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nixos/ollama: add option to set environment variables

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abysssol 2024-03-14 02:57:42 -04:00
parent 58bdbbaecb
commit b5e7a05bb7
1 changed files with 36 additions and 24 deletions
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60
nixos/modules/services/misc/ollama.nix
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@ -13,48 +13,60 @@ in
{
options = {
services.ollama = {
enable = lib.mkEnableOption (
lib.mdDoc "Server for local large language models"
);
enable = lib.mkEnableOption "ollama server for local large language models";
package = lib.mkPackageOption pkgs "ollama" { };
listenAddress = lib.mkOption {
type = types.str;
default = "127.0.0.1:11434";
description = lib.mdDoc ''
Specifies the bind address on which the ollama server HTTP interface listens.
example = "0.0.0.0:11111";
description = ''
The address which the ollama server HTTP interface binds and listens to.
'';
};
acceleration = lib.mkOption {
type = types.nullOr (types.enum [ "rocm" "cuda" ]);
default = null;
example = "rocm";
description = lib.mdDoc ''
Specifies the interface to use for hardware acceleration.
description = ''
What interface to use for hardware acceleration.
- `rocm`: supported by modern AMD GPUs
- `cuda`: supported by modern NVIDIA GPUs
'';
};
package = lib.mkPackageOption pkgs "ollama" { };
environmentVariables = lib.mkOption {
type = types.attrsOf types.str;
default = { };
example = {
HOME = "/tmp";
OLLAMA_LLM_LIBRARY = "cpu";
};
description = ''
Set arbitrary environment variables for the ollama service.
Be aware that these are only seen by the ollama server (systemd service),
not normal invocations like `ollama run`.
Since `ollama run` is mostly a shell around the ollama server, this is usually sufficient.
'';
};
};
};
config = lib.mkIf cfg.enable {
systemd = {
services.ollama = {
wantedBy = [ "multi-user.target" ];
description = "Server for local large language models";
after = [ "network.target" ];
environment = {
HOME = "%S/ollama";
OLLAMA_MODELS = "%S/ollama/models";
OLLAMA_HOST = cfg.listenAddress;
};
serviceConfig = {
ExecStart = "${lib.getExe ollamaPackage} serve";
WorkingDirectory = "/var/lib/ollama";
StateDirectory = [ "ollama" ];
DynamicUser = true;
};
systemd.services.ollama = {
description = "Server for local large language models";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
environment = cfg.environmentVariables // {
HOME = "%S/ollama";
OLLAMA_MODELS = "%S/ollama/models";
OLLAMA_HOST = cfg.listenAddress;
};
serviceConfig = {
ExecStart = "${lib.getExe ollamaPackage} serve";
WorkingDirectory = "%S/ollama";
StateDirectory = [ "ollama" ];
DynamicUser = true;
};
};