Add variables for fargate spot providers (#23)

main.tf

@@ -39,6 +39,9 @@ module "cluster" {
   name                              = var.name
   link_ecs_to_asg_capacity_provider = var.link_ecs_to_asg_capacity_provider
   asg_arn                           = module.autoscaling_group.autoscaling_group_arn
+
+  default_capacity_provider_strategy = var.default_capacity_provider_strategy
+  capacity_providers                 = var.capacity_providers
 }
 
 module "service" {

variables.tf

@@ -277,3 +277,15 @@ variable "task_placement_constraints" {
   }))
   default = []
 }
+
+variable "capacity_providers" {
+  description = "List of short names of one or more capacity providers to associate with the cluster. Valid values also include FARGATE and FARGATE_SPOT."
+  type        = list(string)
+  default     = []
+}
+
+variable "default_capacity_provider_strategy" {
+  description = "The capacity provider strategy to use by default for the cluster. Can be one or more."
+  type        = list(map(any))
+  default     = []
+}