135 lines
4.5 KiB
HCL
135 lines
4.5 KiB
HCL
/**
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* Copyright 2024 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 Audit log project and sink.
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locals {
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_log_keys = var.enable_features.encryption ? {
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bq = (
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var.enable_features.log_sink
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? [format(
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"projects/%s/locations/%s/keyRings/%s/cryptoKeys/bq",
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module.sec-project.0.project_id,
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var.log_locations.bq,
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var.log_locations.bq
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)]
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: null
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)
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pubsub = (
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var.enable_features.log_sink
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? [format(
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"projects/%s/locations/%s/keyRings/%s/cryptoKeys/pubsub",
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module.sec-project.0.project_id,
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var.log_locations.pubsub,
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var.log_locations.pubsub
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)]
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: null
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)
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storage = (
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var.enable_features.log_sink
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? [format(
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"projects/%s/locations/%s/keyRings/%s/cryptoKeys/storage",
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module.sec-project.0.project_id,
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var.log_locations.storage,
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var.log_locations.storage
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)]
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: null
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)
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} : {}
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gcs_storage_class = (
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length(split("-", var.log_locations.storage)) < 2
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? "MULTI_REGIONAL"
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: "REGIONAL"
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)
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log_types = toset([for k, v in var.log_sinks : v.type])
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log_keys = {
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for service, key in local._log_keys : service => key if key != null
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}
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}
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module "log-export-project" {
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count = var.enable_features.log_sink ? 1 : 0
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source = "../../../modules/project"
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name = var.project_config.project_ids["audit-logs"]
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parent = module.folder.id
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billing_account = var.project_config.billing_account_id
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project_create = var.project_config.billing_account_id != null
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prefix = (
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var.project_config.billing_account_id == null ? null : var.prefix
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)
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iam_by_principals = {
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"group:${local.groups.workload-security}" = [
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"roles/editor"
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]
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}
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iam = {
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# "roles/owner" = [module.automation-tf-bootstrap-sa.iam_email]
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}
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services = [
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"bigquery.googleapis.com",
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"pubsub.googleapis.com",
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"storage.googleapis.com",
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"stackdriver.googleapis.com"
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]
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service_encryption_key_ids = var.enable_features.encryption ? local.log_keys : {}
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depends_on = [
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module.log-kms
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]
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}
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# one log export per type, with conditionals to skip those not needed
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module "log-export-dataset" {
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source = "../../../modules/bigquery-dataset"
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count = var.enable_features.log_sink && contains(local.log_types, "bigquery") ? 1 : 0
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project_id = module.log-export-project[0].project_id
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id = "${var.prefix}_audit_export"
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friendly_name = "Audit logs export."
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location = replace(var.log_locations.bq, "europe", "EU")
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encryption_key = var.enable_features.encryption ? module.log-kms[var.log_locations.bq].keys["bq"].id : null
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}
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module "log-export-gcs" {
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source = "../../../modules/gcs"
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count = var.enable_features.log_sink && contains(local.log_types, "storage") ? 1 : 0
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project_id = module.log-export-project[0].project_id
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name = "audit-logs"
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prefix = var.prefix
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location = replace(var.log_locations.storage, "europe", "EU")
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storage_class = local.gcs_storage_class
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encryption_key = var.enable_features.encryption ? module.log-kms[var.log_locations.storage].keys["storage"].id : null
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}
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module "log-export-logbucket" {
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source = "../../../modules/logging-bucket"
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for_each = var.enable_features.log_sink ? toset([for k, v in var.log_sinks : k if v.type == "logging"]) : []
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parent_type = "project"
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parent = module.log-export-project[0].project_id
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id = "audit-logs-${each.key}"
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location = var.log_locations.logging
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#TODO check if logging bucket support encryption.
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}
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module "log-export-pubsub" {
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source = "../../../modules/pubsub"
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for_each = toset([for k, v in var.log_sinks : k if v.type == "pubsub" && var.enable_features.log_sink])
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project_id = module.log-export-project[0].project_id
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name = "audit-logs-${each.key}"
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regions = [var.log_locations.pubsub]
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kms_key = var.enable_features.encryption ? module.log-kms[var.log_locations.pubsub].keys["pubsub"].id : null
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}
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