remove key pair

main.tf

@@ -19,7 +19,7 @@ module "eks_cluster" {
   kubernetes_version                                        = var.kubernetes_version
   allowed_security_groups                                   = var.allowed_security_groups_cluster
   workers_security_group_ids                                = [module.eks_workers.security_group_id]
-  workers_security_group_count                              = 1
+  workers_security_group_count                              = var.workers_security_group_count
   allowed_cidr_blocks                                       = var.allowed_cidr_blocks_cluster
   enabled_cluster_log_types                                 = var.enabled_cluster_log_types
   public_access_cidrs                                       = var.public_access_cidrs

modules/node-group/main.tf

@@ -64,7 +64,7 @@ resource "aws_eks_node_group" "default" {
 
   launch_template {
     name    = each.value.node_group_name
-    version = 1
+    version = each.value.launch_template_version
   }
 
   depends_on = [aws_launch_template.default]
@@ -87,7 +87,6 @@ resource "aws_launch_template" "default" {
   name                   = each.value.node_group_name
   update_default_version = true
   image_id               = var.ami_release_version
-  key_name               = var.key_name
 
   dynamic "tag_specifications" {
     for_each = var.resources_to_tag

modules/node-group/variables.tf

@@ -164,6 +164,7 @@ variable "node_groups" {
     node_group_min_size       = number
     node_group_capacity_type  = string
     node_group_volume_type    = string
+    launch_template_version   = number
   }))
 }
 

variables.tf

@@ -156,6 +156,12 @@ variable "cpu_utilization_high_threshold_percent" {
   description = "Worker nodes AutoScaling Group CPU utilization high threshold percent."
 }
 
+variable "workers_security_group_count" {
+  type        = number
+  default     = 0
+  description = "Count of the worker Security Groups. Needed to prevent Terraform error `count can't be computed`."
+}
+
 variable "cpu_utilization_low_threshold_percent" {
   type        = number
   default     = 20
@@ -557,6 +563,7 @@ variable "node_groups" {
     node_group_min_size       = number
     node_group_capacity_type  = string
     node_group_volume_type    = string
+    launch_template_version   = number
   }))
   default = {
     tools = {
@@ -572,6 +579,7 @@ variable "node_groups" {
       node_group_min_size       = 1
       node_group_capacity_type  = "ON_DEMAND"
       node_group_volume_type    = "gp2"
+      launch_template_version   = 1
     }
   }
 }