175 lines
5.5 KiB
HCL
175 lines
5.5 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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# tfdoc:file:description Subnet resources.
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locals {
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_factory_data = var.data_folder == null ? tomap({}) : {
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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", lookup(v, "iam_groups", [])),
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formatlist("user:%s", lookup(v, "iam_users", [])),
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formatlist("serviceAccount:%s", lookup(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, null) != null
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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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_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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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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[for k in local._factory_iam_members : k if length(k.members) > 0],
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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_proxy_only = {
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for subnet in var.subnets_proxy_only :
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"${subnet.region}/${subnet.name}" => subnet
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}
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subnets_psc = {
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for subnet in var.subnets_psc :
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"${subnet.region}/${subnet.name}" => subnet
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}
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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" "proxy_only" {
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for_each = local.subnets_proxy_only
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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 = "REGIONAL_MANAGED_PROXY"
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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 proxy-only subnet for Regional HTTPS or Internal HTTPS LB."
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)
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}
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resource "google_compute_subnetwork" "psc" {
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for_each = local.subnets_psc
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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 = "PRIVATE_SERVICE_CONNECT"
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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 subnet for Private Service Connect (PSC NAT)."
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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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