nixpkgs/nixos/modules/services/networking/nix-serve.nix
2022-09-25 11:08:59 +02:00

101 lines
2.6 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.nix-serve;
in
{
options = {
services.nix-serve = {
enable = mkEnableOption (lib.mdDoc "nix-serve, the standalone Nix binary cache server");
port = mkOption {
type = types.port;
default = 5000;
description = lib.mdDoc ''
Port number where nix-serve will listen on.
'';
};
bindAddress = mkOption {
type = types.str;
default = "0.0.0.0";
description = lib.mdDoc ''
IP address where nix-serve will bind its listening socket.
'';
};
package = mkOption {
type = types.package;
default = pkgs.nix-serve;
defaultText = literalExpression "pkgs.nix-serve";
description = lib.mdDoc ''
nix-serve package to use.
'';
};
openFirewall = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Open ports in the firewall for nix-serve.";
};
secretKeyFile = mkOption {
type = types.nullOr types.str;
default = null;
description = lib.mdDoc ''
The path to the file used for signing derivation data.
Generate with:
```
nix-store --generate-binary-cache-key key-name secret-key-file public-key-file
```
For more details see {manpage}`nix-store(1)`.
'';
};
extraParams = mkOption {
type = types.separatedString " ";
default = "";
description = lib.mdDoc ''
Extra command line parameters for nix-serve.
'';
};
};
};
config = mkIf cfg.enable {
systemd.services.nix-serve = {
description = "nix-serve binary cache server";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = [ config.nix.package.out pkgs.bzip2.bin ];
environment.NIX_REMOTE = "daemon";
script = ''
${lib.optionalString (cfg.secretKeyFile != null) ''
export NIX_SECRET_KEY_FILE="$CREDENTIALS_DIRECTORY/NIX_SECRET_KEY_FILE"
''}
exec ${cfg.package}/bin/nix-serve --listen ${cfg.bindAddress}:${toString cfg.port} ${cfg.extraParams}
'';
serviceConfig = {
Restart = "always";
RestartSec = "5s";
User = "nix-serve";
Group = "nix-serve";
DynamicUser = true;
LoadCredential = lib.optionalString (cfg.secretKeyFile != null)
"NIX_SECRET_KEY_FILE:${cfg.secretKeyFile}";
};
};
networking.firewall = mkIf cfg.openFirewall {
allowedTCPPorts = [ cfg.port ];
};
};
}