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