Fixed #51. t2 and t3 instances can be unlimited

examples/basic/main.tf

@@ -66,7 +66,7 @@ module "ec2" {
 module "ec2_with_t2_unlimited" {
   source = "../../"
 
-  instance_count = 2
+  instance_count = 1
 
   name                        = "example-t2-unlimited"
   ami                         = "${data.aws_ami.amazon_linux.id}"
@@ -76,3 +76,17 @@ module "ec2_with_t2_unlimited" {
   vpc_security_group_ids      = ["${module.security_group.this_security_group_id}"]
   associate_public_ip_address = true
 }
+
+module "ec2_with_t3_unlimited" {
+  source = "../../"
+
+  instance_count = 1
+
+  name                        = "example-t3-unlimited"
+  ami                         = "${data.aws_ami.amazon_linux.id}"
+  instance_type               = "t3.large"
+  cpu_credits                 = "unlimited"
+  subnet_id                   = "${element(data.aws_subnet_ids.all.ids, 0)}"
+  vpc_security_group_ids      = ["${module.security_group.this_security_group_id}"]
+  associate_public_ip_address = true
+}

main.tf

 locals {
-  is_t2_instance_type = "${replace(var.instance_type, "/^t2\\..*$/", "1") == "1" ? "1" : "0"}"
+  is_t_instance_type = "${replace(var.instance_type, "/^t[23]{1}\\..*$/", "1") == "1" ? "1" : "0"}"
 }
 
 ######
 # Note: network_interface can't be specified together with associate_public_ip_address
 ######
 resource "aws_instance" "this" {
-  count = "${var.instance_count * (1 - local.is_t2_instance_type)}"
+  count = "${var.instance_count * (1 - local.is_t_instance_type)}"
 
   ami                    = "${var.ami}"
   instance_type          = "${var.instance_type}"
@@ -45,7 +45,7 @@ resource "aws_instance" "this" {
 }
 
 resource "aws_instance" "this_t2" {
-  count = "${var.instance_count * local.is_t2_instance_type}"
+  count = "${var.instance_count * local.is_t_instance_type}"
 
   ami                    = "${var.ami}"
   instance_type          = "${var.instance_type}"