feat: integrate azure kubernetes node pool autoscaler feature

Author: Benjamin Bauer

main.tf

@@ -52,6 +52,9 @@ resource "azurerm_kubernetes_cluster" "k8s" {
     orchestrator_version        = var.default_node_pool_k8s_version
     zones                       = var.availability_zones
     temporary_name_for_rotation = var.temporary_name_for_rotation
+    enable_auto_scaling         = var.auto_scaling_enable
+    min_count                   = var.auto_scaling_min_node_count
+    max_count                   = var.auto_scaling_max_node_count
   }
 
   dynamic "api_server_access_profile" {

vars.tf

@@ -92,7 +92,24 @@ variable "node_pools" {
   }))
   default     = {}
   description = "Additional node pools to set up"
+}
+
+variable "auto_scaling_enable" {
+  type = bool
+  description = "Enable auto scaling of node pool"
+  default = false
+}
 
+variable "auto_scaling_min_node_count" {
+  type = string
+  description = "Enable auto scaling of node pool"
+  default = "1"
+}
+
+variable "auto_scaling_max_node_count" {
+  type = string
+  description = "Enable auto scaling of node pool"
+  default = "1"
 }
 
 variable "load_balancer_sku" {