USHIFT-6401: Add per-attempt timeout to RBAC bootstrap hook

[copejon]

Summary

• Backport of #TBD (main) to release-4.22
• Thread a 5s context.WithTimeout into each poll attempt of the RBAC bootstrap PostStartHook, preventing indefinite hangs when etcd is unresponsive during initial readiness checks
• Replace context.TODO() with the deadline-scoped context in List calls and prime functions
• Add klog.Warningf on timeout to distinguish deadline exceeded from other transient errors

Test plan

• CI passes on release-4.22
• Verify RBAC bootstrap completes normally on a clean MicroShift install
• Verify timeout logging appears when etcd is delayed

🤖 Generated with Claude Code

[openshift-ci-robot]

@copejon: This pull request references USHIFT-6401 which is a valid jira issue.

Details

In response to this:

Summary

• Backport of #TBD (main) to release-4.22
• Thread a 5s context.WithTimeout into each poll attempt of the RBAC bootstrap PostStartHook, preventing indefinite hangs when etcd is unresponsive during initial readiness checks
• Replace context.TODO() with the deadline-scoped context in List calls and prime functions
• Add klog.Warningf on timeout to distinguish deadline exceeded from other transient errors

Test plan

• CI passes on release-4.22
• Verify RBAC bootstrap completes normally on a clean MicroShift install
• Verify timeout logging appears when etcd is delayed

🤖 Generated with Claude Code

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: copejon

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