replace hardcoded SlesCSDDriverVersions map with actual registry.suse.com check

[Priyankasaggu11929]

Motivation

follow up on point (1) - #562 (comment)

Technical Details

> kubectl get deviceconfig driver-test -n kube-amd-gpu -o jsonpath-as-json="{.status}"
[
    {
        "conditions": [
            {
                "lastTransitionTime": "2026-06-09T16:01:19Z",
                "message": "Validation failed: [driver driver version validation failed for node ip-172-xx-xx-xx: driver version \"31.40\" is not available for SLES 16.0 on registry.suse.com]",
                "reason": "ValidationError",
                "status": "True",
                "type": "Error"
            },
            {
                "lastTransitionTime": "2026-06-09T16:01:19Z",
                "message": "",
                "reason": "OperatorReady",
                "status": "False",
                "type": "Ready"
            }
        ]
    }
]

and cache logs would look like:

2026-06-09T14:16:28.13.083 INFO SLES driver version cache refreshed  {"codestream": "16.0", "version": "31.80", "available": false}
2026-06-09T14:16.28.13.100 INFO SLES driver version cache refreshed  {"codestream": "16.0", "version": "31.40", "available": false}
2026-06-09T14:16.28.13.120 INFO SLES driver version cache hit         {"codestream": "16.0", "version": "31.30", "available": true}
2026-06-09T14:16:28.54.100 INFO SLES driver version cache hit         {"codestream": "16.0", "version": "31.80", "available": false}

Test Plan

updated test in internal/utils_test.go, to rewrite TestValidateSLESDriverVersion to accomodate the new model of driver version validation

Test Result

> go test ./internal/ -run TestValidateSLESDriverVersion -v -count=1
=== RUN   TestValidateSLESDriverVersion
=== RUN   TestValidateSLESDriverVersion/non-SLES_OS_is_always_valid
=== RUN   TestValidateSLESDriverVersion/valid_version_for_SLES_15_SP7
=== RUN   TestValidateSLESDriverVersion/valid_version_for_SLES_16.0
=== RUN   TestValidateSLESDriverVersion/unavailable_version_on_SLES_16.0
=== RUN   TestValidateSLESDriverVersion/unavailable_version_on_SLES_15_SP7
--- PASS: TestValidateSLESDriverVersion (0.00s)
    --- PASS: TestValidateSLESDriverVersion/non-SLES_OS_is_always_valid (0.00s)
    --- PASS: TestValidateSLESDriverVersion/valid_version_for_SLES_15_SP7 (0.00s)
    --- PASS: TestValidateSLESDriverVersion/valid_version_for_SLES_16.0 (0.00s)
    --- PASS: TestValidateSLESDriverVersion/unavailable_version_on_SLES_16.0 (0.00s)
    --- PASS: TestValidateSLESDriverVersion/unavailable_version_on_SLES_15_SP7 (0.00s)
PASS
ok  	github.com/ROCm/gpu-operator/internal	0.017s

Submission Checklist

• Look over the contributing guidelines at https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

[yansun1996]

Hi @Priyankasaggu11929 , thanks for raising this PR, please check the comment regarding the possible situation in disconnected / air-gapped deployment.

[Copilot]

Pull request overview

This PR updates SLES driver version validation to stop relying on a hardcoded supported-versions map and instead validate availability by querying SUSE’s registry endpoints (with a short-lived cache), with corresponding unit test updates and air-gapped documentation adjustments.

Changes:

• Replace static SLES driver-version allowlist logic with a registry.suse.com availability check (plus caching).
• Update validator and tests to pass context.Context and to mock registry/auth endpoints.
• Adjust SLES prebuilt driver image resolution to support custom base registry mirroring, and document SLES-specific mirroring steps for air-gapped installs.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
internal/validator/utils.go	Switch validation from hardcoded map to context-aware registry availability checks; skip when using a custom base registry.
internal/utils.go	Implement SUSE registry token+manifest probing with caching; update SLES default mapper error handling.
internal/utils_test.go	Update unit test to use httptest servers for auth/registry and validate new error behavior.
internal/kmmmodule/kmmmodule.go	Build SUSE prebuilt driver image references using either default SUSE repo or a custom mirrored base registry.
docs/specialized_networks/airgapped-install.md	Document mirroring of SLES base/prebuilt driver images and configuring baseImageRegistry for SLES nodes.

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[yansun1996]

Hi @Priyankasaggu11929 2

1. Looks like there is a concurrent read/write issue suggested by the code review agent, can you check and fix it
2. there are some docs lint error, pls fix them

Error: docs/specialized_networks/airgapped-install.md:339 MD031/blanks-around-fences Fenced code blocks should be surrounded by blank lines [Context: "```"] https://github.com/DavidAnson/markdownlint/blob/v0.32.1/doc/md031.md
Error: docs/specialized_networks/airgapped-install.md:339 MD040/fenced-code-language Fenced code blocks should have a language specified [Context: "```"] https://github.com/DavidAnson/markdownlint/blob/v0.32.1/doc/md040.md
Error: Failed with exit code: 1

[Priyankasaggu11929]

Thanks for the review @yansun1996.

jfyi - i am on leave this week. i will get back to this next week.