docs: pipeline: outputs: chronicle: document Chronicle API support by cozybear-dev · Pull Request #2768 · fluent/fluent-bit-docs

cozybear-dev · 2026-10-09T20:51:04Z

Documents the new api parameter of the Chronicle output plugin, added in fluent/fluent-bit#12548 (fixes fluent/fluent-bit#12157).

Google SecOps is deprecating the legacy Ingestion API that the plugin uses today. New instances lose access on October 26, 2026 and the API shuts down on July 20, 2027. With api: chronicle, the plugin sends logs to the Chronicle API logs.import method instead.

Changes to pipeline/outputs/chronicle.md:

Describe the two APIs and add a deprecation warning hint linking to Google's migration guide.
Add a Google Cloud setup step for the chronicle.logs.import IAM permission.
Add the api parameter to the table, and explain what customer_id, project_id, region, and label mean with the Chronicle API.
Add a Chronicle API section covering the endpoint URL, how records map to Log fields (including collectionTime always being later than logEntryTime), the OAuth scope, the lack of a log_type check at startup, 4xx responses not being retried, and the 4 MB request limit.
Add a YAML and classic configuration example for the Chronicle API.

This depends on the code PR, so please add the waiting-on-code-merge label. A version annotation such as "Supported in vX.Y.Z or later" can go in once the release that ships it is known.

Validation:

Vale (repo .vale.ini): no alerts at any level.
markdownlint (repo .markdownlint.json): clean.
Examples extracted with scripts/extract-config.sh and run through fluent-bit --dry-run. With a build of the code PR branch, all 6 examples pass. With fluent/fluent-bit:latest, the new Chronicle API example logs unknown configuration property 'api', as expected until the code PR is released.

Summary by CodeRabbit

Documentation
- Expanded Chronicle output documentation to explain selecting the legacy or Chronicle API, including legacy API availability and shutdown dates.
- Added configuration guidance for API selection, compression, identifiers, regions, and Chronicle batch label requirements.
- Documented Chronicle API permissions, regional endpoint, request limits, timestamp handling, validation, and retry behavior, with configuration examples.

coderabbitai · 2026-10-09T20:51:22Z

No actionable comments were generated in the recent review. 🎉

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pipeline/outputs/chronicle.md

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📝 Walkthrough

The Chronicle output documentation describes the legacy and Chronicle API options, API-specific parameters and permissions, Chronicle request details, and configuration examples. It also lists the legacy API deprecation and shutdown dates.

Changes: Chronicle output API documentation

Layer / File(s)	Summary
Chronicle API selection and configuration `pipeline/outputs/chronicle.md`	Documents API selection and legacy dates. Describes Chronicle permissions, parameters, request fields, limits, and YAML and classic configuration examples.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Other

Suggested reviewers: cosmo0920, braydonk

Merge Risk: ⚪ Minimal · up to 4af81

No actionable merge-blocking documentation issue is established; the timestamp wording matches the Chronicle ImportLogs requirement.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Linked Issues check		Issue `#12157` requires `out_chronicle` to support both the legacy API and the Chronicle API during the transition. The whole-PR diff changes only `pipeline/outputs/chronicle.md`; it does not add the pl…	Include the `out_chronicle` implementation for both API modes and automated tests for Chronicle API behavior in this change, or review the code change separately as the change that satisfies issue `#12157`.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: documenting Chronicle API support for the Chronicle output plugin.
Out of Scope Changes check		The changes in `pipeline/outputs/chronicle.md` document the two APIs, migration requirements, configuration parameters, Chronicle API behavior, compression limits, and configuration examples. These ch…
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…

Full details: Linked Issues check

Explanation

Issue #12157 requires out_chronicle to support both the legacy API and the Chronicle API during the transition. The whole-PR diff changes only pipeline/outputs/chronicle.md; it does not add the plugin implementation or automated tests. The description references separate code PR #12548, but that reference does not establish that its code is present at this reviewed head.

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Actionable comments posted: 1

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Inline comments:
Review comments at @pipeline/outputs/chronicle.md:
- Line 68: Update the plugin mapping for collectionTime so it is strictly later
than logEntryTime, including for future-dated records, and revise the
collectionTime description to match the mapping’s behavior.

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pipeline/outputs/chronicle.md

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patrick-stephens

Looks good, send a poke when the code changes are merged so we can get this into docs once it is released.

eschabell

@cozybear-dev thanks for the docs PR, but would you please remove the co-authored line. You own the commit.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Document the new 'api' parameter, which selects between the deprecated legacy Ingestion API and the Chronicle API logs.import method, along with the IAM permission, request format, retry behavior, and an example configuration. Signed-off-by: cozybear-dev <7195866+cozybear-dev@users.noreply.github.com>

cozybear-dev · 2026-10-11T08:30:17Z

@eschabell Removed. The commit is now af73cad8f and no longer has the Co-Authored-By line. The page content is unchanged.

eschabell

@cozybear-dev thanks for the changes, this is ready and waiting on the code PR merging.

Document the new 'compress' parameter, which gzips the request body with both APIs, and note that the request size limits apply to the uncompressed data. Signed-off-by: cozybear-dev <7195866+cozybear-dev@users.noreply.github.com>

cozybear-dev · 2026-10-15T21:20:49Z

Added one commit (4af814b) for a new option in the code PR: compress, which gzips the request body with both APIs (asked for in fluent/fluent-bit#12548). It adds one row to the parameter table and notes that the 4 MB limit applies to the uncompressed data. The rest of the page is unchanged.

cozybear-dev requested review from a team, eschabell and patrick-stephens as code owners October 9, 2026 20:51

cozybear-dev mentioned this pull request Oct 9, 2026

out_chronicle: add support for the Chronicle API fluent/fluent-bit#12548

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cozybear-dev force-pushed the out_chronicle-chronicle-api branch from d7dfe41 to 70d7e55 Compare October 9, 2026 21:25

patrick-stephens approved these changes Oct 10, 2026

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patrick-stephens added the waiting-on-code-merge label Oct 10, 2026

eschabell self-assigned this Oct 11, 2026

eschabell requested changes Oct 11, 2026

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eschabell added waiting-for-user Waiting for user/contributors feedback or requested changes waiting-on-review Waiting on a review from mainteners labels Oct 11, 2026

cozybear-dev force-pushed the out_chronicle-chronicle-api branch from 70d7e55 to af73cad Compare October 11, 2026 08:30

eschabell approved these changes Oct 13, 2026

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eschabell removed waiting-for-user Waiting for user/contributors feedback or requested changes waiting-on-review Waiting on a review from mainteners labels Oct 13, 2026

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docs: pipeline: outputs: chronicle: document Chronicle API support - #2768

docs: pipeline: outputs: chronicle: document Chronicle API support#2768
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