Add cudn-density-single-ns 800 and 1000 presubmit tests for ovn-kubernetes

[mohit-sheth]

Summary

• Add optional presubmit tests cudn-density-single-ns-800-24nodes and cudn-density-single-ns-1000-24nodes to ovn-kubernetes main config
• Both tests use 24-node clusters with m6a.4xlarge compute, r5.4xlarge infra nodes, and single namespace per CUDN
• RUN_ORION is set to false

Summary by CodeRabbit

Adds two optional AWS perfscale CUDN density presubmit jobs to the ovn-kubernetes main CI configuration:

• cudn-density-single-ns-800-24nodes
• cudn-density-single-ns-1000-24nodes

Each job runs on a 24-node cluster with dedicated compute and infrastructure instance types, one namespace per CUDN, RUN_ORION=false, and the openshift-qe-cudn-density test chain.

[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: Pro Plus

Run ID: 1dab9689-4077-4ff9-a0d9-6287e83bac0a

📥 Commits

Reviewing files that changed from the base of the PR and between 1da83ed and d41a118.

⛔ Files ignored due to path filters (1)

• ci-operator/jobs/openshift/ovn-kubernetes/openshift-ovn-kubernetes-main-presubmits.yaml is excluded by !ci-operator/jobs/**

📒 Files selected for processing (1)

• ci-operator/config/openshift/ovn-kubernetes/openshift-ovn-kubernetes-main.yaml

---

Walkthrough

The configuration adds two optional AWS perfscale jobs for single-namespace CUDN density testing on 24-node clusters. The jobs run 800 and 1,000 iterations with dedicated Orion scenarios and worker-scaling setup.

Changes

CUDN density job coverage

Layer / File(s)	Summary
Configure AWS perfscale jobs ci-operator/config/openshift/ovn-kubernetes/openshift-ovn-kubernetes-main.yaml	Adds optional 800-iteration and 1,000-iteration single-namespace jobs. Each job configures AWS platform settings, 21 additional workers, Orion scenarios, standard pre/post chains, worker scaling, and the openshift-qe-cudn-density test chain.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to d41a1

This PR adds two optional presubmit configurations, and no actionable merge-blocking risk remains at the current head. It is merge-ready after normal checks and review.

Suggested reviewers: jmguzik, deepsm007, arkadeepsen

---

Important

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

❌ Failed checks (1 error)

Check name	Status	Explanation	Resolution
No-Sensitive-Data-In-Logs	❌ Error	New tests invoke the CUDN chain; its script enables set -x, reads ES_PASSWORD, and traces an expanded ES_SERVER URL containing it. Activations increase from 1 to 3.	Disable xtrace before reading credentials and constructing ES_SERVER, or mask the password before any traced command. Re-enable tracing only after secret handling.

✅ Passed checks (14 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the addition of the two CUDN density presubmit tests for 800 and 1000 iterations.
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	The PR adds only static YAML CI target and job identifiers; it adds no Ginkgo It, Describe, Context, or When titles and no dynamic test-name values.
Test Structure And Quality	✅ Passed	The PR changes only two YAML configuration files and adds no Ginkgo test code or It/Eventually/BeforeEach constructs for this check to review.
Microshift Test Compatibility	✅ Passed	The commit changes only CI YAML and generated presubmit YAML; it adds no Ginkgo It/Describe/Context/When test source, so this MicroShift compatibility check is not applicable.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	The PR diff adds only YAML CI configuration and generated job declarations; it adds no Ginkgo It(), Describe(), Context(), or When() tests, so this SNO check is not applicable.
Topology-Aware Scheduling Compatibility	✅ Passed	The diff only adds CI configuration and generated Prow jobs. It adds no deployment, operator, controller, affinity, spread, selector, toleration, replica, or PDB scheduling constraint.
Ote Binary Stdout Contract	✅ Passed	The PR changes only CI configuration and generated Prow YAML; it adds no OTE binary code or process-level stdout writes, so the stdout contract is not implicated.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	PR changes only two YAML CI/job files; no Go files, Ginkgo constructs, IPv4 literals, or external URLs were added. Jobs reuse the existing cudn-density chain.
No-Weak-Crypto	✅ Passed	The PR adds only CI job and generated presubmit YAML; the added lines contain no MD5, SHA1, DES, RC4, 3DES, Blowfish, ECB, crypto implementation, or secret-comparison logic.
Container-Privileges	✅ Passed	The PR adds only CI job/config YAML. The complete added-line audit found no privileged, hostPID, hostNetwork, hostIPC, SYS_ADMIN, allowPrivilegeEscalation, or root settings.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[openshift-merge-bot]

[REHEARSALNOTIFIER]
@mohit-sheth: the pj-rehearse plugin accommodates running rehearsal tests for the changes in this PR. Expand 'Interacting with pj-rehearse' for usage details. The following rehearsable tests have been affected by this change:

Test name	Repo	Type	Reason
pull-ci-openshift-ovn-kubernetes-main-cudn-density-single-ns-1000-24nodes	openshift/ovn-kubernetes	presubmit	Presubmit changed
pull-ci-openshift-ovn-kubernetes-main-cudn-density-single-ns-800-24nodes	openshift/ovn-kubernetes	presubmit	Presubmit changed

Prior to this PR being merged, you will need to either run and acknowledge or opt to skip these rehearsals.

Interacting with pj-rehearse

Comment: /pj-rehearse to run up to 5 rehearsals
Comment: /pj-rehearse skip to opt-out of rehearsals
Comment: /pj-rehearse {test-name}, with each test separated by a space, to run one or more specific rehearsals
Comment: /pj-rehearse more to run up to 10 rehearsals
Comment: /pj-rehearse max to run up to 25 rehearsals
Comment: /pj-rehearse auto-ack to run up to 5 rehearsals, and add the rehearsals-ack label on success
Comment: /pj-rehearse list to get an up-to-date list of affected jobs
Comment: /pj-rehearse abort to abort all active rehearsals
Comment: /pj-rehearse network-access-allowed to allow rehearsals of tests that have the restrict_network_access field set to false. This must be executed by an openshift org member who is not the PR author

Once you are satisfied with the results of the rehearsals, comment: /pj-rehearse ack to unblock merge. When the rehearsals-ack label is present on your PR, merge will no longer be blocked by rehearsals.
If you would like the rehearsals-ack label removed, comment: /pj-rehearse reject to re-block merging.

[kyrtapz]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kyrtapz, mohit-sheth

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• ci-operator/config/openshift/ovn-kubernetes/OWNERS [kyrtapz]
• ci-operator/jobs/openshift/ovn-kubernetes/OWNERS [kyrtapz]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[kyrtapz]

/pj-rehearse

[openshift-merge-bot]

@kyrtapz: now processing your pj-rehearse request. Please allow up to 10 minutes for jobs to trigger or cancel.

[openshift-ci]

@mohit-sheth: 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/rehearse/openshift/ovn-kubernetes/main/cudn-density-single-ns-1000-24nodes	d41a118	link	unknown	/pj-rehearse pull-ci-openshift-ovn-kubernetes-main-cudn-density-single-ns-1000-24nodes
ci/prow/config	d41a118	link	true	/test config

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.