116 lines
3.6 KiB
HCL
116 lines
3.6 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 Generic and OSLogin-specific IAM bindings and roles.
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# IAM notes:
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# - external users need to have accepted the invitation email to join
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# - oslogin roles also require role to list instances
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# - additive (non-authoritative) roles might fail due to dynamic values
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locals {
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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:${k}" if try(index(v, r), null) != null
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]
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}
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_iam_additive_pairs = flatten([
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for role, members in var.iam_additive : [
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for member in members : { role = role, member = member }
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]
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])
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_iam_additive_member_pairs = flatten([
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for member, roles in var.iam_additive_members : [
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for role in roles : { role = role, member = member }
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]
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])
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iam = {
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for role in distinct(concat(keys(var.iam), keys(local._group_iam))) :
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role => concat(
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try(var.iam[role], []),
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try(local._group_iam[role], [])
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)
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}
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iam_additive = {
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for pair in concat(local._iam_additive_pairs, local._iam_additive_member_pairs) :
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"${pair.role}-${pair.member}" => pair
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}
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}
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resource "google_project_iam_custom_role" "roles" {
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for_each = var.custom_roles
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project = local.project.project_id
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role_id = each.key
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title = "Custom role ${each.key}"
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description = "Terraform-managed."
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permissions = each.value
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}
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resource "google_project_iam_binding" "authoritative" {
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for_each = local.iam
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project = local.project.project_id
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role = each.key
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members = each.value
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depends_on = [
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google_project_service.project_services,
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google_project_iam_custom_role.roles
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]
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}
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resource "google_project_iam_member" "additive" {
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for_each = (
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length(var.iam_additive) + length(var.iam_additive_members) > 0
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? local.iam_additive
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: {}
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)
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project = local.project.project_id
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role = each.value.role
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member = each.value.member
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depends_on = [
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google_project_service.project_services,
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google_project_iam_custom_role.roles
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]
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}
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resource "google_project_iam_member" "oslogin_iam_serviceaccountuser" {
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for_each = var.oslogin ? toset(distinct(concat(var.oslogin_admins, var.oslogin_users))) : toset([])
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project = local.project.project_id
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role = "roles/iam.serviceAccountUser"
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member = each.value
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}
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resource "google_project_iam_member" "oslogin_compute_viewer" {
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for_each = var.oslogin ? toset(distinct(concat(var.oslogin_admins, var.oslogin_users))) : toset([])
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project = local.project.project_id
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role = "roles/compute.viewer"
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member = each.value
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}
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resource "google_project_iam_member" "oslogin_admins" {
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for_each = var.oslogin ? toset(var.oslogin_admins) : toset([])
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project = local.project.project_id
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role = "roles/compute.osAdminLogin"
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member = each.value
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}
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resource "google_project_iam_member" "oslogin_users" {
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for_each = var.oslogin ? toset(var.oslogin_users) : toset([])
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project = local.project.project_id
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role = "roles/compute.osLogin"
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member = each.value
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}
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