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Cloud VPN Dynamic Module

Example

This example shows how to configure a single VPN tunnel using a couple of extra features

  • custom advertisement on the tunnel's BGP session; if custom advertisement is not needed, simply set the bgp_peer_options attribute to null
  • internally generated shared secret, which can be fetched from the module's random_secret output for reuse; a predefined secret can be used instead by assigning it to the shared_secret attribute
module "vm" {
  source     = "./fabric/modules/compute-vm"
  project_id = "my-project"
  zone       = "europe-west1-b"
  name       = "my-vm"
  network_interfaces = [{
    nat        = true
    network    = var.vpc.self_link
    subnetwork = var.subnet.self_link
  }]
  service_account = {
    auto_create = true
  }
}

module "vpn-dynamic" {
  source     = "./fabric/modules/net-vpn-dynamic"
  project_id = "my-project"
  region     = "europe-west1"
  network    = var.vpc.name
  name       = "gateway-1"
  router_config = {
    asn = 64514
  }
  tunnels = {
    remote-1 = {
      bgp_peer = {
        address = "169.254.139.134"
        asn     = 64513
        custom_advertise = {
          all_subnets          = true
          all_vpc_subnets      = false
          all_peer_vpc_subnets = false
          ip_ranges = {
            "192.168.0.0/24" = "Advertised range description"
          }
        }
      }
      bgp_session_range = "169.254.139.133/30"
      peer_ip           = module.vm.external_ip
    }
  }
}
# tftest modules=2 resources=12

Variables

name description type required default
name VPN gateway name, and prefix used for dependent resources. string
network VPC used for the gateway and routes. string
project_id Project where resources will be created. string
region Region used for resources. string
router_config Cloud Router configuration for the VPN. If you want to reuse an existing router, set create to false and use name to specify the desired router. object({…})
gateway_address Optional address assigned to the VPN gateway. Ignored unless gateway_address_create is set to false. string null
gateway_address_create Create external address assigned to the VPN gateway. Needs to be explicitly set to false to use address in gateway_address variable. bool true
tunnels VPN tunnel configurations. map(object({…})) {}

Outputs

name description sensitive
address VPN gateway address.
gateway VPN gateway resource.
id Fully qualified VPN gateway id.
name VPN gateway name.
random_secret Generated secret.
router Router resource (only if auto-created).
router_name Router name.
self_link VPN gateway self link.
tunnel_names VPN tunnel names.
tunnel_self_links VPN tunnel self links.
tunnels VPN tunnel resources.