infrastructure/terraform/modules/function/appserviceplan.tf

resource "azurerm_service_plan" "service_plan" {
  name                = "${var.function_name}-asp"
  location            = var.location
  resource_group_name = var.resource_group_name

  maximum_elastic_worker_count = 20
  os_type                      = "Linux"
  per_site_scaling_enabled     = false
  sku_name                     = var.function_sku
  worker_count                 = 1     # Update to '3' for production
  zone_balancing_enabled       = false # Update to 'true' for production
}