USHIFT-7184: Enforce VMs to use UTC timezone

[pmtk]

Summary by CodeRabbit

• Chores
  • Updated system configuration to set the system timezone to UTC.

[coderabbitai]

Walkthrough

The kickstart post-system configuration script adds a symlink command that sets the system timezone to UTC by linking /etc/localtime to the UTC zoneinfo file.

Changes

System Timezone Setup

Layer / File(s)	Summary
UTC Timezone Symlink Configuration test/kickstart-templates/includes/post-system.cfg	Post-system configuration adds a command to symlink /etc/localtime to /usr/share/zoneinfo/UTC, ensuring the system timezone is set to UTC during initialization.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~5 minutes

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Caution

Pre-merge checks failed

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

• Ignore

❌ Failed checks (1 error)

Check name	Status	Explanation	Resolution
No-Sensitive-Data-In-Logs	❌ Error	File contains hardcoded password hash on line 2 for default "redhat" user and KUBECONFIG path references that may expose credentials in logs.	Remove or redact hardcoded password hash; use environment variables or secrets management for sensitive credentials instead of embedding in initialization scripts.

✅ Passed checks (14 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
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 modifies only post-system.cfg, a shell configuration file. No Ginkgo tests present; check not applicable.
Test Structure And Quality	✅ Passed	PR modifies post-system.cfg, a kickstart configuration file, not Ginkgo test code. No Ginkgo tests are present in this PR to review against test quality requirements.
Microshift Test Compatibility	✅ Passed	No new Ginkgo e2e tests added in this PR. Changes are only in kickstart configuration file post-system.cfg, which is infrastructure setup, not test code.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	PR modifies a Kickstart VM template configuration file, not Ginkgo e2e tests. Check is not applicable.
Topology-Aware Scheduling Compatibility	✅ Passed	PR only modifies kickstart template system configuration (UTC timezone symlink), not Kubernetes deployment manifests, operator code, or scheduling constraints. Check is not applicable.
Ote Binary Stdout Contract	✅ Passed	PR modifies only a Kickstart template for VM timezone setup. OTE Binary Stdout Contract check applies to Go binaries only; this is shell infrastructure code unrelated to OTE.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	PR modifies only a kickstart template configuration file, not a Ginkgo e2e test. Check applies only to new Ginkgo tests.
No-Weak-Crypto	✅ Passed	PR modifies a timezone configuration file only; no cryptographic code, weak crypto patterns (MD5, SHA1, DES, RC4, 3DES, Blowfish, ECB), or secret comparison logic present.
Container-Privileges	✅ Passed	PR modifies VM provisioning templates (kickstart), not container/K8s manifests. Custom check for container-privileges is not applicable.
Title check	✅ Passed	The title accurately describes the main change: enforcing UTC timezone for VMs by creating a symlink in the kickstart post-system configuration.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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

[pmtk]

/retest

[openshift-ci-robot]

@pmtk: This pull request references USHIFT-7184 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 bug to target the "5.0.0" version, but no target version was set.

Details

In response to this:

Summary by CodeRabbit

• Chores
• Updated system configuration to set the system timezone to UTC.

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 openshift-eng/jira-lifecycle-plugin repository.

[pmtk]

/cherrypick release-4.22 release-4.21 release-4.20 release-4.19 release-4.18 release-4.17 release-4.16

[openshift-cherrypick-robot]

@pmtk: once the present PR merges, I will cherry-pick it on top of release-4.22 in a new PR and assign it to you.

Details

In response to this:

/cherrypick release-4.22 release-4.21 release-4.20 release-4.19 release-4.18 release-4.17 release-4.16

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[openshift-ci]

@pmtk: all tests passed!

Full PR test history. Your PR dashboard.

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[ggiguash]

/lgtm
/verified by ci

[openshift-ci-robot]

@ggiguash: This PR has been marked as verified by ci.

Details

In response to this:

/lgtm
/verified by ci

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ggiguash, pmtk

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• OWNERS [ggiguash,pmtk]

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[openshift-cherrypick-robot]

@pmtk: new pull request created: #6835

Details

In response to this:

/cherrypick release-4.22 release-4.21 release-4.20 release-4.19 release-4.18 release-4.17 release-4.16

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.