348 lines
12 KiB
HCL
348 lines
12 KiB
HCL
/**
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* Copyright 2021 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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_factory_data = var.data_folder == null ? {} : {
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for f in fileset(var.data_folder, "**/*.yaml") :
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trimsuffix(basename(f), ".yaml") => yamldecode(file("${var.data_folder}/${f}"))
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}
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_factory_descriptions = {
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for k, v in local._factory_data :
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"${v.region}/${k}" => try(v.description, null)
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}
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_factory_iam_members = [
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for k, v in local._factory_subnets : {
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subnet = k
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role = "roles/compute.networkUser"
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members = concat(
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formatlist("group:%s", try(v.iam_groups, [])),
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formatlist("user:%s", try(v.iam_users, [])),
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formatlist("serviceAccount:%s", try(v.iam_service_accounts, []))
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)
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}
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]
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_factory_flow_logs = {
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for k, v in local._factory_data : "${v.region}/${k}" => merge(
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var.log_config_defaults, try(v.flow_logs, {})
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) if try(v.flow_logs, false)
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}
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_factory_private_access = {
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for k, v in local._factory_data : "${v.region}/${k}" => try(
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v.private_ip_google_access, true
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)
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}
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_factory_subnets = {
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for k, v in local._factory_data : "${v.region}/${k}" => {
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ip_cidr_range = v.ip_cidr_range
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name = k
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region = v.region
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secondary_ip_range = try(v.secondary_ip_range, [])
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}
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}
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_iam = var.iam == null ? {} : var.iam
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_routes = var.routes == null ? {} : var.routes
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_subnet_flow_logs = {
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for k, v in var.subnet_flow_logs : k => merge(
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var.log_config_defaults, try(var.log_configs[k], {})
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)
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}
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_subnet_iam_members = flatten([
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for subnet, roles in local._iam : [
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for role, members in roles : {
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members = members
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role = role
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subnet = subnet
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}
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]
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])
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network = (
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var.vpc_create
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? try(google_compute_network.network.0, null)
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: try(data.google_compute_network.network.0, null)
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)
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peer_network = (
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var.peering_config == null
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? null
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: element(reverse(split("/", var.peering_config.peer_vpc_self_link)), 0)
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)
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psn_ranges = {
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for r in(var.psn_ranges == null ? [] : var.psn_ranges) : r => {
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address = split("/", r)[0]
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name = replace(split("/", r)[0], ".", "-")
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prefix_length = split("/", r)[1]
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}
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}
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routes = {
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gateway = { for k, v in local._routes : k => v if v.next_hop_type == "gateway" }
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ilb = { for k, v in local._routes : k => v if v.next_hop_type == "ilb" }
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instance = { for k, v in local._routes : k => v if v.next_hop_type == "instance" }
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ip = { for k, v in local._routes : k => v if v.next_hop_type == "ip" }
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vpn_tunnel = { for k, v in local._routes : k => v if v.next_hop_type == "vpn_tunnel" }
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}
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subnet_descriptions = merge(
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local._factory_descriptions, var.subnet_descriptions
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)
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subnet_iam_members = concat(
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local._factory_iam_members, local._subnet_iam_members
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)
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subnet_flow_logs = merge(
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local._factory_flow_logs, local._subnet_flow_logs
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)
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subnet_private_access = merge(
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local._factory_private_access, var.subnet_private_access
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)
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subnets = merge(
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{ for subnet in var.subnets : "${subnet.region}/${subnet.name}" => subnet },
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local._factory_subnets
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)
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subnets_l7ilb = {
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for subnet in var.subnets_l7ilb :
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"${subnet.region}/${subnet.name}" => subnet
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}
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}
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data "google_compute_network" "network" {
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count = var.vpc_create ? 0 : 1
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project = var.project_id
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name = var.name
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}
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resource "google_compute_network" "network" {
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count = var.vpc_create ? 1 : 0
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project = var.project_id
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name = var.name
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description = var.description
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auto_create_subnetworks = var.auto_create_subnetworks
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delete_default_routes_on_create = var.delete_default_routes_on_create
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mtu = var.mtu
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routing_mode = var.routing_mode
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}
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resource "google_compute_network_peering" "local" {
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provider = google-beta
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count = var.peering_config == null ? 0 : 1
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name = "${var.name}-${local.peer_network}"
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network = local.network.self_link
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peer_network = var.peering_config.peer_vpc_self_link
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export_custom_routes = var.peering_config.export_routes
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import_custom_routes = var.peering_config.import_routes
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}
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resource "google_compute_network_peering" "remote" {
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provider = google-beta
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count = var.peering_config != null && var.peering_create_remote_end ? 1 : 0
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name = "${local.peer_network}-${var.name}"
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network = var.peering_config.peer_vpc_self_link
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peer_network = local.network.self_link
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export_custom_routes = var.peering_config.import_routes
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import_custom_routes = var.peering_config.export_routes
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depends_on = [google_compute_network_peering.local]
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}
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resource "google_compute_shared_vpc_host_project" "shared_vpc_host" {
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count = var.shared_vpc_host ? 1 : 0
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project = var.project_id
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depends_on = [local.network]
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}
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resource "google_compute_shared_vpc_service_project" "service_projects" {
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for_each = (
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var.shared_vpc_host && var.shared_vpc_service_projects != null
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? toset(var.shared_vpc_service_projects)
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: toset([])
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)
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host_project = var.project_id
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service_project = each.value
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depends_on = [google_compute_shared_vpc_host_project.shared_vpc_host]
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}
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resource "google_compute_subnetwork" "subnetwork" {
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for_each = local.subnets
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project = var.project_id
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network = local.network.name
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region = each.value.region
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name = each.value.name
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ip_cidr_range = each.value.ip_cidr_range
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secondary_ip_range = each.value.secondary_ip_range == null ? [] : [
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for name, range in each.value.secondary_ip_range :
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{ range_name = name, ip_cidr_range = range }
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]
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description = lookup(
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local.subnet_descriptions, each.key, "Terraform-managed."
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)
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private_ip_google_access = lookup(
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local.subnet_private_access, each.key, true
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)
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dynamic "log_config" {
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for_each = toset(
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try(local.subnet_flow_logs[each.key], {}) != {}
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? [local.subnet_flow_logs[each.key]]
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: []
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)
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iterator = config
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content {
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aggregation_interval = config.value.aggregation_interval
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flow_sampling = config.value.flow_sampling
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metadata = config.value.metadata
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}
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}
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}
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resource "google_compute_subnetwork" "l7ilb" {
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provider = google-beta
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for_each = local.subnets_l7ilb
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project = var.project_id
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network = local.network.name
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region = each.value.region
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name = each.value.name
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ip_cidr_range = each.value.ip_cidr_range
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purpose = "INTERNAL_HTTPS_LOAD_BALANCER"
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role = (
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each.value.active || each.value.active == null ? "ACTIVE" : "BACKUP"
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)
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description = lookup(
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local.subnet_descriptions,
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"${each.value.region}/${each.value.name}",
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"Terraform-managed."
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)
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}
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resource "google_compute_subnetwork_iam_binding" "binding" {
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for_each = {
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for binding in local.subnet_iam_members :
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"${binding.subnet}.${binding.role}" => binding
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}
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project = var.project_id
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subnetwork = google_compute_subnetwork.subnetwork[each.value.subnet].name
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region = google_compute_subnetwork.subnetwork[each.value.subnet].region
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role = each.value.role
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members = each.value.members
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}
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resource "google_compute_route" "gateway" {
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for_each = local.routes.gateway
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project = var.project_id
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network = local.network.name
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name = "${var.name}-${each.key}"
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description = "Terraform-managed."
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dest_range = each.value.dest_range
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priority = each.value.priority
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tags = each.value.tags
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next_hop_gateway = each.value.next_hop
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}
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resource "google_compute_route" "ilb" {
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for_each = local.routes.ilb
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project = var.project_id
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network = local.network.name
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name = "${var.name}-${each.key}"
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description = "Terraform-managed."
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dest_range = each.value.dest_range
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priority = each.value.priority
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tags = each.value.tags
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next_hop_ilb = each.value.next_hop
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}
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resource "google_compute_route" "instance" {
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for_each = local.routes.instance
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project = var.project_id
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network = local.network.name
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name = "${var.name}-${each.key}"
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description = "Terraform-managed."
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dest_range = each.value.dest_range
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priority = each.value.priority
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tags = each.value.tags
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next_hop_instance = each.value.next_hop
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# not setting the instance zone will trigger a refresh
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next_hop_instance_zone = regex("zones/([^/]+)/", each.value.next_hop)[0]
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}
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resource "google_compute_route" "ip" {
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for_each = local.routes.ip
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project = var.project_id
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network = local.network.name
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name = "${var.name}-${each.key}"
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description = "Terraform-managed."
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dest_range = each.value.dest_range
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priority = each.value.priority
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tags = each.value.tags
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next_hop_ip = each.value.next_hop
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}
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resource "google_compute_route" "vpn_tunnel" {
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for_each = local.routes.vpn_tunnel
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project = var.project_id
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network = local.network.name
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name = "${var.name}-${each.key}"
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description = "Terraform-managed."
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dest_range = each.value.dest_range
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priority = each.value.priority
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tags = each.value.tags
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next_hop_vpn_tunnel = each.value.next_hop
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}
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resource "google_dns_policy" "default" {
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count = var.dns_policy == null ? 0 : 1
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enable_inbound_forwarding = var.dns_policy.inbound
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enable_logging = var.dns_policy.logging
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name = var.name
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project = var.project_id
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networks {
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network_url = local.network.id
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}
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dynamic "alternative_name_server_config" {
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for_each = toset(var.dns_policy.outbound == null ? [] : [""])
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content {
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dynamic "target_name_servers" {
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for_each = toset(var.dns_policy.outbound.private_ns)
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iterator = ns
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content {
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ipv4_address = ns.key
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forwarding_path = "private"
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}
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}
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dynamic "target_name_servers" {
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for_each = toset(var.dns_policy.outbound.public_ns)
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iterator = ns
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content {
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ipv4_address = ns.key
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}
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}
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}
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}
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}
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resource "google_compute_global_address" "psn_ranges" {
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for_each = local.psn_ranges
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project = var.project_id
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name = "${var.name}-psn-${each.value.name}"
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purpose = "VPC_PEERING"
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address_type = "INTERNAL"
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address = each.value.address
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prefix_length = each.value.prefix_length
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network = local.network.id
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}
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resource "google_service_networking_connection" "psn_connection" {
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for_each = toset(local.psn_ranges == {} ? [] : [""])
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network = local.network.id
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service = "servicenetworking.googleapis.com"
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reserved_peering_ranges = [
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for k, v in google_compute_global_address.psn_ranges : v.name
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]
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}
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