hosts/losurdo/transmission.nix

   1 { pkgs, lib, config, hostName, inputs, ... }:
   2 let
   3   inherit (config.services) transmission;
   4   inherit (config.users) users;
   5   inherit (config.security) gnupg;
   6   netns = "riseup";
   7   wg-intra-peers = import (inputs.julm-nix + "/nixos/profiles/wireguard/wg-intra/peers.nix");
   8 in
   9 {
  10 users.groups.transmission.members = [
  11   users."julm".name
  12   users."sevy".name
  13 ];
  14 services.netns.namespaces.${netns}.nftables = ''
  15   add rule inet filter input tcp dport ${toString transmission.settings.peer-port} counter accept comment "Transmission"
  16   add rule inet filter input udp dport ${toString transmission.settings.peer-port} counter accept comment "Transmission"
  17   add rule inet filter output meta skuid ${transmission.user} counter accept comment "Transmission"
  18 '';
  19 #users.groups.keys.members = [ transmission.user ];
  20 security.gnupg.secrets."transmission/settings.json" = {
  21   user = transmission.user;
  22   systemdConfig.before = [ "transmission.service" ];
  23   systemdConfig.wantedBy = [ "transmission.service" ];
  24 };
  25 fileSystems."/var/lib/transmission" = {
  26   device = "${hostName}/var/torrents";
  27   fsType = "zfs";
  28 };
  29 systemd.services.transmission = {
  30   after = [
  31     "netns-${netns}.service"
  32     "zfs.target"
  33   ];
  34   requires = [
  35     "netns-${netns}.service"
  36     "zfs.target"
  37   ];
  38   startAt = "20:00:00";
  39   serviceConfig.NetworkNamespacePath = "/var/run/netns/${netns}";
  40 };
  41 systemd.sockets.proxy-to-transmission = {
  42   wantedBy = ["sockets.target"];
  43   listenStreams = ["${wg-intra-peers.${hostName}.ipv4}:9091"];
  44   socketConfig.FreeBind = true;
  45 };
  46 systemd.services.proxy-to-transmission = {
  47   requires = ["transmission.service"];
  48   after = ["transmission.service" "proxy-to-transmission.socket"];
  49   unitConfig.JoinsNamespaceOf = ["transmission.service"];
  50   serviceConfig = {
  51     ExecStart = "${pkgs.systemd}/lib/systemd/systemd-socket-proxyd 127.0.0.1:9091";
  52     PrivateNetwork = true;
  53     PrivateTmp = true;
  54   };
  55 };
  56 systemd.services.stop-transmission = {
  57   serviceConfig.Type = "oneshot";
  58   unitConfig.Conflicts = ["transmission.service"];
  59   startAt = "06..19:0,15,30,45:00";
  60   script = "true";
  61 };
  62 services.transmission = {
  63   enable = true;
  64   performanceNetParameters = true;
  65   credentialsFile = gnupg.secrets."transmission/settings.json".path;
  66   settings = {
  67     message-level = 2;
  68     download-dir = "/var/lib/transmission/downloaded";
  69     incomplete-dir = "/var/lib/transmission/.incoming";
  70     incomplete-dir-enabled = true;
  71     watch-dir = "/var/lib/transmission/.torrents";
  72     watch-dir-enabled = true;
  73     trash-original-torrent-files = false;
  74     preallocation = 0;
  75     umask = 7; # 007 octal, in decimal!
  76     download-queue-enabled = true;
  77     download-queue-size = 5;
  78     peer-id-ttl-hours = 6;
  79     peer-limit-global = 1000;
  80     peer-limit-per-torrent = 100;
  81
  82     peer-port = 6882;
  83     peer-port-random-on-start = false;
  84     encryption = 1;
  85     dht-enabled = true;
  86     lpd-enabled = false;
  87     pex-enabled = true;
  88     port-forwarding-enabled = true;
  89     scrape-paused-torrents-enabled = false;
  90     peer-socket-tos = "lowcost";
  91     queue-stalled-enabled = true;
  92     queue-stalled-minutes = 30;
  93     speed-limit-down-enabled = false;
  94     speed-limit-up = 50;
  95     speed-limit-up-enabled = true;
  96     alt-speed-enabled = true;
  97     alt-speed-time-enabled = true;
  98     alt-speed-down = 1000;
  99     alt-speed-up = 0;
 100     alt-speed-time-day = 127; # all days. 65; # weekend only
 101     alt-speed-time-begin = 360; # 06h00 local time
 102     alt-speed-time-end = 1260; # 21h00 local time
 103     ratio-limit = 4;
 104     ratio-limit-enabled = true;
 105
 106     rpc-enabled = true;
 107     rpc-bind-address = "127.0.0.1";
 108     rpc-port = 9091;
 109     rpc-whitelist = "127.0.0.1,${wg-intra-peers.${hostName}.ipv4}/24";
 110     rpc-whitelist-enabled = true;
 111     rpc-host-whitelist = "localhost,${hostName}.wg";
 112     rpc-host-whitelist-enabled = true;
 113     rpc-authentication-required = true;
 114   };
 115 };
 116 }