From 71060c82fe57c9723bc9a8263e951324d2a4068f Mon Sep 17 00:00:00 2001
From: Michael Miller <icy.arctic.fox@gmail.com>
Date: Mon, 23 Apr 2018 15:44:18 -0600
Subject: [PATCH] Ability to specify additional security groups

---
 modules/consul-cluster/main.tf      | 2 +-
 modules/consul-cluster/variables.tf | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/modules/consul-cluster/main.tf b/modules/consul-cluster/main.tf
index 1ec17a71..10cf2a80 100644
--- a/modules/consul-cluster/main.tf
+++ b/modules/consul-cluster/main.tf
@@ -56,7 +56,7 @@ resource "aws_launch_configuration" "launch_configuration" {
 
   iam_instance_profile        = "${aws_iam_instance_profile.instance_profile.name}"
   key_name                    = "${var.ssh_key_name}"
-  security_groups             = ["${aws_security_group.lc_security_group.id}"]
+  security_groups             = ["${concat(list(aws_security_group.lc_security_group.id), var.additional_security_group_ids)}"]
   placement_tenancy           = "${var.tenancy}"
   associate_public_ip_address = "${var.associate_public_ip_address}"
 
diff --git a/modules/consul-cluster/variables.tf b/modules/consul-cluster/variables.tf
index 7b903dd4..5bee0b25 100644
--- a/modules/consul-cluster/variables.tf
+++ b/modules/consul-cluster/variables.tf
@@ -83,6 +83,12 @@ variable "allowed_inbound_security_group_ids" {
   default     = []
 }
 
+variable "additional_security_group_ids" {
+  description = "A list of additional security group IDs to add to Consul EC2 Instances"
+  type        = "list"
+  default     = []
+}
+
 variable "termination_policies" {
   description = "A list of policies to decide how the instances in the auto scale group should be terminated. The allowed values are OldestInstance, NewestInstance, OldestLaunchConfiguration, ClosestToNextInstanceHour, Default."
   default     = "Default"