276 lines
8.5 KiB
Nix
276 lines
8.5 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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options.services.rtl = {
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enable = mkEnableOption "rtl";
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address = mkOption {
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type = types.str;
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default = "127.0.0.1";
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description = "HTTP server address.";
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};
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port = mkOption {
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type = types.port;
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default = 3000;
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description = "HTTP server port.";
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};
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dataDir = mkOption {
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type = types.path;
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default = "/var/lib/rtl";
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description = "The data directory for RTL.";
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};
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nodes = {
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clightning = mkOption {
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type = types.bool;
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default = false;
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description = "Enable the clightning node interface.";
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};
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lnd = mkOption {
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type = types.bool;
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default = false;
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description = "Enable the lnd node interface.";
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};
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reverseOrder = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Reverse the order of nodes shown in the UI.
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By default, clightning is shown before lnd.
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'';
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};
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};
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loop = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable swaps with lightning-loop.";
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};
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nightTheme = mkOption {
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type = types.bool;
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default = false;
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description = "Enable the Night UI Theme.";
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};
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extraCurrency = mkOption {
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type = with types; nullOr str;
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default = null;
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example = "USD";
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description = ''
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Currency code (ISO 4217) of the extra currency used for displaying balances.
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When set, this option enables online currency rate fetching.
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Warning: Rate fetching requires outgoing clearnet connections, so option
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`tor.enforce` is automatically disabled.
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'';
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};
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user = mkOption {
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type = types.str;
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default = "rtl";
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description = "The user as which to run RTL.";
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};
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group = mkOption {
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type = types.str;
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default = cfg.user;
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description = "The group as which to run RTL.";
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};
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cl-rest = {
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enable = mkOption {
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readOnly = true;
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type = types.bool;
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default = cfg.nodes.clightning;
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description = ''
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Enable c-lightning-REST server. This service is required for
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clightning support and is automatically enabled.
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'';
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};
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address = mkOption {
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readOnly = true;
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default = "0.0.0.0";
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description = ''
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Rest server address.
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Not configurable. The server always listens on all interfaces:
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https://github.com/Ride-The-Lightning/c-lightning-REST/issues/84
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'';
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};
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port = mkOption {
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type = types.port;
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default = 3001;
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description = "REST server port.";
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};
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docPort = mkOption {
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type = types.port;
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default = 4001;
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description = "Swagger API documentation server port.";
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};
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};
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tor.enforce = nbLib.tor.enforce;
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};
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cfg = config.services.rtl;
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nbLib = config.nix-bitcoin.lib;
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secretsDir = config.nix-bitcoin.secretsDir;
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node = { isLnd, index }: ''
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{
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"index": ${toString index},
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"lnNode": "Node",
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"lnImplementation": "${if isLnd then "LND" else "CLT"}",
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"Authentication": {
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${optionalString (isLnd && cfg.loop)
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''"swapMacaroonPath": "${lightning-loop.dataDir}/${bitcoind.network}",''
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}
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"macaroonPath": "${if isLnd
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then "${cfg.dataDir}/macaroons"
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else "${cl-rest.dataDir}/certs"
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}"
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},
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"Settings": {
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"userPersona": "OPERATOR",
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"themeMode": "${if cfg.nightTheme then "NIGHT" else "DAY"}",
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"themeColor": "PURPLE",
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${optionalString isLnd
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''"channelBackupPath": "${cfg.dataDir}/backup/lnd",''
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}
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"logLevel": "INFO",
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"fiatConversion": ${if cfg.extraCurrency == null then "false" else "true"},
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${optionalString (cfg.extraCurrency != null)
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''"currencyUnit": "${cfg.extraCurrency}",''
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}
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${optionalString (isLnd && cfg.loop)
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''"swapServerUrl": "https://${nbLib.addressWithPort lightning-loop.restAddress lightning-loop.restPort}",''
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}
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"lnServerUrl": "https://${
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if isLnd
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then nbLib.addressWithPort lnd.restAddress lnd.restPort
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else nbLib.addressWithPort cfg.cl-rest.address cfg.cl-rest.port
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}"
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}
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}
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'';
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nodes' = optional cfg.nodes.clightning (node { isLnd = false; index = 1; }) ++
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optional cfg.nodes.lnd (node { isLnd = true; index = 2; });
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nodes = if cfg.nodes.reverseOrder then reverseList nodes' else nodes';
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configFile = builtins.toFile "config" ''
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{
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"multiPass": "@multiPass@",
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"host": "${cfg.address}",
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"port": "${toString cfg.port}",
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"SSO": {
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"rtlSSO": 0
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},
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"nodes": [
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${builtins.concatStringsSep ",\n" nodes}
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]
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}
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'';
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cl-rest = {
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configFile = builtins.toFile "config" ''
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{
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"PORT": ${toString cfg.cl-rest.port},
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"DOCPORT": ${toString cfg.cl-rest.docPort},
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"LNRPCPATH": "${clightning.dataDir}/${bitcoind.makeNetworkName "bitcoin" "regtest"}/lightning-rpc",
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"PROTOCOL": "https",
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"EXECMODE": "production",
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"RPCCOMMANDS": ["*"]
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}
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'';
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# serviceConfig.StateDirectory
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dataDir = "/var/lib/cl-rest";
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};
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inherit (config.services)
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bitcoind
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lnd
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clightning
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lightning-loop;
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in {
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inherit options;
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config = mkIf cfg.enable {
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assertions = [
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{ assertion = cfg.nodes.clightning || cfg.nodes.lnd;
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message = ''
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RTL: At least one of `nodes.lnd` or `nodes.clightning` must be `true`.
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'';
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}
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];
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services.lnd.enable = mkIf cfg.nodes.lnd true;
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services.lightning-loop.enable = mkIf cfg.loop true;
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services.clightning.enable = mkIf cfg.nodes.clightning true;
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systemd.tmpfiles.rules = [
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"d '${cfg.dataDir}' 0770 ${cfg.user} ${cfg.group} - -"
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];
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services.rtl.tor.enforce = mkIf (cfg.extraCurrency != null) false;
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systemd.services.rtl = rec {
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wantedBy = [ "multi-user.target" ];
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requires = optional cfg.nodes.clightning "cl-rest.service" ++
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optional cfg.nodes.lnd "lnd.service";
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after = requires;
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environment.RTL_CONFIG_PATH = cfg.dataDir;
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serviceConfig = nbLib.defaultHardening // {
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ExecStartPre = [
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(nbLib.script "rtl-setup-config" ''
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<${configFile} sed "s|@multiPass@|$(cat ${secretsDir}/rtl-password)|" \
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> '${cfg.dataDir}/RTL-Config.json'
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'')
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] ++ optional cfg.nodes.lnd
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(nbLib.rootScript "rtl-copy-macaroon" ''
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install -D -o ${cfg.user} -g ${cfg.group} ${lnd.networkDir}/admin.macaroon \
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'${cfg.dataDir}/macaroons/admin.macaroon'
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'');
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ExecStart = "${pkgs.nodejs}/bin/node ${config.nix-bitcoin.pkgs.rtl}/lib/node_modules/rtl/rtl";
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# Show "rtl" instead of "node" in the journal
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SyslogIdentifier = "rtl";
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User = cfg.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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// nbLib.nodejs;
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};
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systemd.services.cl-rest = mkIf cfg.cl-rest.enable {
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wantedBy = [ "multi-user.target" ];
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requires = [ "clightning.service" ];
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after = [ "clightning.service" ];
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path = [ pkgs.openssl ];
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preStart = ''
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ln -sfn ${cl-rest.configFile} cl-rest-config.json
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'';
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environment.CL_REST_STATE_DIR = cl-rest.dataDir;
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serviceConfig = nbLib.defaultHardening // {
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StateDirectory = "cl-rest";
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# cl-rest reads the config file from the working directory
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WorkingDirectory = cl-rest.dataDir;
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ExecStart = "${pkgs.nodejs}/bin/node ${config.nix-bitcoin.pkgs.cl-rest}/lib/node_modules/c-lightning-rest/cl-rest";
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# Show "cl-rest" instead of "node" in the journal
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SyslogIdentifier = "cl-rest";
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User = cfg.user;
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Restart = "on-failure";
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RestartSec = "10s";
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} // nbLib.allowLocalIPAddresses
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// nbLib.nodejs;
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};
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users.users.${cfg.user} = {
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isSystemUser = true;
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group = cfg.group;
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extraGroups =
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# Enable clightning RPC access for cl-rest
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optional cfg.cl-rest.enable clightning.group ++
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optional cfg.loop lnd.group;
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};
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users.groups.${cfg.group} = {};
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nix-bitcoin.secrets.rtl-password.user = cfg.user;
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nix-bitcoin.generateSecretsCmds.rtl = ''
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makePasswordSecret rtl-password
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'';
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};
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}
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