Files
hunfabric/modules/api-gateway/recipe-multi-region/main.tf
2025-10-23 15:50:17 +02:00

155 lines
4.2 KiB
HCL

/**
* Copyright 2025 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
locals {
api_id_prefix = "api"
function_name_prefix = "cf-hello"
specs = { for region in var.regions : region =>
templatefile("${path.module}/spec.yaml", {
api_id = "${local.api_id_prefix}-${region}"
function_name = "${local.function_name_prefix}-${region}"
region = region
project_id = var.project_id
})
}
backends = [
for region in var.regions : {
backend = google_compute_region_network_endpoint_group.serverless-negs[region].id
}
]
}
resource "tls_private_key" "default" {
algorithm = "RSA"
rsa_bits = 2048
}
resource "tls_self_signed_cert" "default" {
private_key_pem = tls_private_key.default.private_key_pem
subject {
common_name = "example.com"
organization = "ACME Examples, Inc"
}
validity_period_hours = 720
allowed_uses = [
"key_encipherment",
"digital_signature",
"server_auth",
]
}
module "project" {
source = "../../../modules/project"
name = var.project_id
project_reuse = {
use_data_source = var._testing == null
attributes = var._testing
}
services = [
"apigateway.googleapis.com",
"cloudbuild.googleapis.com",
"cloudfunctions.googleapis.com",
"compute.googleapis.com",
"run.googleapis.com",
"servicemanagement.googleapis.com",
"servicecontrol.googleapis.com"
]
}
module "sa" {
source = "../../../modules/iam-service-account"
project_id = module.project.project_id
name = "sa-api"
}
module "functions" {
for_each = toset(var.regions)
source = "../../../modules/cloud-function-v2"
project_id = module.project.project_id
name = "${local.function_name_prefix}-${each.value}"
bucket_name = "bkt-${module.project.project_id}-${each.value}"
region = each.value
ingress_settings = "ALLOW_ALL"
bucket_config = {
location = null
lifecycle_delete_age_days = 1
}
bundle_config = {
path = "${path.module}/function"
}
function_config = {
entry_point = "helloGET"
runtime = "nodejs22"
}
service_account_config = {
create = true
}
iam = {
"roles/run.invoker" = [module.sa.iam_email]
}
}
module "gateways" {
for_each = toset(var.regions)
source = "../../../modules/api-gateway"
project_id = module.project.project_id
api_id = "${local.api_id_prefix}-${each.value}"
region = each.value
spec = local.specs[each.value]
service_account_email = module.sa.email
}
module "glb" {
source = "../../../modules/net-lb-app-ext"
project_id = module.project.project_id
name = "glb"
use_classic_version = false
protocol = "HTTPS"
backend_service_configs = {
default = {
backends = local.backends
health_checks = []
port_name = ""
}
}
ssl_certificates = {
create_configs = {
default = {
certificate = tls_self_signed_cert.default.cert_pem
private_key = tls_private_key.default.private_key_pem
}
}
}
}
resource "google_compute_region_network_endpoint_group" "serverless-negs" {
for_each = toset(var.regions)
provider = google-beta
name = "serverless-neg-${module.gateways[each.value].gateway_id}"
project = module.project.project_id
network_endpoint_type = "SERVERLESS"
region = each.value
serverless_deployment {
platform = "apigateway.googleapis.com"
resource = module.gateways[each.value].gateway_id
url_mask = ""
}
lifecycle {
create_before_destroy = true
}
}