feat(query): implements "Beta - Cluster Without Network Policy Support"#7907
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cx-rui-araujo merged 12 commits intoJan 26, 2026
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Reason for Proposed Changes
Currently there is no query to ensure that a "google_container_cluster" resource allows support for a network policy.
Quoting CIS_Google_Kubernetes_Engine_(GKE)_Benchmark_v1.9.0 page 64: "
There are a variety of CNI plugins available for Kubernetes. If the CNI in use does not support Network Policies it may not be possible to effectively restrict traffic in the cluster.Proposed Changes
Implemented the missing query.
The remediation suggested in the Benchmark helps bridge the gap between CNI plugins and their compatibility with network policies and what we must actually check in the terraform IaC samples : "
To use a CNI plugin with Network Policy, enable Network Policy in GKE, and the CNI plugin will be updated."To ensure a given "google_container_cluster" resource supports use of a "network policy" it must be setup with the "network_policy.enabled" field set to true. The documentation seems to imply changing the "network_policy.provider" field can be done without the need to recreate the cluster whilst the "enabled" field would require said re creation.
With this the query will flag the target "google_container_cluster" if it:
true(since "enabled" is a required field the scenario of it missing was not included in the tests)I submit this contribution under the Apache-2.0 license.