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|
{
config,
lib,
pkgs,
...
}:
let
cfg = config.services.llama-cpp;
in
{
imports = [
(lib.mkRenamedOptionModule
[ "services" "llama-cpp" "host" ]
[ "services" "llama-cpp" "settings" "host" ]
)
(lib.mkRenamedOptionModule
[ "services" "llama-cpp" "port" ]
[ "services" "llama-cpp" "settings" "port" ]
)
(lib.mkRenamedOptionModule
[ "services" "llama-cpp" "model" ]
[ "services" "llama-cpp" "settings" "model" ]
)
(lib.mkRenamedOptionModule
[ "services" "llama-cpp" "modelsDir" ]
[ "services" "llama-cpp" "settings" "models-dir" ]
)
(lib.mkRemovedOptionModule [ "services" "llama-cpp" "modelsPreset" ] ''
Using a Nix attribute set for configuring model presets is no longer
supported. However, it's possible to use
`services.llama-cpp.settings.models-preset` to provide a path to an INI
file with desired options.
'')
(lib.mkRemovedOptionModule [
"services"
"llama-cpp"
"extraFlags"
] "Use `services.llama-cpp.settings` instead")
];
options = {
services.llama-cpp = {
enable = lib.mkEnableOption "llama.cpp HTTP server";
package = lib.mkPackageOption pkgs "llama-cpp" { };
settings = lib.mkOption {
type = lib.types.submodule {
freeformType = lib.types.attrs;
options = {
host = lib.mkOption {
type = lib.types.str;
default = "127.0.0.1";
example = "0.0.0.0";
description = ''
IP address on which the server should listen on.
'';
};
port = lib.mkOption {
type = lib.types.port;
default = 8080;
example = 1337;
description = ''
Port on which the server should listen on.
'';
};
};
};
default = { };
example = {
host = "0.0.0.0";
port = 1337;
model = "/mnt/llms/Foo3.6-27B-UD-Q4_K_XL.gguf";
ctx-size = 252144;
temp = 0.6;
top-k = 20;
top-p = 0.95;
batch-size = 512;
ubatch-size = 256;
spec-type = "draft-mtp";
spec-draft-n-max = 2;
flash-attn = "on";
};
description = ''
Command-line arguments for `llama-server`.
See <https://github.com/ggml-org/llama.cpp/blob/master/tools/server/README.md>
for the full list of options.
'';
};
openFirewall = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Open ports in the firewall for the server.
'';
};
};
};
config = lib.mkIf cfg.enable {
systemd.services.llama-cpp = {
description = "llama.cpp HTTP server";
wants = [ "network.target" ];
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
ExecStart = toString [
(lib.getExe' cfg.package "llama-server")
(lib.cli.toCommandLine (optionName: {
option =
if lib.hasPrefix "-" optionName then
optionName
else if builtins.stringLength optionName > 1 then
"--${optionName}"
else
"-${optionName}";
sep = " ";
explicitBool = false;
formatArg = lib.generators.mkValueStringDefault { };
}) cfg.settings)
];
ExecReload = "${lib.getExe' pkgs.coreutils "kill"} -HUP $MAINPID";
Restart = "on-failure";
RestartSec = 300;
DynamicUser = true;
StateDirectory = "llama-cpp";
CacheDirectory = "llama-cpp";
WorkingDirectory = "/var/lib/llama-cpp";
Environment = [ "LLAMA_CACHE=/var/cache/llama-cpp" ];
AmbientCapabilities = [ "" ];
CapabilityBoundingSet = [ "" ];
LockPersonality = true;
MemoryDenyWriteExecute = true;
NoNewPrivileges = true;
PrivateDevices = false; # Required for GPU support.
PrivateMounts = true;
PrivateTmp = true;
PrivateUsers = true;
ProcSubset = "pid";
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
ProtectSystem = "strict";
RemoveIPC = true;
RestrictAddressFamilies = [
"AF_INET"
"AF_INET6"
"AF_UNIX"
];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
SystemCallArchitectures = "native";
SystemCallErrorNumber = "EPERM";
SystemCallFilter = [
"@system-service"
"~@privileged"
];
};
};
networking.firewall.allowedTCPPorts = lib.optional cfg.openFirewall cfg.settings.port;
};
meta.maintainers = with lib.maintainers; [
azahi
newam
];
}
|
