# 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.iamDisableAdminServiceAccount:
  action_type: DENY
  condition: |-
    resource.bindings.exists(binding,
      binding.members.exists(member,
        !MemberSubjectEndsWith(member, ['@cloudservices.gserviceaccount.com']) &&
        MemberSubjectStartsWith(member, ['serviceAccount:']) &&
        !MemberSubjectEndsWith(member, ['@${project_ids.iac-0}.iam.gserviceaccount.com'])
      ) &&
      (
        RoleNameMatches(binding.role, ['roles/owner', 'roles/admin']) ||
        RoleNameMatches(binding.role, ['roles/editor', 'roles/writer']) ||
        RoleNameContains(binding.role, ['admin', 'Admin'])
      )
    )
  description: Ensure no use of the legacy basic roles (owner and editor), basic roles
    (admin, writer) and usage of admin roles for service account
  display_name: Deny use of the legacy basic roles, basic roles and usage of admin role
    for service account
  method_types:
  - CREATE
  - UPDATE
  resource_types:
  - iam.googleapis.com/AllowPolicy
