "aws_instance" "default" {
     content {
       encrypted             = var.ebs_block_device_encrypted
       volume_size           = var.ebs_block_device_volume_size
+      volume_type           = var.root_block_device_volume_type
       delete_on_termination = var.ebs_delete_on_termination
       device_name           = var.ebs_device_name
     }

diff --git a/variables.tf b/variables.tf
@@ -56,6 +56,16 @@ variable "root_block_device_volume_size" {
   description = "The volume size (in GiB) to provision for the root block device. It cannot be smaller than the AMI it refers to."
 }
 
+variable "root_block_device_volume_type" {
+  type        = string
+  default     = "gp3"
+  description = "The volume type for the EBS root volume"
+  validation {
+    condition = contains(["standard", "gp2", "gp3", "io1", "io2", "sc1", "st1"], var.root_block_device_volume_type)
+    error_message = "The root volume must specify a supported EBS type"
+  }
+}
+
 variable "disable_api_termination" {
   type        = bool
   description = "Enable EC2 Instance Termination Protection"