openshift-logging: Update loki-operator build to Go 1.26 and OCP 4.22

[xperimental]

/cc @btaani @JoaoBraveCoding
/assign @xperimental

[openshift-merge-bot]

[REHEARSALNOTIFIER]
@xperimental: 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
pull-ci-openshift-loki-main-build	openshift/loki	presubmit	Ci-operator config changed
pull-ci-openshift-loki-main-ci-index-loki-operator-bundle	openshift/loki	presubmit	Ci-operator config changed
pull-ci-openshift-loki-main-images	openshift/loki	presubmit	Ci-operator config changed
pull-ci-openshift-loki-main-lint	openshift/loki	presubmit	Ci-operator config changed
pull-ci-openshift-loki-main-test	openshift/loki	presubmit	Ci-operator config changed
pull-ci-openshift-loki-main-test-operator	openshift/loki	presubmit	Ci-operator config 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.

[btaani]

/lgtm

[openshift-merge-bot]

@btaani: your /pj-rehearse request was not processed because the request waited in queue for longer than 5 minutes. Please retry in a few minutes.

[coderabbitai]

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: c55904ee-3276-40f2-b7a7-2e96315cc721

📥 Commits

Reviewing files that changed from the base of the PR and between 6a2ca63 and c72a549.

📒 Files selected for processing (1)

• ci-operator/config/openshift/loki/openshift-loki-main.yaml

---

Walkthrough

This PR updates the OpenShift CI configuration for Loki to pin release versions from 4.21 to 4.22 across four configuration sections: base image name, build root golang version (also bumped to 1.26), latest release version, and operator-install test version. No structural or pipeline wiring changes are present.

Changes

Version Pin Updates

Layer / File(s)	Summary
CI version pins ci-operator/config/openshift/loki/openshift-loki-main.yaml	Base image name, build root image stream tag golang version, latest release version, and operator-install test version are updated from 4.21 to 4.22; golang bumped from 1.25 to 1.26.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• openshift/release#77759: Both PRs are version-bump related; the main PR updates Loki release/version pins to 4.22, while PR #77759 fixes multiple release-4.22 CI configs that incorrectly promoted/referenced the 5.0 target instead of 4.22.

Suggested labels

lgtm, rehearsals-ack

🚥 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 clearly summarizes the main changes: updating loki-operator to use Go 1.26 and target OCP 4.22, which matches the PR's objectives and the version bumps from 4.21 to 4.22 in the configuration file.
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 contains no Ginkgo tests. All test files use standard Go testing (func TestXxx). Check for Ginkgo test name stability is not applicable.
Test Structure And Quality	✅ Passed	PR contains only CI configuration YAML changes (version pin updates), no Ginkgo test code modifications. Check for test quality is not applicable.
Microshift Test Compatibility	✅ Passed	This PR only updates CI configuration YAML files (versions and build flags); no new Ginkgo e2e tests are added. The check is not applicable.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	PR only modifies CI configuration YAML files (version pins, base images, Go 1.26 compatibility) with no new Ginkgo e2e tests added. Check requires new tests to apply.
Topology-Aware Scheduling Compatibility	✅ Passed	PR updates only CI configuration (ci-operator config YAML) with version bumps from OCP 4.21 to 4.22 and Go 1.26. No deployment manifests, operator code, or scheduling constraints are introduced.
Ote Binary Stdout Contract	✅ Passed	PR modifies only CI configuration files (YAML), not source code. OTE Binary Stdout Contract check applies to source code violations, not infrastructure configuration changes.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	No new Ginkgo e2e tests are added; PR contains only YAML CI configuration updates for loki-operator version pins and OCP 4.22 targeting.
No-Weak-Crypto	✅ Passed	PR modifies only CI configuration YAML file with version pins; contains no cryptographic code, algorithms, or security-sensitive patterns to check.
Container-Privileges	✅ Passed	This PR modifies an OpenShift CI configuration file without Kubernetes manifests. No privileged containers, host access, or escalation settings found.
No-Sensitive-Data-In-Logs	✅ Passed	The PR modifies a CI configuration file that contains no sensitive data exposure (no passwords, tokens, API keys, PII, session IDs, or customer data) in logging or any other context.

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✨ Finishing Touches

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---

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[btaani]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: btaani, xperimental

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

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Details

Needs approval from an approver in each of these files:

• ci-operator/config/openshift/loki/OWNERS [xperimental]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[xperimental]

/pj-rehearse auto-ack

[openshift-merge-bot]

@coderabbitai[bot]: your /pj-rehearse request was not processed because the request waited in queue for longer than 5 minutes. Please retry in a few minutes.

[openshift-merge-bot]

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

[openshift-ci]

@xperimental: all tests passed!

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