94 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			2.7 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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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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      configFiles = mkOption {
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        type = types.attrsOf types.str;
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        default = {};
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        example = literalExample ''
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          {
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            "config.txt" = '''
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              "verbose_level" : 4,
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              "h_print_time" : 60,
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              "tls_secure_algo" : true,
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            ''';
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            "pools.txt" = '''
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              "currency" : "monero7",
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              "pool_list" :
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              [ { "pool_address" : "pool.supportxmr.com:443",
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                  "wallet_address" : "my-wallet-address",
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                  "rig_id" : "",
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                  "pool_password" : "nixos",
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                  "use_nicehash" : false,
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                  "use_tls" : true,
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                  "tls_fingerprint" : "",
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                  "pool_weight" : 23
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                },
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              ],
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            ''';
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          }
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        '';
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        description = ''
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          Content of config files like config.txt, pools.txt or cpu.txt.
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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 = "${pkgs.linuxPackages_latest.nvidia_x11}/lib";
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      };
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      preStart = concatStrings (flip mapAttrsToList cfg.configFiles (fn: content: ''
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        ln -sf '${pkgs.writeText "xmr-stak-${fn}" content}' '${fn}'
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      ''));
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      serviceConfig = let rootRequired = cfg.openclSupport || cfg.cudaSupport; in {
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        ExecStart = "${pkg}/bin/xmr-stak ${concatStringsSep " " cfg.extraArgs}";
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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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  imports = [
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    (mkRemovedOptionModule ["services" "xmr-stak" "configText"] ''
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      This option was removed in favour of `services.xmr-stak.configFiles`
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      because the new config file `pools.txt` was introduced. You are
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      now able to define all other config files like cpu.txt or amd.txt.
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    '')
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  ];
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}
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