Extra Credit

Fluent Bit

Official docs outline

14 sections
  1. What is Fluent Bit

    Lightweight telemetry agent for logs, metrics and traces.

  2. Key Concepts

    Events, tags, timestamps, records, matches and buffers.

  3. Data Pipeline

    Input, parser, filter, buffer, router, output flow.

  4. Inputs

    Input plugins for tail, systemd, forward, metrics.

  5. Parsers

    Structuring unstructured logs with JSON, regex and others.

  6. Filters

    Enrichment, modification, kubernetes, lua and grep filters.

  7. Outputs

    Destinations like Elasticsearch, Loki, S3, Kafka and more.

  8. Buffering and Storage

    Memory and filesystem buffering.

  9. Configuration

    YAML and classic configuration formats.

  10. Scheduling and Retries

    Output failures, retries and the scheduler.

  11. Backpressure

    Handling slow outputs and memory limits.

  12. Monitoring

    HTTP server, health and metrics.

  13. Performance Tips

    Multithreading and tuning.

  14. Transport Security

    TLS configuration for inputs and outputs.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

Versions and support

6 release lines
5.1.5 latest release, Oct 21, 2026
LineReleasedLatestSupport
5.1 Aug 6, 2026 5.1.5 Supported
5.0 Mar 31, 2026 5.0.11 Until Nov 6, 2026
4.2 Nov 11, 2025 4.2.8 Ended Jun 30, 2026
4.1 Sep 24, 2025 4.1.2 Ended Feb 11, 2026
4.0 Mar 29, 2025 4.0.14 Ended Dec 24, 2025
3.2 Nov 12, 2024 3.2.10 Ended Jun 29, 2025

Source: endoflife.date

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