Add read-only local e2e test mode with backplane support

[nephomaniac]

Summary

• Add Ginkgo labels (read-only/mutating) to all test specs for filtering
• Add test/e2e/run-local.sh wrapper script for running tests locally against live clusters
• Add test/e2e/lint-labels.sh to enforce labels on new tests
• Support E2E_IMPERSONATE_USER for backplane cluster-admin impersonation
• Support E2E_READ_ONLY to make Prometheus client non-fatal (metric tests skip when prom unavailable)

Pipeline behavior is unchanged: no env vars set, no label filter, all tests run with strict assertions.

Usage

# Login to cluster, elevate if backplane
ocm backplane elevate "e2e testing"

# Run read-only tests (safe for any cluster)
./test/e2e/run-local.sh

# Run all tests (test clusters only)
./test/e2e/run-local.sh --all

# Run specific tests
./test/e2e/run-local.sh --focus "roles exist"

Test plan

• Tested on OLM cluster (stage) — 24 passed, 0 failed
• Tested on PKO cluster (integration) — 22 passed, 0 failed, 2 metric tests skipped
• lint-labels.sh passes
• CI pipeline passes

🤖 Generated with Claude Code

[nephomaniac]

/label tide/merge-method-squash

[coderabbitai]

Warning

Review limit reached

@nephomaniac, we couldn't start this review because you've reached your PR review rate limit.

More reviews will be available in 28 minutes and 59 seconds. Learn how PR review limits work.

Your organization has run out of usage credits. Purchase more in the billing tab.

⌛ How to resolve this issue?

After more reviews become available, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans include higher PR review limits than trial, open-source, and free plans. In all cases, reviews become available again over time. During sustained high-volume PR review activity, CodeRabbit may temporarily slow when the next review becomes available.

Please see our Fair Usage Limits Policy for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Central YAML (inherited)

Review profile: CHILL

Plan: Enterprise

Run ID: 86f0a5f3-b6fd-490a-9c94-6185b5f4d4ae

📥 Commits

Reviewing files that changed from the base of the PR and between d9f955a and 2763cf9.

📒 Files selected for processing (3)

• test/e2e/configure_alertmanager_operator_tests.go
• test/e2e/lint-labels.sh
• test/e2e/run-local.sh

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nephomaniac

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:

• OWNERS [nephomaniac]

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

[nephomaniac]

Holding during review + merge timing
/hold

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.29%. Comparing base (d9f955a) to head (2763cf9).
⚠️ Report is 42 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #512   +/-   ##
=======================================
  Coverage   68.29%   68.29%           
=======================================
  Files           8        8           
  Lines        1088     1088           
=======================================
  Hits          743      743           
  Misses        315      315           
  Partials       30       30           

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[openshift-ci]

PR needs rebase.

Details

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 kubernetes-sigs/prow repository.

[openshift-ci]

@nephomaniac: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-binary-build-success	2763cf9	link	true	/test e2e-binary-build-success
ci/prow/validate	2763cf9	link	true	/test validate
ci/prow/coverage	2763cf9	link	true	/test coverage
ci/prow/lint	2763cf9	link	true	/test lint
ci/prow/test	2763cf9	link	true	/test test

Full PR test history. Your PR dashboard.

Details

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 kubernetes-sigs/prow repository. I understand the commands that are listed here.