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syncthing: Connect devices over nebula instead of tailscale

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SebastianStork 2026-01-10 01:32:23 +01:00
parent bd196f1f27
commit 653ebd2c85
Signed by: SebastianStork
SSH key fingerprint: SHA256:tRrGdjYOwgHxpSc/wTOZQZEjxcb15P0tyXRsbAfd+2Q
1 changed files with 49 additions and 36 deletions
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85
modules/system/services/syncthing.nix
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@ -51,8 +51,8 @@ in
config = lib.mkIf cfg.enable { config = lib.mkIf cfg.enable {
assertions = [ assertions = [
{ {
assertion = config.custom.services.tailscale.enable; assertion = config.custom.services.nebula.node.enable;
message = "Syncthing requires tailscale"; message = "Syncthing requires nebula";
} }
{ {
assertion = cfg.isServer -> (cfg.gui.domain != null); assertion = cfg.isServer -> (cfg.gui.domain != null);
@ -86,48 +86,61 @@ in
}; };
}; };
services.syncthing = { services = {
enable = true; syncthing = {
enable = true;
user = lib.mkIf (!cfg.isServer) "seb"; user = lib.mkIf (!cfg.isServer) "seb";
group = lib.mkIf (!cfg.isServer) "users"; group = lib.mkIf (!cfg.isServer) "users";
dataDir = lib.mkIf (!cfg.isServer) "/home/seb"; dataDir = lib.mkIf (!cfg.isServer) "/home/seb";
guiAddress = "localhost:${toString cfg.gui.port}"; guiAddress = "localhost:${toString cfg.gui.port}";
cert = lib.mkIf useSopsSecrets config.sops.secrets."syncthing/cert".path; cert = lib.mkIf useSopsSecrets config.sops.secrets."syncthing/cert".path;
key = lib.mkIf useSopsSecrets config.sops.secrets."syncthing/key".path; key = lib.mkIf useSopsSecrets config.sops.secrets."syncthing/key".path;
settings = { settings = {
# Get the devices and their ids from the configs of the other hosts # Get the devices and their ids from the configs of the other hosts
devices = devices =
self.nixosConfigurations self.nixosConfigurations
|> lib.filterAttrs (name: _: name != config.networking.hostName) |> lib.filterAttrs (name: _: name != config.networking.hostName)
|> lib.filterAttrs (_: value: value.config.custom.services.syncthing.enable) |> lib.filterAttrs (_: value: value.config.custom.services.syncthing.enable)
|> lib.mapAttrs ( |> lib.mapAttrs (
name: value: { _: value: {
id = value.config.custom.services.syncthing.deviceId; id = value.config.custom.services.syncthing.deviceId;
addresses = [ "tcp://${name}.${config.custom.services.tailscale.domain}:${toString cfg.syncPort}" ]; addresses = [
} "tcp://${value.config.custom.services.nebula.node.address}:${toString cfg.syncPort}"
); ];
}
);
folders = folders =
cfg.folders cfg.folders
|> lib'.genAttrs (name: { |> lib'.genAttrs (name: {
path = "${dataDir}/${name}"; path = "${dataDir}/${name}";
devices = config.services.syncthing.settings.devices |> lib.attrNames; devices = config.services.syncthing.settings.devices |> lib.attrNames;
}); });
options = { options = {
listenAddress = "tcp://0.0.0.0:${toString cfg.syncPort}"; listenAddress = "tcp://${config.custom.services.nebula.node.address}:${toString cfg.syncPort}";
globalAnnounceEnabled = false; globalAnnounceEnabled = false;
localAnnounceEnabled = false; localAnnounceEnabled = false;
relaysEnabled = false; relaysEnabled = false;
natEnabled = false; natEnabled = false;
urAccepted = -1; urAccepted = -1;
autoUpgradeIntervalH = 0; autoUpgradeIntervalH = 0;
};
}; };
}; };
nebula.networks.mesh.firewall.inbound =
config.services.syncthing.settings.devices
|> lib.attrNames
|> lib.map (name: {
port = cfg.syncPort;
proto = "tcp";
host = name;
});
}; };
custom = { custom = {