140 lines
3.5 KiB
Nix
140 lines
3.5 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.cgminer;
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convType = with builtins;
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v: if isBool v then boolToString v else toString v;
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mergedHwConfig =
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mapAttrsToList (n: v: ''"${n}": "${(concatStringsSep "," (map convType v))}"'')
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(foldAttrs (n: a: [n] ++ a) [] cfg.hardware);
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mergedConfig = with builtins;
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mapAttrsToList (n: v: ''"${n}": ${if isBool v then "" else ''"''}${convType v}${if isBool v then "" else ''"''}'')
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cfg.config;
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cgminerConfig = pkgs.writeText "cgminer.conf" ''
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{
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${concatStringsSep ",\n" mergedHwConfig},
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${concatStringsSep ",\n" mergedConfig},
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"pools": [
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${concatStringsSep ",\n"
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(map (v: ''{"url": "${v.url}", "user": "${v.user}", "pass": "${v.pass}"}'')
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cfg.pools)}]
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}
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'';
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in
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{
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###### interface
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options = {
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services.cgminer = {
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enable = mkEnableOption "cgminer, an ASIC/FPGA/GPU miner for bitcoin and litecoin";
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package = mkOption {
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default = pkgs.cgminer;
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defaultText = "pkgs.cgminer";
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description = "Which cgminer derivation to use.";
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type = types.package;
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};
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user = mkOption {
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default = "cgminer";
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description = "User account under which cgminer runs";
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};
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pools = mkOption {
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default = []; # Run benchmark
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description = "List of pools where to mine";
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example = [{
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url = "http://p2pool.org:9332";
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username = "17EUZxTvs9uRmPsjPZSYUU3zCz9iwstudk";
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password="X";
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}];
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};
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hardware = mkOption {
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default = []; # Run without options
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description= "List of config options for every GPU";
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example = [
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{
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intensity = 9;
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gpu-engine = "0-985";
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gpu-fan = "0-85";
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gpu-memclock = 860;
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gpu-powertune = 20;
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temp-cutoff = 95;
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temp-overheat = 85;
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temp-target = 75;
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}
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{
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intensity = 9;
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gpu-engine = "0-950";
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gpu-fan = "0-85";
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gpu-memclock = 825;
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gpu-powertune = 20;
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temp-cutoff = 95;
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temp-overheat = 85;
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temp-target = 75;
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}];
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};
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config = mkOption {
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default = {};
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description = "Additional config";
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example = {
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auto-fan = true;
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auto-gpu = true;
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expiry = 120;
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failover-only = true;
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gpu-threads = 2;
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log = 5;
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queue = 1;
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scan-time = 60;
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temp-histeresys = 3;
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};
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};
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};
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};
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###### implementation
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config = mkIf config.services.cgminer.enable {
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users.users = optionalAttrs (cfg.user == "cgminer") {
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cgminer = {
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uid = config.ids.uids.cgminer;
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description = "Cgminer user";
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};
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};
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environment.systemPackages = [ cfg.package ];
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systemd.services.cgminer = {
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path = [ pkgs.cgminer ];
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after = [ "network.target" "display-manager.service" ];
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wantedBy = [ "multi-user.target" ];
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environment = {
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LD_LIBRARY_PATH = "/run/opengl-driver/lib:/run/opengl-driver-32/lib";
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DISPLAY = ":${toString config.services.xserver.display}";
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GPU_MAX_ALLOC_PERCENT = "100";
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GPU_USE_SYNC_OBJECTS = "1";
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};
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startLimitIntervalSec = 60; # 1 min
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serviceConfig = {
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ExecStart = "${pkgs.cgminer}/bin/cgminer --syslog --text-only --config ${cgminerConfig}";
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User = cfg.user;
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RestartSec = "30s";
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Restart = "always";
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};
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};
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};
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}
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