diff --git a/main.tf b/main.tf
index af60826..a82ef49 100644
--- a/main.tf
+++ b/main.tf
@@ -11,3 +11,12 @@ module "observability" {
   vpc_ipv4_addr		= "10.0.10.3"
   instance_token	= var.token
 }
+
+module "cert-auth" {
+  source		= "./modules/instance"
+  label			= "cert-auth"
+  root_pass		= var.root_pass
+  vpc_subnet_id		= module.main_vpc_subnet.vpc_subnet_id
+  vpc_ipv4_addr		= "10.0.10.2"
+  instance_token	= var.token
+}