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Nov 19, 2025
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move/consolidate installation requirements #2178

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move/consolidate installation requirements
alexakreizinger Nov 17, 2025
5afb575
add -dev suffixes
alexakreizinger Nov 17, 2025
36f1976
fix links
alexakreizinger Nov 17, 2025
f35d1ed
Update installation/downloads/source/build-and-install.md
alexakreizinger Nov 18, 2025
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Update installation/downloads/source/build-and-install.md
alexakreizinger Nov 19, 2025
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11 changes: 0 additions & 11 deletions installation/downloads.md
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Fluent Bit is compatible with most x86-based, x86_64-based, arm32v7-based, and arm64v8-based systems.

## Requirements

The Fluent Bit build process requires the following components:

- Compiler: GCC or clang
- CMake
- Flex and Bison: Required for [Stream Processor](../stream-processing/overview.md) or [Record Accessor](../administration/configuring-fluent-bit/classic-mode/record-accessor.md)
- Libyaml development headers and libraries

Certain features of Fluent Bit depend on additional third-party components. For example, output plugins with special backend libraries like Kafka include those libraries in the main source code repository.

## Build from source code

You can [build and install Fluent Bit from its source code](../installation/downloads/source.md). There are also platform-specific guides for building Fluent Bit from source on [macOS](../installation/downloads/macos.md#compile-from-source) and [Windows](../installation/downloads/windows.md#compile-from-source).
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16 changes: 11 additions & 5 deletions installation/downloads/source/build-and-install.md
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## Requirements

- CMake 3.12 or greater. You might need to use `cmake3` instead of `cmake`.
- Flex
- Bison 3 or greater
- YAML headers
- OpenSSL headers
To build and install Fluent Bit from source, you must also install the following packages:
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@cosmo0920 cosmo0920 Nov 18, 2025

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We need to clarify the minimum requirement of CMake version.
Currently, we use CMake 3.31.6 in our CI.
Plus, we're still supporting to compile on CentOS7.
We also use CMake 3.31.6 for that platform in CI.
So, the minimum requirements of CMake version could be become CMake 3.31.6 now.

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@alexakreizinger alexakreizinger Nov 18, 2025

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I can add that :) similarly, do you think we need to add minimum versions for any of these other libraries?

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@cosmo0920 cosmo0920 Nov 19, 2025

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I don't think so. We only need to add the minimum required version for CMake for now.


- `bison`
- `build-essentials`
- `cmake` (version 3.31.6 or later)
- `flex`
- `libssl-dev`
- `libyaml-dev`
- `pkg-config`

Additionally, certain [input](../pipeline/inputs.md) or [output](../pipeline/outputs.md) plugins might depend on additional components. For example, some plugins require Kafka.

## Prepare environment

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