add new variable to multi-runner

Author: npalm

modules/multi-runner/variables.tf

@@ -634,8 +634,12 @@ variable "instance_termination_watcher" {
   EOF
 
   type = object({
-    enable            = optional(bool, false)
-    enable_metrics    = optional(string, null) # deprecated
+    enable         = optional(bool, false)
+    enable_metrics = optional(string, null) # deprecated
+    features = optional(object({
+      enable_spot_termination_handler              = optional(bool, true)
+      enable_spot_termination_notification_watcher = optional(bool, true)
+    }), {})
     memory_size       = optional(number, null)
     s3_key            = optional(string, null)
     s3_object_version = optional(string, null)

modules/termination-watcher/notification.tf

@@ -0,0 +1,6 @@
+module "termination_notification" {
+  count  = var.config.features.enable_spot_termination_notification_watcher ? 1 : 0
+  source = "./notification"
+
+  config = local.config
+}