From 3d9576f560af26450cf2b2dda156b059140df46d Mon Sep 17 00:00:00 2001
From: "ZOI\\graham.geary" <gg@zoi.de>
Date: Thu, 17 Dec 2020 11:15:16 +0100
Subject: [PATCH] #2 dynamic instance profile

---
 ec2.tf                  | 1 +
 iam_instance_profile.tf | 5 +++--
 locals.tf               | 4 ++++
 3 files changed, 8 insertions(+), 2 deletions(-)
 create mode 100644 locals.tf

diff --git a/ec2.tf b/ec2.tf
index c6f98d0..6f3b89b 100644
--- a/ec2.tf
+++ b/ec2.tf
@@ -5,6 +5,7 @@ resource "aws_instance" "instance" {
   subnet_id              = var.subnet_id
   vpc_security_group_ids = var.vpc_security_group_ids
   user_data              = var.user_data
+  iam_instance_profile   = local.iam_instance_profile
 
   # Modifying any of the root_block_device settings other than volume_size requires resource replacement
   dynamic "root_block_device" {
diff --git a/iam_instance_profile.tf b/iam_instance_profile.tf
index 41ea9f1..915d1f5 100644
--- a/iam_instance_profile.tf
+++ b/iam_instance_profile.tf
@@ -1,4 +1,5 @@
 resource "aws_iam_instance_profile" "profile" {
-  name = var.iam_instance_profile_name
-  role = var.iam_role_name
+  count = local.create_iam_instance_profile
+  name  = var.iam_instance_profile_name
+  role  = var.iam_role_name
 }
\ No newline at end of file
diff --git a/locals.tf b/locals.tf
new file mode 100644
index 0000000..7955790
--- /dev/null
+++ b/locals.tf
@@ -0,0 +1,4 @@
+locals {
+  create_iam_instance_profile =  var.iam_instance_profile_name == "" ? 0 : 1
+  iam_instance_profile        = var.iam_instance_profile_name == "" ? "" : aws_iam_instance_profile[0].profile.name
+}
\ No newline at end of file