anchor.diff:    provider                        = google-beta
     name                            = "ha-vpn-tunnel2"
     region                          = "us-central1"
  -  vpn_gateway                     = google_compute_ha_vpn_gateway.ha_gateway.self_link
  -  peer_external_gateway           = google_compute_external_vpn_gateway.external_gateway.self_link
  +  vpn_gateway                     = google_compute_ha_vpn_gateway.ha_gateway.id
  +  peer_external_gateway           = google_compute_external_vpn_gateway.external_gateway.id
     peer_external_gateway_interface = 0
     shared_secret                   = "a secret message"
  -  router                          = " ${google_compute_router.router1.self_link}"
  +  router                          = " ${google_compute_router.router1.id}"
     vpn_gateway_interface           = 1
   }
   
  
positive.code:   name          = "ha-vpn-subnet-2"
    ip_cidr_range = "10.0.2.0/24"
    region        = "us-west1"
    network       = google_compute_network.network.self_link
  }
  
  resource "google_compute_router" "router1" {
  
negative.code:   provider = google-beta
    region   = "us-central1"
    name     = "<%= ctx[:vars]['ha_vpn_gateway_name'] %>"
    network  = google_compute_network.network.id
  }
  
  resource "google_compute_external_vpn_gateway" "external_gateway" {
  