Added VPN GW and Tunnel modules.

variables.tf

@@ -30,3 +30,14 @@ variable "ssh" {
     ssh_user   = "slawek@1password"
   }]
 }
+
+variable "peer_ip" {
+  description = "IP address of the remote peer VPN gateway"
+  type        = string
+}
+
+variable "shared_secret" {
+  description = "Shared secret for the VPN tunnel"
+  type        = string
+  sensitive   = true
+}