OSAC-360: Update Go version in osac-project installer config

[adriengentil]

Summary by CodeRabbit

This PR updates the Go compiler version used in the OSAC Installer's CI pipeline. Specifically, it modifies the osac-project-osac-installer CI configuration to use a newer OpenShift build root image: the builder image is upgraded from Go 1.25 with OpenShift 4.21 (rhel-9-release-golang-1.25-openshift-4.21) to Go 1.26 with OpenShift 5.0 (rhel-9-release-golang-1.26-openshift-5.0).

This change affects the build environment for all OSAC Installer CI jobs (presubmits, postsubmits, and periodics), ensuring the project builds and tests against the newer Go version and OpenShift runtime.

[openshift-ci-robot]

@adriengentil: This pull request references OSAC-360 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 task to target the "5.0.0" version, but no target version was set.

Details

In response to this:

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.

[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: ad360090-6674-4629-a723-cf3466ff22a4

📥 Commits

Reviewing files that changed from the base of the PR and between a3a41a9 and b73da73.

📒 Files selected for processing (1)

• ci-operator/config/osac-project/osac-installer/osac-project-osac-installer-main.yaml

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Walkthrough

This pull request updates the OpenShift CI operator build configuration for the osac-installer project, changing the build_root image stream tag from the Go 1.25/OpenShift 4.21 builder to the Go 1.26/OpenShift 5.0 builder in the main branch pipeline configuration.

Changes

Build Image Configuration Update

Layer / File(s)	Summary
build_root image version upgrade ci-operator/config/osac-project/osac-installer/osac-project-osac-installer-main.yaml	The build_root image stream tag is updated to use the RHEL 9 + Go 1.26 + OpenShift 5.0 builder image, replacing the previous Go 1.25 + OpenShift 4.21 tag on line 21.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• openshift/release#79736: Updates the same rhel-9-release-golang-1.26-openshift-5.0 builder image tag for a different build configuration.
• openshift/release#79717: Upgrades the same Go 1.25/OCP 4.21 to Go 1.26/OCP 5.0 builder image in a different installer configuration YAML.

Suggested labels

lgtm, rehearsals-ack

Suggested reviewers

• jkhelil
• avinal

🚥 Pre-merge checks | ✅ 12

✅ Passed checks (12 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: updating the Go version in the osac-project installer configuration, which matches the file modification shown in the raw summary.
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	This PR modifies only CI configuration YAML (updating build_root image tags), not Ginkgo test code. The test name stability check is not applicable.
Test Structure And Quality	✅ Passed	PR modifies only a CI configuration YAML file and adds no Ginkgo test code; the check for Ginkgo test quality is not applicable to this PR.
Microshift Test Compatibility	✅ Passed	PR only updates CI operator build config (Go/OpenShift version), no Ginkgo e2e tests added; MicroShift compatibility check not applicable.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	No new Ginkgo e2e tests are added. PR only updates build config YAML, changing Go build image tag. SNO compatibility check not applicable.
Topology-Aware Scheduling Compatibility	✅ Passed	PR modifies only a CI build configuration file (build_root image tag update), not deployment manifests, operators, or controllers. No scheduling constraints are introduced.
Ote Binary Stdout Contract	✅ Passed	PR changes only a YAML CI configuration file (updating a build image tag), not application code. The OTE Binary Stdout Contract check is inapplicable to configuration-only changes.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	PR only modifies a CI build configuration YAML file (updating Go version), not Ginkgo e2e tests. Check is not applicable.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[adriengentil]

/cc @omer-vishlitzky

[adriengentil]

/pj-rehearse

[openshift-merge-bot]

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

[openshift-merge-bot]

[REHEARSALNOTIFIER]
@adriengentil: 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-osac-project-osac-installer-main-e2e-vmaas	osac-project/osac-installer	presubmit	Ci-operator config changed
pull-ci-osac-project-osac-installer-main-images	osac-project/osac-installer	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.

[omer-vishlitzky]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: adriengentil, omer-vishlitzky

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

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• ci-operator/config/osac-project/osac-installer/OWNERS [adriengentil,omer-vishlitzky]

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

[adriengentil]

/pj-rehearse ack

[openshift-merge-bot]

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