From 54a2a28890efa6808c3d1dc531f07ee88c307b86 Mon Sep 17 00:00:00 2001
From: Tim Hartmann <tfhartmann@gmail.com>
Date: Fri, 16 Mar 2018 14:39:08 -0400
Subject: [PATCH] Parameterizing EBS Block device

This should help help address #31
---
 README.md    | 1 +
 main.tf      | 2 +-
 variables.tf | 5 +++++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 4d360c0..d4a971e 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ Module Input Variables
 **NOTE About User Data:** The `user_data` parameter overwrites the `user_data` template used by this module, this will break some of the module features (e.g. `docker_storage_size`, `dockerhub_token`, and `dockerhub_email`). However, `additional_user_data_script` will concatenate additional data to the end of the current `user_data` script. It is recomended that you use `additional_user_data_script`. These two parameters are mutually exclusive - you can not pass both into this module and expect it to work.
 
 - `additional_user_data_script` - Additional `user_data` scripts content
+- `ebs_block_device` - EBS block devices to attach to the instance. (default: /dev/xvdcz)
 - `region` - AWS Region - defaults to us-east-1
 - `servers`  - Number of ECS Servers to start in the cluster - defaults to 1
 - `min_servers`  - Minimum number of ECS Servers to start in the cluster - defaults to 1
diff --git a/main.tf b/main.tf
index 45ab21c..99f1d01 100644
--- a/main.tf
+++ b/main.tf
@@ -38,7 +38,7 @@ resource "aws_launch_configuration" "ecs" {
   associate_public_ip_address = "${var.associate_public_ip_address}"
 
   ebs_block_device {
-    device_name           = "/dev/xvdcz"
+    device_name           = "${var.ebs_block_device}"
     volume_size           = "${var.docker_storage_size}"
     volume_type           = "gp2"
     delete_on_termination = true
diff --git a/variables.tf b/variables.tf
index b677fd8..9a12015 100644
--- a/variables.tf
+++ b/variables.tf
@@ -50,6 +50,11 @@ variable "enable_agents" {
   description = "Enable Consul Agent and Registrator tasks on each ECS Instance"
 }
 
+variable "ebs_block_device" {
+  default     = "/dev/xvdcz"
+  description = "EBS block devices to attach to the instance. (default: /dev/xvdcz)"
+}
+
 variable "extra_tags" {
   default = []
 }