fix: need to try/coalesce

Author: TheOutdoorProgrammer

autoscaler/autoscaler.tf

@@ -158,8 +158,8 @@ resource "azurerm_linux_function_app" "autoscaler" {
     AUTOSCALING_MAX_KILL         = var.autoscaling_configuration.max_terminate != null ? var.autoscaling_configuration.max_terminate : 1
     AUTOSCALING_SCALE_DOWN_DELAY = var.autoscaling_configuration.scale_down_delay != null ? var.autoscaling_configuration.scale_down_delay : 0
 
-    AZURE_AUTOSCALING_MIN_SIZE = coalesce(var.autoscaling_configuration.scale.min, -1)
-    AZURE_AUTOSCALING_MAX_SIZE = coalesce(var.autoscaling_configuration.scale.max, 5)
+    AZURE_AUTOSCALING_MIN_SIZE = coalesce(try(var.autoscaling_configuration.scale.min, null), -1)
+    AZURE_AUTOSCALING_MAX_SIZE = coalesce(try(var.autoscaling_configuration.scale.max, null), 5)
   }
 
   tags = merge(var.tags, {

vmss.tf

@@ -122,7 +122,7 @@ resource "azurerm_linux_virtual_machine_scale_set" "this" {
   location            = var.resource_group.location
   sku                 = var.vmss_sku
 
-  instances                       = coalesce(var.autoscaling_configuration.scale.min, var.non_autoscaled_vmss_instances, 2)
+  instances                       = coalesce(try(var.autoscaling_configuration.scale.min, null), var.non_autoscaled_vmss_instances, 2)
   admin_username                  = var.admin_username
   admin_password                  = var.admin_password
   disable_password_authentication = var.admin_password == null