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nixpkgs/nixos/modules/services/networking/syncthing.nix
Peter Hoeg 1026bebee6
syncthing: use service files from upstream
Currently only for the user services as NixOS handles the named system
instances slightly differently.

syncthing and syncthing-inotify are done the same way.

There are 4 parts to this:

 1) Copy in the upstream unit files
 2) Make the nixos module use the definition from upstream
 3) Enable restarting of all instances (system and user) on resume
 4) Allow the traffic in the firewall on default ports if wanted

fixes 
2016-10-19 21:20:57 +02:00

161 lines
4.7 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.syncthing;
defaultUser = "syncthing";
in {
###### interface
options = {
services.syncthing = {
enable = mkEnableOption ''
Syncthing - the self-hosted open-source alternative
to Dropbox and Bittorrent Sync. Initial interface will be
available on http://127.0.0.1:8384/.
'';
useInotify = mkOption {
type = types.bool;
default = false;
description = "Provide syncthing-inotify as a service.";
};
systemService = mkOption {
type = types.bool;
default = true;
description = "Auto launch Syncthing as a system service.";
};
user = mkOption {
type = types.string;
default = defaultUser;
description = ''
Syncthing will be run under this user (user will be created if it doesn't exist.
This can be your user name).
'';
};
group = mkOption {
type = types.string;
default = "nogroup";
description = ''
Syncthing will be run under this group (group will not be created if it doesn't exist.
This can be your user name).
'';
};
all_proxy = mkOption {
type = types.nullOr types.string;
default = null;
example = "socks5://address.com:1234";
description = ''
Overwrites all_proxy environment variable for the syncthing process to
the given value. This is normaly used to let relay client connect
through SOCKS5 proxy server.
'';
};
dataDir = mkOption {
type = types.path;
default = "/var/lib/syncthing";
description = ''
Path where the settings and keys will exist.
'';
};
openDefaultPorts = mkOption {
type = types.bool;
default = false;
example = literalExample "true";
description = ''
Open the default ports in the firewall:
- TCP 22000 for transfers
- UDP 21027 for discovery
If multiple users are running syncthing on this machine, you will need to manually open a set of ports for each instance and leave this disabled.
Alternatively, if are running only a single instance on this machine using the default ports, enable this.
'';
};
package = mkOption {
type = types.package;
default = pkgs.syncthing;
defaultText = "pkgs.syncthing";
example = literalExample "pkgs.syncthing";
description = ''
Syncthing package to use.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
networking.firewall = mkIf cfg.openDefaultPorts {
allowedTCPPorts = [ 22000 ];
allowedUDPPorts = [ 21027 ];
};
systemd.packages = [ pkgs.syncthing ]
++ lib.optional cfg.useInotify pkgs.syncthing-inotify;
users = mkIf (cfg.user == defaultUser) {
extraUsers."${defaultUser}" =
{ group = cfg.group;
home = cfg.dataDir;
createHome = true;
uid = config.ids.uids.syncthing;
description = "Syncthing daemon user";
};
extraGroups."${defaultUser}".gid =
config.ids.gids.syncthing;
};
systemd.services = {
syncthing = mkIf cfg.systemService {
description = "Syncthing service";
after = [ "network.target" ];
environment = {
STNORESTART = "yes";
STNOUPGRADE = "yes";
inherit (cfg) all_proxy;
} // config.networking.proxy.envVars;
wants = mkIf cfg.useInotify [ "syncthing-inotify.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Restart = "on-failure";
SuccessExitStatus = "2 3 4";
RestartForceExitStatus="3 4";
User = cfg.user;
Group = cfg.group;
PermissionsStartOnly = true;
ExecStart = "${cfg.package}/bin/syncthing -no-browser -home=${cfg.dataDir}";
};
};
syncthing-resume = {
wantedBy = [ "suspend.target" ];
};
syncthing-inotify = mkIf (cfg.systemService && cfg.useInotify) {
description = "Syncthing Inotify File Watcher service";
after = [ "network.target" "syncthing.service" ];
requires = [ "syncthing.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
SuccessExitStatus = "2";
RestartForceExitStatus = "3";
Restart = "on-failure";
User = cfg.user;
ExecStart = "${pkgs.syncthing-inotify.bin}/bin/syncthing-inotify -home=${cfg.dataDir} -logflags=0";
};
};
};
};
}