nix-bitcoin/modules/btcpayserver.nix

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{ config, lib, pkgs, ... }:
with lib;
let
options.services = {
nbxplorer = {
package = mkOption {
type = types.package;
default = nbPkgs.nbxplorer;
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description = "The package providing nbxplorer binaries.";
};
address = mkOption {
type = types.str;
default = "127.0.0.1";
description = "Address to listen on.";
};
port = mkOption {
type = types.port;
default = 24444;
description = "Port to listen on.";
};
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dataDir = mkOption {
type = types.path;
default = "/var/lib/nbxplorer";
description = "The data directory for nbxplorer.";
};
user = mkOption {
type = types.str;
default = "nbxplorer";
description = "The user as which to run nbxplorer.";
};
group = mkOption {
type = types.str;
default = cfg.nbxplorer.user;
description = "The group as which to run nbxplorer.";
};
enable = mkOption {
# This option is only used by netns-isolation
internal = true;
default = cfg.btcpayserver.enable;
};
enforceTor = nbLib.enforceTor;
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};
btcpayserver = {
enable = mkEnableOption "btcpayserver";
address = mkOption {
type = types.str;
default = "127.0.0.1";
description = "Address to listen on.";
};
port = mkOption {
type = types.port;
default = 23000;
description = "Port to listen on.";
};
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package = mkOption {
type = types.package;
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default = if cfg.btcpayserver.lbtc then
nbPkgs.btcpayserver.override { altcoinSupport = true; }
else
nbPkgs.btcpayserver;
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description = "The package providing btcpayserver binaries.";
};
dataDir = mkOption {
type = types.path;
default = "/var/lib/btcpayserver";
description = "The data directory for btcpayserver.";
};
lightningBackend = mkOption {
type = types.nullOr (types.enum [ "clightning" "lnd" ]);
default = null;
description = "The lightning node implementation to use.";
};
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lbtc = mkOption {
type = types.bool;
default = false;
description = "Enable liquid support in btcpayserver.";
};
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rootpath = mkOption {
type = types.nullOr types.str;
default = null;
example = "btcpayserver";
description = "The prefix for root-relative btcpayserver URLs.";
};
user = mkOption {
type = types.str;
default = "btcpayserver";
description = "The user as which to run btcpayserver.";
};
group = mkOption {
type = types.str;
default = cfg.btcpayserver.user;
description = "The group as which to run btcpayserver.";
};
enforceTor = nbLib.enforceTor;
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};
};
cfg = config.services;
nbLib = config.nix-bitcoin.lib;
nbPkgs = config.nix-bitcoin.pkgs;
inherit (config.services) bitcoind liquidd;
in {
inherit options;
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config = mkIf cfg.btcpayserver.enable {
services.bitcoind = {
enable = true;
rpc.users.btcpayserver = {
passwordHMACFromFile = true;
rpcwhitelist = cfg.bitcoind.rpc.users.public.rpcwhitelist ++ [
"setban"
"generatetoaddress"
"getpeerinfo"
];
};
listenWhitelisted = true;
};
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services.clightning.enable = mkIf (cfg.btcpayserver.lightningBackend == "clightning") true;
services.lnd = mkIf (cfg.btcpayserver.lightningBackend == "lnd") {
enable = true;
macaroons.btcpayserver = {
inherit (cfg.btcpayserver) user;
permissions = ''{"entity":"info","action":"read"},{"entity":"onchain","action":"read"},{"entity":"offchain","action":"read"},{"entity":"address","action":"read"},{"entity":"message","action":"read"},{"entity":"peers","action":"read"},{"entity":"signer","action":"read"},{"entity":"invoices","action":"read"},{"entity":"invoices","action":"write"},{"entity":"address","action":"write"}'';
};
};
services.liquidd = mkIf cfg.btcpayserver.lbtc {
enable = true;
listenWhitelisted = true;
};
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services.postgresql = {
enable = true;
ensureDatabases = [ "btcpaydb" ];
ensureUsers = [{
name = cfg.btcpayserver.user;
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ensurePermissions."DATABASE btcpaydb" = "ALL PRIVILEGES";
}];
};
systemd.tmpfiles.rules = [
"d '${cfg.nbxplorer.dataDir}' 0770 ${cfg.nbxplorer.user} ${cfg.nbxplorer.group} - -"
"d '${cfg.btcpayserver.dataDir}' 0770 ${cfg.btcpayserver.user} ${cfg.btcpayserver.group} - -"
];
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systemd.services.nbxplorer = let
configFile = builtins.toFile "config" ''
network=${bitcoind.network}
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btcrpcuser=${cfg.bitcoind.rpc.users.btcpayserver.name}
btcrpcurl=http://${nbLib.addressWithPort bitcoind.rpc.address cfg.bitcoind.rpc.port}
btcnodeendpoint=${nbLib.addressWithPort bitcoind.address bitcoind.whitelistedPort}
bind=${cfg.nbxplorer.address}
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port=${toString cfg.nbxplorer.port}
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${optionalString cfg.btcpayserver.lbtc ''
chains=btc,lbtc
lbtcrpcuser=${liquidd.rpcuser}
lbtcrpcurl=http://${nbLib.addressWithPort liquidd.rpc.address liquidd.rpc.port}
lbtcnodeendpoint=${nbLib.addressWithPort liquidd.address liquidd.whitelistedPort}
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''}
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'';
in rec {
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wantedBy = [ "multi-user.target" ];
requires = [ "bitcoind.service" ] ++ optional cfg.btcpayserver.lbtc "liquidd.service";
after = requires;
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preStart = ''
install -m 600 ${configFile} '${cfg.nbxplorer.dataDir}/settings.config'
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{
echo "btcrpcpassword=$(cat ${config.nix-bitcoin.secretsDir}/bitcoin-rpcpassword-btcpayserver)"
${optionalString cfg.btcpayserver.lbtc ''
echo "lbtcrpcpassword=$(cat ${config.nix-bitcoin.secretsDir}/liquid-rpcpassword)"
''}
} >> '${cfg.nbxplorer.dataDir}/settings.config'
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'';
serviceConfig = nbLib.defaultHardening // {
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ExecStart = ''
${cfg.nbxplorer.package}/bin/nbxplorer --conf=${cfg.nbxplorer.dataDir}/settings.config \
--datadir=${cfg.nbxplorer.dataDir}
'';
User = cfg.nbxplorer.user;
Restart = "on-failure";
RestartSec = "10s";
ReadWritePaths = cfg.nbxplorer.dataDir;
MemoryDenyWriteExecute = "false";
} // nbLib.allowedIPAddresses cfg.nbxplorer.enforceTor;
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};
systemd.services.btcpayserver = let
nbExplorerUrl = "http://${nbLib.addressWithPort cfg.nbxplorer.address cfg.nbxplorer.port}/";
nbExplorerCookie = "${cfg.nbxplorer.dataDir}/${bitcoind.makeNetworkName "Main" "RegTest"}/.cookie";
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configFile = builtins.toFile "config" (''
network=${bitcoind.network}
bind=${cfg.btcpayserver.address}
port=${toString cfg.btcpayserver.port}
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socksendpoint=${config.nix-bitcoin.torClientAddressWithPort}
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btcexplorerurl=${nbExplorerUrl}
btcexplorercookiefile=${nbExplorerCookie}
postgres=User ID=${cfg.btcpayserver.user};Host=/run/postgresql;Database=btcpaydb
'' + optionalString (cfg.btcpayserver.rootpath != null) ''
rootpath=${cfg.btcpayserver.rootpath}
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'' + optionalString (cfg.btcpayserver.lightningBackend == "clightning") ''
btclightning=type=clightning;server=unix:///${cfg.clightning.dataDir}/bitcoin/lightning-rpc
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'' + optionalString cfg.btcpayserver.lbtc ''
chains=btc,lbtc
lbtcexplorerurl=${nbExplorerUrl}
lbtcexplorercookiefile=${nbExplorerCookie}
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'');
lndConfig =
"btclightning=type=lnd-rest;" +
"server=https://${cfg.lnd.restAddress}:${toString cfg.lnd.restPort}/;" +
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"macaroonfilepath=/run/lnd/btcpayserver.macaroon;" +
"certthumbprint=";
in let self = {
wantedBy = [ "multi-user.target" ];
requires = [ "nbxplorer.service" "postgresql.service" ]
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++ optional (cfg.btcpayserver.lightningBackend != null) "${cfg.btcpayserver.lightningBackend}.service";
after = self.requires;
preStart = ''
install -m 600 ${configFile} '${cfg.btcpayserver.dataDir}/settings.config'
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${optionalString (cfg.btcpayserver.lightningBackend == "lnd") ''
{
echo -n "${lndConfig}"
${pkgs.openssl}/bin/openssl x509 -noout -fingerprint -sha256 -in ${config.services.lnd.certPath} \
| sed -e 's/.*=//;s/://g'
} >> '${cfg.btcpayserver.dataDir}/settings.config'
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''}
'';
serviceConfig = nbLib.defaultHardening // {
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ExecStart = ''
${cfg.btcpayserver.package}/bin/btcpayserver --conf='${cfg.btcpayserver.dataDir}/settings.config' \
--datadir='${cfg.btcpayserver.dataDir}'
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'';
User = cfg.btcpayserver.user;
Restart = "on-failure";
RestartSec = "10s";
ReadWritePaths = cfg.btcpayserver.dataDir;
MemoryDenyWriteExecute = "false";
} // nbLib.allowedIPAddresses cfg.btcpayserver.enforceTor;
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}; in self;
users.users.${cfg.nbxplorer.user} = {
isSystemUser = true;
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group = cfg.nbxplorer.group;
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extraGroups = [ "bitcoinrpc-public" ]
++ optional cfg.btcpayserver.lbtc liquidd.group;
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home = cfg.nbxplorer.dataDir;
};
users.groups.${cfg.nbxplorer.group} = {};
users.users.${cfg.btcpayserver.user} = {
isSystemUser = true;
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group = cfg.btcpayserver.group;
extraGroups = [ cfg.nbxplorer.group ]
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++ optional (cfg.btcpayserver.lightningBackend == "clightning") cfg.clightning.user;
home = cfg.btcpayserver.dataDir;
};
users.groups.${cfg.btcpayserver.group} = {};
nix-bitcoin.secrets = {
bitcoin-rpcpassword-btcpayserver = {
user = cfg.bitcoind.user;
group = cfg.nbxplorer.group;
};
bitcoin-HMAC-btcpayserver.user = cfg.bitcoind.user;
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};
nix-bitcoin.generateSecretsCmds.btcpayserver = ''
makeBitcoinRPCPassword btcpayserver
'';
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};
}