# 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.

# yaml-language-server: $schema=../../../../schemas/custom-constraint.schema.json

custom.iamDisableProjectServiceAccountImpersonationRoles:
  action_type: DENY
  condition: |-
    resource.bindings.exists(binding,
      binding.members.exists(member,
        MemberSubjectStartsWith(member, ['user:', 'group:']) &&
        !MemberSubjectStartsWith(member, ['${iam_principals.gcp-organization-admins}'])
      ) &&
      (
        RoleNameMatches(binding.role, ['roles/iam.serviceAccountUser']) ||
        RoleNameMatches(binding.role, ['roles/iam.serviceAccountTokenCreator'])
      )
    )
  description: Ensure that IAM Users are not assigned the service account user or
    service account token creator roles (requires usage of IAM Condition and tags
    to ensure the constraint is not applied on allowed service accounts)
  display_name: Deny assignment of the service account user or service account token
    creator roles to users
  method_types:
  - CREATE
  - UPDATE
  resource_types:
  - iam.googleapis.com/AllowPolicy
