102 lines
3.2 KiB
HCL
102 lines
3.2 KiB
HCL
/**
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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locals {
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gateway_address = (
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var.gateway_address_create
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? google_compute_address.gateway[0].address
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: var.gateway_address
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)
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route_pairs = {
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for pair in setproduct(keys(var.tunnels), var.remote_ranges) :
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"${pair[0]}-${join("-", regexall("[0-9]+", pair[1]))}" => {
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tunnel = pair[0], range = pair[1]
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}
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}
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secret = random_id.secret.b64_url
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}
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resource "google_compute_address" "gateway" {
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count = var.gateway_address_create ? 1 : 0
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name = "vpn-${var.name}"
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project = var.project_id
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region = var.region
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}
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resource "google_compute_forwarding_rule" "esp" {
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name = "vpn-${var.name}-esp"
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project = var.project_id
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region = var.region
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target = google_compute_vpn_gateway.gateway.self_link
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ip_address = local.gateway_address
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ip_protocol = "ESP"
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}
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resource "google_compute_forwarding_rule" "udp-500" {
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name = "vpn-${var.name}-udp-500"
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project = var.project_id
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region = var.region
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target = google_compute_vpn_gateway.gateway.self_link
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ip_address = local.gateway_address
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ip_protocol = "UDP"
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port_range = "500"
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}
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resource "google_compute_forwarding_rule" "udp-4500" {
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name = "vpn-${var.name}-udp-4500"
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project = var.project_id
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region = var.region
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target = google_compute_vpn_gateway.gateway.self_link
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ip_address = local.gateway_address
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ip_protocol = "UDP"
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port_range = "4500"
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}
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resource "google_compute_route" "route" {
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for_each = local.route_pairs
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name = "vpn-${var.name}-${each.key}"
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project = var.project_id
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network = var.network
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dest_range = each.value.range
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priority = var.route_priority
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next_hop_vpn_tunnel = google_compute_vpn_tunnel.tunnels[each.value.tunnel].self_link
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}
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resource "google_compute_vpn_gateway" "gateway" {
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name = var.name
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project = var.project_id
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region = var.region
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network = var.network
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}
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resource "google_compute_vpn_tunnel" "tunnels" {
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for_each = var.tunnels
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name = "${var.name}-${each.key}"
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project = var.project_id
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region = var.region
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peer_ip = each.value.peer_ip
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local_traffic_selector = each.value.traffic_selectors.local
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remote_traffic_selector = each.value.traffic_selectors.remote
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ike_version = each.value.ike_version
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shared_secret = coalesce(each.value.shared_secret, local.secret)
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target_vpn_gateway = google_compute_vpn_gateway.gateway.self_link
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depends_on = [google_compute_forwarding_rule.esp]
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}
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resource "random_id" "secret" {
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byte_length = 8
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}
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