MON-4556: Add transport label to CUDN telemetry allowlist

[mattedallo]

Add transport=~"Geneve|NoOverlay|EVPN|Localnet" to the cluster_user_defined_networks telemetry allowlist entry so the transport dimension is explicitly bounded in the telemetry pipeline.

Depends on:

• CORENET-6581: Add transport label to CUDN telemetry recording rule cluster-network-operator#2978 (adds transport to the recording rule's max by())
• Add transport label to CUDN count metric ovn-kubernetes/ovn-kubernetes#6265 (adds the transport label to the raw metric in ovn-k)

Related:

• OCPBUGS-54806: Add telemetry for user-defined networks #2596 (the base UDN/CUDN telemetry entry, merged Apr 2026)
• https://redhat.atlassian.net/browse/MON-4556 (telemetry approval ticket)

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
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[openshift-ci-robot]

@mattedallo: This pull request references MON-4556 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "5.0.0" version, but no target version was set.

Details

In response to this:

Add transport=~"Geneve|NoOverlay|EVPN|Localnet" to the cluster_user_defined_networks telemetry allowlist entry so the transport dimension is explicitly bounded in the telemetry pipeline.

Depends on:

• CORENET-6581: Add transport label to CUDN telemetry recording rule cluster-network-operator#2978 (adds transport to the recording rule's max by())
• Add transport label to CUDN count metric ovn-kubernetes/ovn-kubernetes#6265 (adds the transport label to the raw metric in ovn-k)

Related:

• OCPBUGS-54806: Add telemetry for user-defined networks #2596 (the base UDN/CUDN telemetry entry, merged Apr 2026)
• https://redhat.atlassian.net/browse/MON-4556 (telemetry approval ticket)

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[mattedallo]

/hold

Holding for openshift/cluster-network-operator#2978 — the CMO allowlist requires transport to be present on the recording rule output.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Central YAML (inherited)

Review profile: CHILL

Plan: Enterprise

Run ID: 214be6bd-2953-4460-adc6-476a2b814a65

📥 Commits

Reviewing files that changed from the base of the PR and between a2d7c76 and cb321ca.

📒 Files selected for processing (4)

• Documentation/data-collection.md
• Documentation/sample-metrics.md
• Documentation/telemetry/telemeter_query
• manifests/0000_50_cluster-monitoring-operator_04-config.yaml

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📝 Walkthrough

Walkthrough

The changes consistently add a transport label dimension to the telemetry metric selector cluster:ovnkube_clustermanager_cluster_user_defined_networks:max across documentation and manifest files. The transport label is configured with regex filter values Geneve|NoOverlay|EVPN|Localnet. Documentation comments and sample query examples are updated to reflect this new label breakdown across role, topology, and transport type.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 12

✅ Passed checks (12 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'MON-4556: Add transport label to CUDN telemetry allowlist' accurately summarizes the main change—adding a transport label dimension to the telemetry configuration.
Description check	✅ Passed	The description clearly explains the change (adding transport label filter), its purpose (bounding the transport dimension in telemetry), and includes relevant dependencies and related issues.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Stable And Deterministic Test Names	✅ Passed	PR only modifies documentation and configuration files without any Ginkgo test files or test code patterns.
Test Structure And Quality	✅ Passed	Pull request contains only documentation and manifest configuration changes with no modifications to Ginkgo test files.
Microshift Test Compatibility	✅ Passed	This pull request does not add any new Ginkgo e2e tests. Changes are limited to documentation files and Kubernetes configuration manifests.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	This pull request does not add or modify any Ginkgo e2e tests. Changes are exclusively to documentation and Kubernetes manifests updating telemetry metrics configuration.
Topology-Aware Scheduling Compatibility	✅ Passed	Changes are limited to telemetry metric selectors and Prometheus query configurations in ConfigMap; no pod scheduling constraints or topology-dependent workload logic introduced.
Ote Binary Stdout Contract	✅ Passed	The OTE Binary Stdout Contract check is designed to prevent non-JSON stdout emissions from executable test code at the process level. This PR contains only documentation and configuration file changes with no modifications to executable code.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	This pull request does not add any new Ginkgo e2e tests. The PR consists entirely of documentation updates and manifest configuration changes related to adding a transport label dimension to telemetry metric selectors.

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[mattedallo]

/test all

[openshift-ci]

@mattedallo: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/versions	cb321ca	link	false	/test versions
ci/prow/e2e-aws-ovn-upgrade	cb321ca	link	true	/test e2e-aws-ovn-upgrade

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[simonpasquier]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mattedallo, simonpasquier

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