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nixpkgs/pkgs/by-name/fl/fluent-bit/package.nix
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2025-10-09 14:15:47 +02:00

134 lines
3.3 KiB
Nix

{
lib,
stdenv,
fetchFromGitHub,
nixosTests,
arrow-glib,
bison,
c-ares,
cmake,
flex,
jemalloc,
libbacktrace,
libbpf,
libpq,
libyaml,
luajit,
msgpack-c,
nghttp2,
nix-update-script,
openssl,
pkg-config,
rdkafka,
sqlite,
systemd,
versionCheckHook,
zstd,
}:
stdenv.mkDerivation (finalAttrs: {
pname = "fluent-bit";
version = "4.0.10";
src = fetchFromGitHub {
owner = "fluent";
repo = "fluent-bit";
tag = "v${finalAttrs.version}";
hash = "sha256-fYgZULGGlvuxgI5qOQ83AxcpEQQlw3ZpYLpu3hDJiSc=";
};
# The source build documentation covers some dependencies and CMake options.
#
# - Linux: https://docs.fluentbit.io/manual/installation/sources/build-and-install
# - Darwin: https://docs.fluentbit.io/manual/installation/macos#compile-from-source
#
# Unfortunately, fluent-bit vends many dependencies (e.g. luajit) as source files and tries to compile them by
# default, with none of their dependencies and CMake options documented.
#
# Fortunately, there's the undocumented `FLB_PREFER_SYSTEM_LIBS` CMake option to link against system libraries for
# some dependencies.
#
# https://github.com/fluent/fluent-bit/blob/v4.0.2/CMakeLists.txt#L245
strictDeps = true;
nativeBuildInputs = [
bison
cmake
flex
pkg-config
];
buildInputs = [
arrow-glib
c-ares
jemalloc
libbacktrace
libpq
libyaml
luajit
msgpack-c
nghttp2.dev
openssl
rdkafka
sqlite.dev
zstd
]
++ lib.optionals stdenv.hostPlatform.isLinux [
# libbpf doesn't build for Darwin yet.
libbpf
systemd
];
cmakeFlags = [
(lib.cmakeBool "FLB_RELEASE" true)
(lib.cmakeBool "FLB_PREFER_SYSTEM_LIBS" true)
]
++ lib.optionals stdenv.cc.isClang [
# `FLB_SECURITY` causes bad linker options for Clang to be set.
(lib.cmakeBool "FLB_SECURITY" false)
];
# `src/CMakeLists.txt` installs fluent-bit's systemd unit files at the path in the `SYSTEMD_UNITDIR` CMake variable.
#
# The initial value of `SYSTEMD_UNITDIR` is set in `cmake/FindJournald` which uses pkg-config to find the systemd
# unit directory in the systemd package's `systemdsystemunitdir` pkg-config variable. `src/CMakeLists.txt` only
# sets `SYSTEMD_UNITDIR` to `/lib/systemd/system` if it's unset.
#
# By default, this resolves to systemd's Nix store path which is immutable. Consequently, CMake fails when trying
# to install fluent-bit's systemd unit files to the systemd Nix store path.
#
# We fix this by setting the systemd package's `systemdsystemunitdir` pkg-config variable.
#
# https://man.openbsd.org/pkg-config.1#PKG_CONFIG_$PACKAGE_$VARIABLE
PKG_CONFIG_SYSTEMD_SYSTEMDSYSTEMUNITDIR = "${placeholder "out"}/lib/systemd/system";
outputs = [
"out"
"dev"
];
doInstallCheck = true;
nativeInstallCheckInputs = [ versionCheckHook ];
versionCheckProgramArg = "--version";
passthru = {
tests = lib.optionalAttrs stdenv.hostPlatform.isLinux {
inherit (nixosTests) fluent-bit;
};
updateScript = nix-update-script { };
};
meta = {
description = "Fast and lightweight logs and metrics processor for Linux, BSD, OSX and Windows";
homepage = "https://fluentbit.io";
license = lib.licenses.asl20;
mainProgram = "fluent-bit";
maintainers = with lib.maintainers; [ arianvp ];
};
})