Set eusc-techpreview jobs to candidate tier

[yunjiang29]

Add pattern to classify jobs with "-eusc-techpreview" suffix as candidate tier. This allows these techpreview jobs to be tracked in Sippy while they stabilize before being promoted to standard tier.

This will affect custom DNS techpreview jobs:

e2e-aws-eusc-techpreview

which are being added in openshift/release#75568

Summary by CodeRabbit

• New Features
  • Added classification support for EUSC techpreview jobs, assigning them to the candidate tier in the job matching system.

[openshift-ci-robot]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 181133a and e3ec847.

📒 Files selected for processing (1)

• pkg/variantregistry/ocp.go

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Walkthrough

A new job tier matching rule was added to classify job names containing -eusc-techpreview as "candidate" tier. This extends the existing ordered tier pattern matching list used for variant registry job classification.

Changes

Cohort / File(s)	Summary
EUSC Techpreview Job Tier Classification pkg/variantregistry/ocp.go	Added setJobTier matching rule to assign -eusc-techpreview jobs to the "candidate" variant tier, inserted before subsequent default candidate-matching patterns.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Go Error Handling	✅ Passed	The PR only adds a data structure entry without error handling patterns, panic calls, or pointer dereferences.
Sql Injection Prevention	✅ Passed	The PR adds a hardcoded string pattern to an in-memory job tier classification function with no SQL operations, user input handling, or query construction involved.
Excessive Css In React Should Use Styles	✅ Passed	This custom check is not applicable to the pull request. The PR modifies only pkg/variantregistry/ocp.go, a Go backend file that implements job tier classification logic for Sippy. The file contains no React components, JSX, inline CSS styles, or any styling code whatsoever.
Single Responsibility And Clear Naming	✅ Passed	The PR adheres to Single Responsibility and Clear Naming guidelines with minimal, focused changes that maintain established architectural patterns.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

Warning

There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.

🔧 golangci-lint (2.11.4)

Error: can't load config: unsupported version of the configuration: "" See https://golangci-lint.run/docs/product/migration-guide for migration instructions
The command is terminated due to an error: can't load config: unsupported version of the configuration: "" See https://golangci-lint.run/docs/product/migration-guide for migration instructions

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[openshift-ci-robot]

Scheduling required tests:
/test e2e

[yunjiang29]

@gpei @jianlinliu @liweinan @tthvo PATL

[gpei]

/lgtm

[liweinan]

/lgtm /approve

[yunjiang29]

@neisw Can you review and approve this PR? Thanks

[neisw]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gpei, liweinan, neisw, yunjiang29

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[tthvo]

/tide refresh

[openshift-ci-robot]

Scheduling required tests:
/test e2e

[openshift-ci]

@yunjiang29: all tests passed!

Full PR test history. Your PR dashboard.

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