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

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cozybear-dev:out_chronicle-chronicle-api

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@cozybear-dev cozybear-dev commented Oct 9, 2026 •

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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.

🤖 Generated with Claude Code

Summary by CodeRabbit

  • Documentation
    • Documented the selectable legacy and Chronicle APIs, including legacy API deprecation and shutdown dates and required Chronicle API permissions.
    • Clarified API-specific configuration, authentication scope, endpoint, log fields, timestamp handling, unsupported log-type validation, retry behavior, and the 4 MB request limit.
    • Added an example configuration for selecting the Chronicle API.

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Review in Change Stack →

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
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📝 Walkthrough

Walkthrough

The Chronicle output documentation now describes legacy and Chronicle API options, API-specific parameters and permissions, request details, and configuration examples. It also documents 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


Merge Risk: ⚪ Minimal · up to 70d7e

The timestamp documentation matches the inspected implementation, including its future-dated record behavior. No actionable merge risk remains.

Pre-merge checks | Passed 4 | Failed 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Linked Issues check Warning 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 adds no implementat… Include the reviewed out_chronicle implementation for the legacy and chronicle API modes and automated tests for the new mode, or assess the coding requirements in the code PR that contains those changes instead of this documentation-…
✅ Passed checks (4 passed)
Check name Status Explanation
Out of Scope Changes check Passed The whole-PR diff changes only pipeline/outputs/chronicle.md. The API descriptions, migration warning, IAM setup, parameter guidance, behavior notes, and configuration examples directly document the…
Docstring Coverage Passed 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…
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed The title clearly identifies the documentation change and the addition of Chronicle API support, which matches the main purpose of the pull request.

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 adds no implementation or automated tests. The description references code PR #12548, but that reference does not establish that the code is present at this reviewed head.

Resolution

Include the reviewed out_chronicle implementation for the legacy and chronicle API modes and automated tests for the new mode, or assess the coding requirements in the code PR that contains those changes instead of this documentation-only PR.



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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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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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Comment thread pipeline/outputs/chronicle.md Outdated
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.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Signed-off-by: cozybear-dev <7195866+cozybear-dev@users.noreply.github.com>
@cozybear-dev
cozybear-dev force-pushed the out_chronicle-chronicle-api branch from d7dfe41 to 70d7e55 Compare October 9, 2026 21:25
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out_chronicle: support the new Chronicle API

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