122 lines
3.7 KiB
Nix
122 lines
3.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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options.services.lightning-loop = {
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enable = mkEnableOption "Lightning Loop, a non-custodial off/on chain bridge";
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rpcAddress = mkOption {
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type = types.str;
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default = "localhost";
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description = "Address to listen for gRPC connections.";
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};
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rpcPort = mkOption {
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type = types.port;
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default = 11010;
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description = "Port to listen for gRPC connections.";
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};
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restAddress = mkOption {
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type = types.str;
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default = cfg.rpcAddress;
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description = "Address to listen for REST connections.";
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};
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restPort = mkOption {
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type = types.port;
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default = 8081;
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description = "Port to listen for REST connections.";
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};
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package = mkOption {
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type = types.package;
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default = config.nix-bitcoin.pkgs.lightning-loop;
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defaultText = "config.nix-bitcoin.pkgs.lightning-loop";
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description = "The package providing lightning-loop binaries.";
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};
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dataDir = mkOption {
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type = types.path;
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default = "/var/lib/lightning-loop";
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description = "The data directory for lightning-loop.";
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};
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proxy = mkOption {
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type = types.nullOr types.str;
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default = if cfg.tor.proxy then config.nix-bitcoin.torClientAddressWithPort else null;
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description = "host:port of SOCKS5 proxy for connnecting to the loop server.";
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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example = ''
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debuglevel=trace
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'';
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description = "Extra lines appended to the configuration file.";
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};
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cli = mkOption {
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default = pkgs.writeScriptBin "loop" ''
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${cfg.package}/bin/loop \
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--rpcserver ${nbLib.addressWithPort cfg.rpcAddress cfg.rpcPort} \
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--macaroonpath '${cfg.dataDir}/${network}/loop.macaroon' \
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--tlscertpath '${secretsDir}/loop-cert' "$@"
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'';
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defaultText = "(See source)";
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description = "Binary to connect with the lightning-loop instance.";
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};
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tor = nbLib.tor;
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};
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cfg = config.services.lightning-loop;
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nbLib = config.nix-bitcoin.lib;
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secretsDir = config.nix-bitcoin.secretsDir;
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lnd = config.services.lnd;
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network = config.services.bitcoind.network;
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configFile = builtins.toFile "loop.conf" ''
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datadir=${cfg.dataDir}
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network=${network}
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rpclisten=${cfg.rpcAddress}:${toString cfg.rpcPort}
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restlisten=${cfg.restAddress}:${toString cfg.restPort}
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logdir=${cfg.dataDir}/logs
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tlscertpath=${secretsDir}/loop-cert
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tlskeypath=${secretsDir}/loop-key
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lnd.host=${nbLib.addressWithPort lnd.rpcAddress lnd.rpcPort}
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lnd.macaroonpath=${lnd.networkDir}/admin.macaroon
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lnd.tlspath=${lnd.certPath}
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${optionalString (cfg.proxy != null) "server.proxy=${cfg.proxy}"}
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${cfg.extraConfig}
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'';
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in {
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inherit options;
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config = mkIf cfg.enable {
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services.lnd.enable = true;
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environment.systemPackages = [ cfg.package (hiPrio cfg.cli) ];
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systemd.tmpfiles.rules = [
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"d '${cfg.dataDir}' 0770 ${lnd.user} ${lnd.group} - -"
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];
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systemd.services.lightning-loop = {
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wantedBy = [ "multi-user.target" ];
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requires = [ "lnd.service" ];
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after = [ "lnd.service" ];
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serviceConfig = nbLib.defaultHardening // {
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ExecStart = "${cfg.package}/bin/loopd --configfile=${configFile}";
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User = lnd.user;
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Restart = "on-failure";
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RestartSec = "10s";
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ReadWritePaths = cfg.dataDir;
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} // nbLib.allowedIPAddresses cfg.tor.enforce;
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};
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nix-bitcoin.secrets = {
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loop-key.user = lnd.user;
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loop-cert.user = lnd.user;
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};
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nix-bitcoin.generateSecretsCmds.lightning-loop = ''
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makeCert loop '${optionalString (cfg.rpcAddress != "localhost") "IP:${cfg.rpcAddress}"}'
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'';
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};
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}
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