in_http: added missing config parameter descriptions.

[eschabell]

• 4 parameters need descriptions: http2, buffer_max_size, buffer_chunk_size, tag_key

Fixes #11239.

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Testing

• [N/A ] Example configuration file for the change
• [N/A ] Debug log output from testing the change
• [N/A ] Attached Valgrind output that shows no leaks or memory corruption was found
• [N/A ] Run local packaging test showing all targets (including any new ones) build.
• [N/A ] Set ok-package-test label to test for all targets (requires maintainer to do).

Documentation

• [X ] Documentation required for this feature

Doc fix PR: fluent/fluent-bit-docs#2267

Backporting

• [N/A ] Backport to latest stable release.

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

Summary by CodeRabbit

• Documentation
  • Clarified HTTP plugin configuration descriptions: added clear guidance for enabling HTTP/2, setting buffer maximum and initial sizes, specifying tag extraction keys, and formatting success header instructions.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

Updated the HTTP input plugin's static configuration map entries in plugins/in_http/http.c to add or replace empty/NULL descriptions with descriptive strings for http2, buffer_max_size, buffer_chunk_size, and tag_key; also standardized punctuation for success_header. No functional or API changes.

Changes

Cohort / File(s)	Summary
HTTP input plugin config strings plugins/in_http/http.c	Replaced NULL/empty descriptions with readable descriptions for http2, buffer_max_size, buffer_chunk_size, and tag_key; added trailing period to success_header description. No behavioral or API changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Pure documentation text updates in a single file; no logic or signature changes.
• Quick checklist: verify wording accuracy and build for string compilation.

Possibly related PRs

• in_blob: added missing configuration descriptions. Fixes #11204. #11206 — Similar change pattern: added missing description strings to a plugin's flb_config_map entries (in_blob/blob.c).

Suggested reviewers

• edsiper
• cosmo0920
• patrick-stephens

Poem

🐰 I nibble words from empty lines so small,

I plant clear meanings where blanks once did sprawl.
Now config fields glow, each label in its place—
A tidy hop of clarity, leaving no trace.

Pre-merge checks and finishing touches

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and accurately summarizes the main change: adding missing config parameter descriptions to the in_http plugin.
Linked Issues check	✅ Passed	The PR fully addresses issue #11239 by adding descriptions for all four missing configuration parameters: http2, buffer_max_size, buffer_chunk_size, and tag_key.
Out of Scope Changes check	✅ Passed	All changes in the PR are scoped to adding configuration parameter descriptions in the in_http plugin; no unrelated modifications were introduced.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

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Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between dd414bd and 5388919.

📒 Files selected for processing (1)

• plugins/in_http/http.c (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• plugins/in_http/http.c

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[eschabell]

@coderabbitai review

[coderabbitai]

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[edsiper]

fix typo in the commit history

[eschabell]

@edsiper fixed the typo.