[release-4.22] OCPBUGS-119976: fix(cpo): include unavailable components in KASLoadBalancerNotReachable message

[redhat-chai-bot]

This is a manual cherry-pick of #9232 to release-4.22.

The cherry-pick bot failed to create this backport automatically. Conflicts were resolved while preserving the intent of the fix.

Changes

• Ensures controlPlaneComponentsAvailable is queried when healthCheckErr != nil (not only when the HCP was not previously available)
• Appends component unavailability details to the health check error message so operators see the full picture when diagnosing KASLoadBalancerNotReachable conditions

Fixes https://redhat.atlassian.net/browse/OCPBUGS-119976

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@georgelipceanu requested in Slack thread

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[openshift-ci-robot]

@redhat-chai-bot: This pull request references Jira Issue OCPBUGS-119976, which is invalid:

• expected the bug to target either version "4.22.0." or "openshift-4.22.0.", but it targets "4.23.0" instead
• release note text must be set and not match the template OR release note type must be set to "Release Note Not Required". For more information you can reference the OpenShift Bug Process.

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

Details

In response to this:

This is a manual cherry-pick of #9232 to release-4.22.

The cherry-pick bot failed to create this backport automatically. Conflicts were resolved while preserving the intent of the fix.

Changes

• Ensures controlPlaneComponentsAvailable is queried when healthCheckErr != nil (not only when the HCP was not previously available)
• Appends component unavailability details to the health check error message so operators see the full picture when diagnosing KASLoadBalancerNotReachable conditions

Fixes https://redhat.atlassian.net/browse/OCPBUGS-119976

---

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@georgelipceanu requested in Slack thread

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[openshift-ci]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 36.72%. Comparing base (3004374) to head (7ccc0df).

Additional details and impacted files

@@              Coverage Diff              @@
##           release-4.22    #9502   +/-   ##
=============================================
  Coverage         36.71%   36.72%           
=============================================
  Files               777      777           
  Lines             95484    95487    +3     
=============================================
+ Hits              35061    35064    +3     
  Misses            57580    57580           
  Partials           2843     2843           

Files with missing lines	Coverage Δ
...ostedcontrolplane/hostedcontrolplane_controller.go	36.41% <100.00%> (+0.07%)	⬆️

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