KUBE-543: Update gke cluster modulew

main.tf

@@ -4,6 +4,8 @@ resource "castai_gke_cluster" "castai_cluster" {
   name                       = var.gke_cluster_name
   delete_nodes_on_disconnect = var.delete_nodes_on_disconnect
   credentials_json           = var.gke_credentials
+  client_service_account     = var.client_service_account_email
+  cast_service_account       = "to-be-computed"
 }
 
 resource "castai_node_configuration" "this" {
@@ -144,8 +146,8 @@ resource "castai_node_template" "this" {
 resource "castai_workload_scaling_policy" "this" {
   for_each = { for k, v in var.workload_scaling_policies : k => v }
 
-  name              = try(each.value.name, each.key)
-  cluster_id        = castai_gke_cluster.castai_cluster.id
+  name       = try(each.value.name, each.key)
+  cluster_id = castai_gke_cluster.castai_cluster.id
 
   apply_type        = try(each.value.apply_type, "DEFERRED")
   management_option = try(each.value.management_option, "READ_ONLY")

outputs.tf

@@ -17,3 +17,8 @@ output "castai_node_templates" {
     for k, v in castai_node_template.this : v.name => v.name
   }
 }
+
+output "castai_service_account" {
+  description = "Service account used by CAST AI to manage the cluster"
+  value       = castai_gke_cluster.castai_cluster.cast_service_account
+}

variables.tf

@@ -226,4 +226,10 @@ variable "workload_autoscaler_values" {
   description = "List of YAML formatted string with cluster-workload-autoscaler values"
   type        = list(string)
   default     = []
+}
+
+variable "client_service_account_email" {
+    description = "Email of the service account used to impersonate the client"
+    type        = string
+    default     = ""
 }