enable sizing of ebs volume

main.tf

@@ -43,6 +43,14 @@ resource "aws_launch_template" "this" {
   vpc_security_group_ids = ["${aws_security_group.this.id}"]
   tags                   = "${merge(map("Name", "${var.env}-ecs-windows"), var.tags)}"
 
+  block_device_mappings {
+    device_name = "${var.sized_block_device}"
+
+    ebs {
+      volume_size = "${var.ec2_disk_size}"
+    }
+  }
+
   iam_instance_profile {
     name = "${aws_iam_instance_profile.this.name}"
   }

variables.tf

@@ -31,6 +31,16 @@ variable "ami_name_filter" {
   default     = "Windows_Server-2016-English-Full-ECS_Optimized*"
 }
 
+variable "sized_block_device" {
+  description = "(optional) Name of the block device that the launch template will size"
+  default     = "/dev/sda1"
+}
+
+variable "ec2_disk_size" {
+  description = "(optional) Size of the root volume for your EC2 container instances"
+  default     = "50"
+}
+
 variable "min_size" {
   description = "(optional) Minimum node count for ASG"
   default     = "2"