added name variable to aws

Author: rberlind

infrastructure-as-code/aws-ec2-instance/README.md

@@ -2,6 +2,6 @@
 This Terraform configuration provisions an EC2 instance in AWS.
 
 ## Details
-By default, this configuration provisions a Ubuntu 14.04 Base Image AMI (with ID ami-2e1ef954) with type t2.micro in the us-east-1 region. But the AMI ID, region, and type can all be set as variables.
+By default, this configuration provisions a Ubuntu 14.04 Base Image AMI (with ID ami-2e1ef954) with type t2.micro in the us-east-1 region. The AMI ID, region, and type can all be set as variables. You can also set the name variable to determine the value set for the Name tag.
 
 Note that you need to set environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY.

infrastructure-as-code/aws-ec2-instance/main.tf

@@ -12,6 +12,6 @@ resource "aws_instance" "ubuntu" {
   availability_zone = "${var.aws_region}a"
 
   tags {
-    Name = "Provisioned-by-Terraform"
+    Name = "${var.name}"
   }
 }

infrastructure-as-code/aws-ec2-instance/variables.tf

@@ -12,3 +12,8 @@ variable "instance_type" {
   description = "type of EC2 instance to provision."
   default = "t2.micro"
 }
+
+variable "name" {
+  description = "name to pass to Name tag"
+  default = "Provisioned by Terraform"
+}