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75 lines
1.6 KiB
Nix
75 lines
1.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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stateDir = "/var/lib/foldingathome";
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cfg = config.services.foldingAtHome;
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fahUser = "foldingathome";
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in {
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###### interface
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options = {
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services.foldingAtHome = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable the Folding@Home to use idle CPU time.
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'';
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};
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nickname = mkOption {
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default = "Anonymous";
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description = ''
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A unique handle for statistics.
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'';
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};
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config = mkOption {
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default = "";
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description = ''
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Extra configuration. Contents will be added verbatim to the
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configuration file.
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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 cfg.enable {
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users.extraUsers = singleton
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{ name = fahUser;
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uid = config.ids.uids.foldingathome;
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description = "Folding@Home user";
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home = stateDir;
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};
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jobs.foldingAtHome =
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{ name = "foldingathome";
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startOn = "started network-interfaces";
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stopOn = "stopping network-interfaces";
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preStart =
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''
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mkdir -m 0755 -p ${stateDir}
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chown ${fahUser} ${stateDir}
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cp -f ${pkgs.writeText "client.cfg" cfg.config} ${stateDir}/client.cfg
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'';
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exec = "${pkgs.su}/bin/su -s ${pkgs.stdenv.shell} ${fahUser} -c 'cd ${stateDir}; ${pkgs.foldingathome}/bin/fah6'";
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};
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services.foldingAtHome.config = ''
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[settings]
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username=${cfg.nickname}
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'';
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};
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}
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