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{ lib, config, pkgs, ... }:
with lib;
let
cfg = config.services.xmr-stak;
pkg = pkgs.xmr-stak.override {
inherit (cfg) openclSupport cudaSupport;
};
xmrConfArg = optionalString (cfg.configText != "") ("-c " +
pkgs.writeText "xmr-stak-config.txt" cfg.configText);
in
{
options = {
services.xmr-stak = {
enable = mkEnableOption "xmr-stak miner";
openclSupport = mkEnableOption "support for OpenCL (AMD/ATI graphics cards)";
cudaSupport = mkEnableOption "support for CUDA (NVidia graphics cards)";
extraArgs = mkOption {
type = types.listOf types.str;
default = [];
example = [ "--noCPU" "--currency monero" ];
description = "List of parameters to pass to xmr-stak.";
};
configText = mkOption {
type = types.lines;
default = "";
example = ''
"currency" : "monero",
"pool_list" :
[ { "pool_address" : "pool.supportxmr.com:5555",
"wallet_address" : "<long-hash>",
"pool_password" : "minername",
"pool_weight" : 1,
},
],
'';
description = ''
Verbatim xmr-stak config.txt. If empty, the <literal>-c</literal>
parameter will not be added to the xmr-stak command.
'';
};
};
};
config = mkIf cfg.enable {
systemd.services.xmr-stak = {
wantedBy = [ "multi-user.target" ];
bindsTo = [ "network-online.target" ];
after = [ "network-online.target" ];
environment = mkIf cfg.cudaSupport {
LD_LIBRARY_PATH = "${pkgs.linuxPackages_latest.nvidia_x11}/lib";
};
script = ''
exec ${pkg}/bin/xmr-stak ${xmrConfArg} ${concatStringsSep " " cfg.extraArgs}
'';
serviceConfig = let rootRequired = cfg.openclSupport || cfg.cudaSupport; in {
# xmr-stak generates cpu and/or gpu configuration files
WorkingDirectory = "/tmp";
PrivateTmp = true;
DynamicUser = !rootRequired;
LimitMEMLOCK = toString (1024*1024);
};
};
};
}
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