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

custom.firewallRestrictExplicitAllPortsRule:
  action_type: DENY
  condition: |-
    resource.direction == 'INGRESS' &&
    resource.allowed.exists(rule,
      rule.IPProtocol in ['tcp', 'udp'] && (
        !has(rule.ports) ||
        '0-65535' in rule.ports ||
        '1-65535' in rule.ports
      )
    ) &&
    !resource.name.startsWith('gke-') &&
    !resource.name.startsWith('k8s-') &&
    !resource.name.endsWith('-hc') &&
    !resource.name.startsWith('k8s2-') &&
    !resource.name.startsWith('gkegw1-l7-') &&
    !resource.name.startsWith('gkemcg1-l7-')
  description: Prevent VPC firewall rules that explicitly specify all TCP/UDP ports
    using ranges like 0-65535 or 1-65535
  display_name: Restrict VPC Firewall rules with explicit all-ports specifications
  method_types:
  - CREATE
  - UPDATE
  resource_types:
  - compute.googleapis.com/Firewall
