kubespray/contrib/terraform/openstack/modules/network/outputs.tf

output "router_id" {
  value = "%{if var.use_neutron == 1} ${var.router_id == null ? element(concat(openstack_networking_router_v2.k8s.*.id, [""]), 0) : var.router_id} %{else} %{endif}"
}

output "router_internal_port_id" {
  value = element(concat(openstack_networking_router_interface_v2.k8s.*.id, [""]), 0)
}

output "subnet_id" {
  value = element(concat(openstack_networking_subnet_v2.k8s.*.id, [""]), 0)
}