270 lines
7.8 KiB
HCL
270 lines
7.8 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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extended_rules = flatten([
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for policy, rules in var.firewall_policies : [
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for rule_name, rule in rules :
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merge(rule, { policy = policy, name = rule_name })
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]
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])
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group_iam_roles = distinct(flatten(values(var.group_iam)))
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group_iam = {
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for r in local.group_iam_roles : r => [
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for k, v in var.group_iam : "group:${k}" if try(index(v, r), null) != null
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]
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}
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iam = {
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for role in distinct(concat(keys(var.iam), keys(local.group_iam))) :
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role => concat(
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try(var.iam[role], []),
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try(local.group_iam[role], [])
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)
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}
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rules_map = {
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for rule in local.extended_rules :
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"${rule.policy}-${rule.name}" => rule
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}
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logging_sinks = coalesce(var.logging_sinks, {})
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sink_type_destination = {
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gcs = "storage.googleapis.com"
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bigquery = "bigquery.googleapis.com"
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pubsub = "pubsub.googleapis.com"
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logging = "logging.googleapis.com"
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}
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sink_bindings = {
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for type in ["gcs", "bigquery", "pubsub", "logging"] :
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type => {
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for name, sink in local.logging_sinks :
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name => sink
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if sink.iam && sink.type == type
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}
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}
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folder = (
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var.folder_create
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? try(google_folder.folder.0, null)
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: try(data.google_folder.folder.0, null)
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)
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}
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data "google_folder" "folder" {
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count = var.folder_create ? 0 : 1
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folder = var.id
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}
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resource "google_folder" "folder" {
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count = var.folder_create ? 1 : 0
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display_name = var.name
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parent = var.parent
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}
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resource "google_folder_iam_binding" "authoritative" {
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for_each = local.iam
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folder = local.folder.name
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role = each.key
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members = each.value
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}
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resource "google_folder_organization_policy" "boolean" {
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for_each = var.policy_boolean
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folder = local.folder.name
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constraint = each.key
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dynamic "boolean_policy" {
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for_each = each.value == null ? [] : [each.value]
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iterator = policy
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content {
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enforced = policy.value
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}
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}
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dynamic "restore_policy" {
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for_each = each.value == null ? [""] : []
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content {
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default = true
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}
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}
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}
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resource "google_folder_organization_policy" "list" {
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for_each = var.policy_list
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folder = local.folder.name
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constraint = each.key
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dynamic "list_policy" {
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for_each = each.value.status == null ? [] : [each.value]
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iterator = policy
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content {
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inherit_from_parent = policy.value.inherit_from_parent
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suggested_value = policy.value.suggested_value
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dynamic "allow" {
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for_each = policy.value.status ? [""] : []
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content {
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values = (
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try(length(policy.value.values) > 0, false)
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? policy.value.values
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: null
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)
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all = (
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try(length(policy.value.values) > 0, false)
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? null
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: true
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)
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}
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}
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dynamic "deny" {
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for_each = policy.value.status ? [] : [""]
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content {
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values = (
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try(length(policy.value.values) > 0, false)
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? policy.value.values
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: null
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)
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all = (
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try(length(policy.value.values) > 0, false)
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? null
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: true
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)
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}
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}
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}
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}
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dynamic "restore_policy" {
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for_each = each.value.status == null ? [true] : []
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content {
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default = true
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}
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}
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}
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resource "google_compute_organization_security_policy" "policy" {
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provider = google-beta
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for_each = var.firewall_policies
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display_name = each.key
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parent = local.folder.id
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}
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resource "google_compute_organization_security_policy_rule" "rule" {
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provider = google-beta
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for_each = local.rules_map
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policy_id = google_compute_organization_security_policy.policy[each.value.policy].id
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action = each.value.action
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direction = each.value.direction
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priority = each.value.priority
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target_resources = each.value.target_resources
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target_service_accounts = each.value.target_service_accounts
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enable_logging = each.value.logging
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# preview = each.value.preview
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match {
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description = each.value.description
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config {
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src_ip_ranges = each.value.direction == "INGRESS" ? each.value.ranges : null
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dest_ip_ranges = each.value.direction == "EGRESS" ? each.value.ranges : null
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dynamic "layer4_config" {
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for_each = each.value.ports
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iterator = port
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content {
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ip_protocol = port.key
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ports = port.value
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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_organization_security_policy_association" "attachment" {
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provider = google-beta
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for_each = var.firewall_policy_attachments
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name = "${local.folder.id}-${each.key}"
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attachment_id = local.folder.id
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policy_id = each.value
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}
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resource "google_logging_folder_sink" "sink" {
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for_each = local.logging_sinks
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name = each.key
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#description = "${each.key} (Terraform-managed)"
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folder = local.folder.name
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destination = "${local.sink_type_destination[each.value.type]}/${each.value.destination}"
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filter = each.value.filter
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include_children = each.value.include_children
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dynamic "exclusions" {
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for_each = each.value.exclusions
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iterator = exclusion
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content {
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name = exclusion.key
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filter = exclusion.value
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}
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}
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depends_on = [
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google_folder_iam_binding.authoritative
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]
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}
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resource "google_storage_bucket_iam_member" "gcs-sinks-binding" {
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for_each = local.sink_bindings["gcs"]
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bucket = each.value.destination
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role = "roles/storage.objectCreator"
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member = google_logging_folder_sink.sink[each.key].writer_identity
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}
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resource "google_bigquery_dataset_iam_member" "bq-sinks-binding" {
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for_each = local.sink_bindings["bigquery"]
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project = split("/", each.value.destination)[1]
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dataset_id = split("/", each.value.destination)[3]
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role = "roles/bigquery.dataEditor"
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member = google_logging_folder_sink.sink[each.key].writer_identity
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}
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resource "google_pubsub_topic_iam_member" "pubsub-sinks-binding" {
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for_each = local.sink_bindings["pubsub"]
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project = split("/", each.value.destination)[1]
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topic = split("/", each.value.destination)[3]
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role = "roles/pubsub.publisher"
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member = google_logging_folder_sink.sink[each.key].writer_identity
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}
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resource "google_project_iam_member" "bucket-sinks-binding" {
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for_each = local.sink_bindings["logging"]
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project = split("/", each.value.destination)[1]
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role = "roles/logging.bucketWriter"
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member = google_logging_folder_sink.sink[each.key].writer_identity
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# TODO(jccb): use a condition to limit writer-identity only to this
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# bucket
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}
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resource "google_logging_folder_exclusion" "logging-exclusion" {
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for_each = coalesce(var.logging_exclusions, {})
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name = each.key
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folder = local.folder.name
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description = "${each.key} (Terraform-managed)"
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filter = each.value
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}
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resource "google_essential_contacts_contact" "contact" {
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provider = google-beta
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for_each = var.contacts
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parent = local.folder.name
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email = each.key
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language_tag = "en"
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notification_category_subscriptions = each.value
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}
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