[TEST/WIP] Add Y-stream skew periodic job for HyperShift 5.0 Azure AKS by weliang1 · Pull Request #80800 · openshift/release

weliang1 · 2026-06-19T18:50:27Z

⚠️ TEST PR - FOR /pj-rehearse TESTING ONLY

This PR adds periodic job configuration for testing Y-stream version skew in HyperShift 5.0 on Azure AKS.

Purpose: Test the job configuration using /pj-rehearse before merging.

Job Configuration

Job name: periodic-ci-openshift-hypershift-release-5.0-periodics-hcm-azure-e2e-aks-y-stream-skew
Test: e2e-aks-y-stream-skew
Schedule: Daily at 1:00 PM UTC (cron: 0 13 * * *)
Platform: Azure AKS
Workflow: hypershift-azure-aks-e2e
Cluster profile: hypershift-aks

What This Job Tests

Creates cluster at 4.22 on Azure AKS
Upgrades control plane to 5.0
Upgrades only 1 NodePool to 5.0
Leaves other NodePools at 4.22
Validates cluster functionality with Y-stream skew (N-1 version support)

Files Modified

ci-operator/config/openshift/hypershift/openshift-hypershift-release-5.0__periodics-hcm-azure.yaml
- Added test configuration: e2e-aks-y-stream-skew
- Dependencies: OCP_IMAGE_PREVIOUS (4.22), OCP_IMAGE_LATEST (5.0)
- Environment: Azure AKS with certificate-based auth
ci-operator/jobs/openshift/hypershift/openshift-hypershift-release-5.0-periodics.yaml
- Added periodic job definition
- TESTING: Points to weliang1:weliang/add-y-stream-skew-test branch
- TODO: Update to openshift:release-5.0 after testing

Testing Plan

✅ PR created in openshift/release
⏳ Use /pj-rehearse periodic-ci-openshift-hypershift-release-5.0-periodics-hcm-azure-e2e-aks-y-stream-skew
⏳ Verify test runs successfully on Azure AKS
⏳ Update extra_refs to point to openshift:release-5.0
⏳ Merge hypershift PR Remove knative-build #8786
⏳ Update this PR and merge

Dependencies

Hypershift PR: openshift/hypershift#8786

Contains the test implementation (test/e2e/y_stream_skew_test.go)
Branch: weliang1:weliang/add-y-stream-skew-test

Based On

Template job: periodic-ci-openshift-hypershift-release-5.0-periodics-hcm-azure-e2e-aks-upgrade-minor

Key differences:

Test: e2e-aks-upgrade-minor → e2e-aks-y-stream-skew
Behavior: Full upgrade → Partial upgrade with Y-stream skew
Schedule: 11:00 AM → 1:00 PM (avoid resource contention)

How to Test

Use /pj-rehearse to run the job:

/pj-rehearse periodic-ci-openshift-hypershift-release-5.0-periodics-hcm-azure-e2e-aks-y-stream-skew

This will:

Run the test on real Azure AKS infrastructure
Use the code from hypershift PR Remove knative-build #8786
Validate the full E2E workflow

Note: This is a TEST PR. After /pj-rehearse succeeds, will update to production config.

Summary by CodeRabbit

This PR adds a new periodic CI job for HyperShift 5.0 that validates Y-stream version skew between control plane and worker nodes on Azure AKS.

Changes:

The PR modifies two files in the OpenShift release repository's HyperShift configuration:

ci-operator/config/openshift/hypershift/openshift-hypershift-release-5.0__periodics-hcm-azure.yaml - Added a new test definition:
- Test name: e2e-aks-y-stream-skew
- Schedule: Daily at 1:00 PM UTC (0 13 * * *)
- Uses the hypershift-azure-aks-e2e workflow on the hypershift-aks cluster profile
- Configures certificate-based authentication (AUTH_THROUGH_CERTS: "true")
- Sets test execution to the TestYStreamSkew test case
- Specifies Azure region as centralus
- Depends on two OpenShift releases: OCP_IMAGE_PREVIOUS (4.22) and OCP_IMAGE_LATEST (5.0)
ci-operator/jobs/openshift/hypershift/openshift-hypershift-release-5.0-periodics.yaml - Generated Prow job definition for the new test with the name periodic-ci-openshift-hypershift-release-5.0-periodics-hcm-azure-e2e-aks-y-stream-skew

Purpose:

The test validates that HyperShift's control plane at version 5.0 can successfully manage NodePools running version 4.22, ensuring N-1 version compatibility and cluster stability across version boundaries.

Testing Status:

This is a TEST PR using the weliang1:weliang/add-y-stream-skew-test branch (unmerged hypershift PR #8786) and is designated for validation with /pj-rehearse before production deployment. After successful testing, the configuration will be updated to point to the official openshift:release-5.0 branch.

This is a TEST PR to validate the Y-stream skew test implementation using /pj-rehearse. Adds new periodic CI job to test Y-stream version skew between HyperShift control plane and data plane (NodePools). Job configuration: - Test: e2e-aks-y-stream-skew - Schedule: Daily at 1:00 PM UTC - Platform: Azure AKS - Versions: 4.22 → 5.0 (control plane + 1 NodePool) The test validates that HyperShift control plane can operate at 5.0 while managing NodePools at 4.22, supporting N-1 version skew. **Testing Configuration:** - Points to unmerged branch: weliang1:weliang/add-y-stream-skew-test - After testing, will update to: openshift:release-5.0 Depends on: openshift/hypershift#8786 Signed-off-by: weliang1 <weliang@redhat.com>

coderabbitai · 2026-06-19T18:50:54Z

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: fce3fd75-b02d-41d3-a65d-8e622c8189ec

📥 Commits

Reviewing files that changed from the base of the PR and between 3736154 and e86e467.

⛔ Files ignored due to path filters (1)

ci-operator/jobs/openshift/hypershift/openshift-hypershift-release-5.0-periodics.yaml is excluded by !ci-operator/jobs/**

📒 Files selected for processing (1)

ci-operator/config/openshift/hypershift/openshift-hypershift-release-5.0__periodics-hcm-azure.yaml

Walkthrough

A new periodic e2e job e2e-aks-y-stream-skew is added to the HyperShift release-5.0 Azure periodics config. It runs daily at 13:00 UTC using the hypershift-azure-aks-e2e workflow, depends on release:latest and release:initial-minor, and targets the ^TestYStreamSkew$ test in the centralus region with certificate-based auth.

Changes

AKS Y-stream Skew Periodic Job

Layer / File(s)	Summary
New e2e-aks-y-stream-skew periodic entry `ci-operator/config/openshift/hypershift/openshift-hypershift-release-5.0__periodics-hcm-azure.yaml`	Adds a daily periodic job entry with cron `0 13 * * *`, the `hypershift-azure-aks-e2e` workflow, `hypershift-aks` cluster profile, `AUTH_THROUGH_CERTS: "true"`, `OCP_IMAGE_LATEST`/`OCP_IMAGE_PREVIOUS` release dependencies, and `CI_TESTS_RUN: ^TestYStreamSkew$` targeting `centralus`.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 15

✅ Passed checks (15 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding a new Y-stream skew periodic job for HyperShift 5.0 on Azure AKS, which is clearly reflected in the configuration additions.
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	This PR modifies only YAML CI/CD configuration files (openshift-hypershift-release-5.0__periodics-hcm-azure.yaml). It contains no Ginkgo test code. The actual test implementation exists in hypershi...
Test Structure And Quality	✅ Passed	PR contains only CI/CD configuration YAML and infrastructure files, no Ginkgo test code to review. Check is not applicable to this PR.
Microshift Test Compatibility	✅ Passed	This PR adds only CI configuration (YAML files), not new Ginkgo e2e tests. The check applies to "new Ginkgo e2e tests" but this PR contains no Go test code or test definitions.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	This PR contains only CI/CD configuration (YAML), not new Ginkgo test code. The actual test (TestYStreamSkew) is in the openshift/hypershift repo and not subject to this check scope.
Topology-Aware Scheduling Compatibility	✅ Passed	PR adds only CI job configuration files (ci-operator config and Prow job definitions) with no deployment manifests, operator code, or pod scheduling constraints. Check does not apply.
Ote Binary Stdout Contract	✅ Passed	PR modifies only CI configuration YAML files in openshift/release; test implementation code is in separate openshift/hypershift repo. No executable code or stdout writes present.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	No new Ginkgo e2e test code files are added in this PR. This is a CI configuration-only PR in openshift/release. Actual test implementation (TestYStreamSkew) is in separate hypershift PR `#8786`.
No-Weak-Crypto	✅ Passed	PR only adds YAML CI job configurations with no cryptographic implementations, weak algorithms, custom crypto, or insecure secret comparisons detected.
Container-Privileges	✅ Passed	The modified files are CI configuration files (ci-operator config and Prowjobs definitions), not Kubernetes Pod/Deployment manifests. They contain no container security settings like privileged: tr...
No-Sensitive-Data-In-Logs	✅ Passed	No sensitive data (passwords, tokens, API keys, PII, etc.) found embedded in configuration. All credentials handled via secure Kubernetes secret mounts and mount paths, not literal values.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

Create PR with unit tests

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openshift-ci · 2026-06-19T18:51:13Z

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: weliang1
Once this PR has been reviewed and has the lgtm label, please assign devguyio for approval. For more information see the Code Review Process.

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

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Approvers can indicate their approval by writing /approve in a comment
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openshift-merge-bot · 2026-06-19T18:55:03Z

[REHEARSALNOTIFIER]
@weliang1: 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
periodic-ci-openshift-hypershift-release-5.0-periodics-hcm-azure-e2e-aks-y-stream-skew	N/A	periodic	Periodic 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.

openshift-merge-bot · 2026-06-19T18:55:04Z

@weliang1: now processing your pj-rehearse request. Please allow up to 10 minutes for jobs to trigger or cancel.

openshift-ci · 2026-06-19T18:55:57Z

@weliang1: The following test 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/generated-config	`e86e467`	link	true	`/test generated-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.

openshift-merge-bot · 2026-06-19T18:58:05Z

@weliang1, pj-rehearse: unable to set up jobs ERROR:

ci-operator config file weliang1-hypershift-weliang/add-y-stream-skew-test__periodics-hcm-azure.yaml was not found

If the problem persists, please contact Test Platform.

openshift-ci Bot requested review from bryan-cox and sdminonne June 19, 2026 18:51

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[TEST/WIP] Add Y-stream skew periodic job for HyperShift 5.0 Azure AKS#80800

[TEST/WIP] Add Y-stream skew periodic job for HyperShift 5.0 Azure AKS#80800
weliang1 wants to merge 1 commit into
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weliang1:add-y-stream-skew-job

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⚠️ TEST PR - FOR /pj-rehearse TESTING ONLY

Job Configuration

What This Job Tests

Files Modified

Testing Plan

Dependencies

Based On

How to Test

Summary by CodeRabbit

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Walkthrough

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weliang1 commented Jun 19, 2026 •

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