rpk: fix default flags for rpk debug bundle

[paulohtb6]

Description

Resolves https://redpandadata.atlassian.net/browse/DOC-1829
Review deadline:

Fix flags to match https://github.com/redpanda-data/redpanda/blob/dev/src/go/rpk/pkg/cli/debug/bundle/bundle.go

Page previews

Checks

• New feature
• Content gap
• Support Follow-up
• Small fix (typos, links, copyedits, etc)

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[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request updates the documentation for the rpk-debug-bundle command in the reference guide. The changes include: updating the default controller logs size limit from 20MB to 132MB, refining the logs-until parameter description with a Kubernetes-specific note, adjusting the metrics-interval default from 12s to 10s with formatting improvements, and clarifying Kubernetes-specific flags including the namespace flag (-n, --namespace) with a "Kubernetes only" designation.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

• This is a documentation-only change affecting a single .adoc file with straightforward updates to default values, parameter descriptions, and formatting consistency
• Changes are homogeneous in nature (similar types of updates across related parameter descriptions)

Possibly related PRs

• docs: update rpk v25.1.9 #1241: Also modifies the same rpk-debug-bundle.adoc file and includes updates to Kubernetes namespace flag formatting alongside other default value changes.

Suggested reviewers

• kbatuigas
• r-vasquez
• micheleRP

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes the main change: fixing default flags for the rpk debug bundle command.
Description check	✅ Passed	The description includes the required JIRA ticket reference, a clear purpose, and a source link, though page preview and check boxes remain incomplete.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix-default-flags

Warning

Review ran into problems

🔥 Problems

Errors were encountered while retrieving linked issues.

Errors (1)

• DOCS-1829: Request failed with status code 404

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

modules/reference/pages/rpk/rpk-debug/rpk-debug-bundle.adoc (1)

121-123: Added documentation for Kubernetes namespace flag.

The --namespace flag is now clearly documented with a "Kubernetes only" designation. However, note that formatting for Kubernetes-specific designations is currently inconsistent across the flags table: line 102 uses inline (k8s only) while this section and line 111 use a bold separate-line format. Consider standardizing this formatting across the entire table for consistency.

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 74b3334 and 15f3e2e.

📒 Files selected for processing (1)

• modules/reference/pages/rpk/rpk-debug/rpk-debug-bundle.adoc (2 hunks)

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🔇 Additional comments (4)

modules/reference/pages/rpk/rpk-debug/rpk-debug-bundle.adoc (4)

94-96: Updated controller logs default to match implementation.

The controller logs size limit has been updated from 20MB to 132MB, aligning the documentation with the actual default in the codebase.

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110-111: Clarified --logs-until limitation in Kubernetes environments.

The addition of the "Not supported in Kubernetes" note appropriately highlights that this flag (which uses journalctl format) only applies to bare-metal deployments.

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113-117: Updated --metrics-interval default to 10s with improved formatting.

The default has been updated from 12s to 10s and the description formatting has been clarified for consistency.

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94-123: Defaults verified and confirmed accurate.

Both documented defaults match the current implementation in the redpanda repository:

• --controller-logs-size-limit: documented as 132MB, implementation default is "132MB" ✓
• --metrics-interval: documented as 10s, implementation default is 10*time.Second ✓