Update oc-mirror locations to CGW following openshift release decoupling

[dorzel]

Changes the oc-mirror download mirror location to the new content gateway (CGW) location following the decoupling of oc-mirror from the openshift release process in version 5.0+.

This is a DRAFT and SHOULD NOT BE MERGED until we know the precise url layout which is TBD. The current location is a stub.

See:

• https://redhat.atlassian.net/browse/CLID-525
• https://redhat.atlassian.net/browse/ART-20686

Summary by CodeRabbit

• Bug Fixes
  • Updated the default download location used for the mirror installer when no custom URL is set, improving install reliability.

[openshift-ci]

Skipping CI for Draft Pull Request.
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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: openshift/coderabbit/.coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: a4e9f0c3-ff71-4c12-add2-0c62dc9d36d0

📥 Commits

Reviewing files that changed from the base of the PR and between f0f5309 and 9860c7a.

📒 Files selected for processing (1)

• deploy/operator/mirror_utils.sh

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Walkthrough

The default value of OC_MIRROR_URL used by install_oc_mirrorv2 in deploy/operator/mirror_utils.sh was changed from an OpenShift stable-4.19 clients path to a cgw/oc-mirror path.

Changes

oc-mirror URL update

Layer / File(s)	Summary
Update default download URL deploy/operator/mirror_utils.sh	Fallback value of OC_MIRROR_URL changed from openshift-v4/.../stable-4.19/oc-mirror.tar.gz to cgw/oc-mirror/oc-mirror.tar.gz.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 15

✅ Passed checks (15 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly reflects the main change: moving oc-mirror downloads to CGW after release decoupling.
Description check	✅ Passed	The description includes the change summary, draft status, motivation, and linked issues, covering the required template well.
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	PASS: The PR only changes deploy/operator/mirror_utils.sh (a shell script); no Ginkgo test titles or test files were added or modified.
Test Structure And Quality	✅ Passed	PR only changes deploy/operator/mirror_utils.sh and adds no Ginkgo test files, so the test-structure checklist is not applicable.
Microshift Test Compatibility	✅ Passed	Only deploy/operator/mirror_utils.sh changed; no new Ginkgo tests or MicroShift-unsafe APIs/features were added.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	Only deploy/operator/mirror_utils.sh changed, updating a download URL; no new or modified Ginkgo tests were added.
Topology-Aware Scheduling Compatibility	✅ Passed	Only the oc-mirror download URL changed in a shell helper; no pod specs, selectors, affinities, replicas, or topology-aware scheduling logic were added.
Ote Binary Stdout Contract	✅ Passed	Diff only updates the oc-mirror download URL in a shell helper; no main/init/TestMain or stdout logging behavior changed.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	No Ginkgo/e2e tests were added; the PR only updates a shell script default download URL.
No-Weak-Crypto	✅ Passed	The PR only changes an oc-mirror download URL; no weak-crypto, custom crypto, or secret-comparison code is added.
Container-Privileges	✅ Passed	Only deploy/operator/mirror_utils.sh changed; no container/K8s manifests or privilege-related fields were added or modified.
No-Sensitive-Data-In-Logs	✅ Passed	The only change is a default oc-mirror download URL; no new logging or echo of secrets, tokens, PII, hostnames, or customer data was added.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dorzel
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