Align defaults

Author: dimamo5

images/linux-al2023/github_agent.linux.pkr.hcl

@@ -13,12 +13,12 @@ variable "runner_version" {
 }
 
 variable "architecture" {
-  description = "The architecture of the runner. Supported values are 'x86-64' and 'arm64'"
+  description = "The architecture of the runner. Supported values are 'x64' and 'arm64'"
   type        = string
-  default     = "x86_64"
+  default     = "x64"
   validation {
-    condition     = contains(["arm64", "x86_64"], var.architecture)
-    error_message = "`lambda_architecture` value is not valid, valid values are: `arm64` and `x86_64`."
+    condition     = contains(["arm64", "x64"], var.architecture)
+    error_message = "`architecture` value is not valid, valid values are: `arm64` and `x64`."
   }
 }
 
@@ -49,7 +49,7 @@ variable "associate_public_ip_address" {
 variable "instance_type" {
   description = "The instance type Packer will use for the builder"
   type        = string
-  default     = "t4g.small"
+  default     = null
 }
 
 variable "iam_instance_profile" {
@@ -109,12 +109,12 @@ data "http" github_runner_release_json {
 
 locals {
   runner_version = coalesce(var.runner_version, trimprefix(jsondecode(data.http.github_runner_release_json.body).tag_name, "v"))
-  instance_type   = coalesce(var.instance_type, var.architecture == "arm64" ? "t4g.small" : "m3.medium")
+  instance_type   = coalesce(var.instance_type, var.architecture == "arm64" ? "t4g.medium" : "m3.medium")
 }
 
 source "amazon-ebs" "githubrunner" {
   ami_name                                  = "github-runner-al2023-${var.architecture}-${formatdate("YYYYMMDDhhmm", timestamp())}"
-  instance_type                             = var.instance_type
+  instance_type                             = local.instance_type
   iam_instance_profile                       = var.iam_instance_profile
   region                                    = var.region
   security_group_id                         = var.security_group_id
@@ -124,7 +124,7 @@ source "amazon-ebs" "githubrunner" {
 
   source_ami_filter {
     filters = {
-      name                = "al2023-ami-2023.*-kernel-6.*-${var.architecture}"
+      name                = "al2023-ami-2023.*-kernel-6.*-${var.architecture == "x64" ? "x86_64" : var.architecture}"
       root-device-type    = "ebs"
       virtualization-type = "hvm"
     }