Add config.yaml files for IEM in the example output

output_file_example/nginx_openstack/terraform/config.yaml

 ---
-input: ~
+input:
+  - openstack_username
+  - openstack_password
+  - openstack_auth_url
 output: ~
 engine: terraform
 ...

output_file_example/nginx_openstack/terraform/main.tf

@@ -10,10 +10,10 @@ required_version = ">= 0.14.0"
 
 # Configure the OpenStack Provider
 provider "openstack" {
-  user_name   = var.username
+  user_name   = var.openstack_username
   tenant_name = "admin"
-  password    = var.password
-  auth_url    = var.auth_url
+  password    = var.openstack_password
+  auth_url    = var.openstack_auth_url
   insecure    = true
 }
 
@@ -44,7 +44,7 @@ resource "openstack_compute_instance_v2" "nginx" {
 # Create ssh keys
 resource "openstack_compute_keypair_v2" "user_key" {
   name       = "user1"
-  public_key = var.ssh_key
+  public_key = "ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAsRO3dcuZVB0but7Ti9eN+Ti4FvRzQfZT6DugkOnasGSwQkuBUxr0RGHYG2O+C/ul4bN4wcM8VZ4aX9bk9vwkvBkk2uJhy0ZHqIzuwzTOmRPScHWApkxGEANO4QYiYdPYdjmGgAVuKhdqPYOJc5Spkf3n4sYrU89rhC4rLyRs7doYofxpwBVaDfUExPLAtwFb2UGGzC6c0SJzqX4ZFq72NC0zs"
 }
 
 # Create floating ip