Files
nixos-config/modules/nixos/syncthing.nix
2025-12-02 02:37:02 +01:00

62 lines
1.5 KiB
Nix

{
config,
lib,
...
}:
let
username = config.var.username;
hostname = config.var.hostname;
isOrion = hostname == "orion";
# On desktops, sync to home directory. On server, sync to filebrowser storage.
syncPath = if isOrion then "/var/lib/filebrowser/files" else "/home/${username}/sync";
group = if isOrion then "filebrowser" else "users";
in
{
# 1. Firewall rules for synchronization
networking.firewall = {
allowedTCPPorts = [ 22000 ];
allowedUDPPorts = [
22000
21027
];
};
# 3. Syncthing Service Configuration
services.syncthing = {
enable = true;
user = username;
group = group;
overrideDevices = true; # Overrides any devices added via Web UI
overrideFolders = true; # Overrides any folders added via Web UI
settings = {
devices = config.var.syncthing.devices;
folders = {
"sync" = {
path = syncPath;
devices = builtins.attrNames config.var.syncthing.devices; # Share with all defined devices
# Ensure new files are readable by the group (chmod 770 approx)
ignorePerms = false;
};
};
gui = {
# access the GUI on localhost:8384
theme = "black";
};
};
};
# 4. Permission Hardening for Orion
# Force syncthing to write files with group-write permissions (007 umask = 770 perms)
systemd.services.syncthing.serviceConfig.UMask = lib.mkIf isOrion "0007";
systemd.tmpfiles.rules = [
"d /var/lib/syncthing 0700 ${username} ${group} -"
];
}