275 lines
9.3 KiB
Nix
275 lines
9.3 KiB
Nix
{ config, pkgs, lib, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.liquidd;
|
|
inherit (config) nix-bitcoin-services;
|
|
secretsDir = config.nix-bitcoin.secretsDir;
|
|
pidFile = "${cfg.dataDir}/liquidd.pid";
|
|
configFile = pkgs.writeText "elements.conf" ''
|
|
chain=liquidv1
|
|
${optionalString cfg.testnet "testnet=1"}
|
|
${optionalString (cfg.dbCache != null) "dbcache=${toString cfg.dbCache}"}
|
|
${optionalString (cfg.prune != null) "prune=${toString cfg.prune}"}
|
|
${optionalString (cfg.validatepegin != null) "validatepegin=${if cfg.validatepegin then "1" else "0"}"}
|
|
|
|
# Connection options
|
|
${optionalString cfg.listen "bind=${cfg.bind}"}
|
|
${optionalString (cfg.port != null) "port=${toString cfg.port}"}
|
|
${optionalString (cfg.proxy != null) "proxy=${cfg.proxy}"}
|
|
listen=${if cfg.listen then "1" else "0"}
|
|
|
|
# RPC server options
|
|
${optionalString (cfg.rpc.port != null) "rpcport=${toString cfg.rpc.port}"}
|
|
${concatMapStringsSep "\n"
|
|
(rpcUser: "rpcauth=${rpcUser.name}:${rpcUser.passwordHMAC}")
|
|
(attrValues cfg.rpc.users)
|
|
}
|
|
${lib.concatMapStrings (rpcbind: "rpcbind=${rpcbind}\n") cfg.rpcbind}
|
|
${lib.concatMapStrings (rpcallowip: "rpcallowip=${rpcallowip}\n") cfg.rpcallowip}
|
|
${optionalString (cfg.rpcuser != null) "rpcuser=${cfg.rpcuser}"}
|
|
${optionalString (cfg.rpcpassword != null) "rpcpassword=${cfg.rpcpassword}"}
|
|
${optionalString (cfg.mainchainrpchost != null) "mainchainrpchost=${cfg.mainchainrpchost}"}
|
|
|
|
# Extra config options (from liquidd nixos service)
|
|
${cfg.extraConfig}
|
|
'';
|
|
cmdlineOptions = concatMapStringsSep " " (arg: "'${arg}'") [
|
|
"-datadir=${cfg.dataDir}"
|
|
"-pid=${pidFile}"
|
|
];
|
|
hexStr = types.strMatching "[0-9a-f]+";
|
|
rpcUserOpts = { name, ... }: {
|
|
options = {
|
|
name = mkOption {
|
|
type = types.str;
|
|
example = "alice";
|
|
description = ''
|
|
Username for JSON-RPC connections.
|
|
'';
|
|
};
|
|
passwordHMAC = mkOption {
|
|
type = with types; uniq (strMatching "[0-9a-f]+\\$[0-9a-f]{64}");
|
|
example = "f7efda5c189b999524f151318c0c86$d5b51b3beffbc02b724e5d095828e0bc8b2456e9ac8757ae3211a5d9b16a22ae";
|
|
description = ''
|
|
Password HMAC-SHA-256 for JSON-RPC connections. Must be a string of the
|
|
format <SALT-HEX>$<HMAC-HEX>.
|
|
'';
|
|
};
|
|
};
|
|
config = {
|
|
name = mkDefault name;
|
|
};
|
|
};
|
|
in {
|
|
options = {
|
|
|
|
services.liquidd = {
|
|
enable = mkEnableOption "Liquid sidechain";
|
|
|
|
extraConfig = mkOption {
|
|
type = types.lines;
|
|
default = "";
|
|
example = ''
|
|
par=16
|
|
rpcthreads=16
|
|
logips=1
|
|
|
|
'';
|
|
description = "Additional configurations to be appended to <filename>elements.conf</filename>.";
|
|
};
|
|
dataDir = mkOption {
|
|
type = types.path;
|
|
default = "/var/lib/liquidd";
|
|
description = "The data directory for liquidd.";
|
|
};
|
|
bind = mkOption {
|
|
type = types.str;
|
|
default = "127.0.0.1";
|
|
description = ''
|
|
Bind to given address and always listen on it.
|
|
'';
|
|
};
|
|
|
|
user = mkOption {
|
|
type = types.str;
|
|
default = "liquid";
|
|
description = "The user as which to run liquidd.";
|
|
};
|
|
group = mkOption {
|
|
type = types.str;
|
|
default = cfg.user;
|
|
description = "The group as which to run liquidd.";
|
|
};
|
|
|
|
rpc = {
|
|
port = mkOption {
|
|
type = types.nullOr types.port;
|
|
default = null;
|
|
description = "Override the default port on which to listen for JSON-RPC connections.";
|
|
};
|
|
users = mkOption {
|
|
default = {};
|
|
example = {
|
|
alice.passwordHMAC = "f7efda5c189b999524f151318c0c86$d5b51b3beffbc02b724e5d095828e0bc8b2456e9ac8757ae3211a5d9b16a22ae";
|
|
bob.passwordHMAC = "b2dd077cb54591a2f3139e69a897ac$4e71f08d48b4347cf8eff3815c0e25ae2e9a4340474079f55705f40574f4ec99";
|
|
};
|
|
type = with types; loaOf (submodule rpcUserOpts);
|
|
description = ''
|
|
RPC user information for JSON-RPC connections.
|
|
'';
|
|
};
|
|
};
|
|
|
|
rpcbind = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ "127.0.0.1" ];
|
|
description = ''
|
|
Bind to given address to listen for JSON-RPC connections.
|
|
'';
|
|
};
|
|
rpcallowip = mkOption {
|
|
type = types.listOf types.str;
|
|
default = [ "127.0.0.1" ];
|
|
description = ''
|
|
Allow JSON-RPC connections from specified source.
|
|
'';
|
|
};
|
|
rpcuser = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = "Username for JSON-RPC connections";
|
|
};
|
|
rpcpassword = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = "Password for JSON-RPC connections";
|
|
};
|
|
mainchainrpchost = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = ''
|
|
The address which the daemon will try to connect to the trusted
|
|
mainchain daemon to validate peg-ins.
|
|
'';
|
|
};
|
|
|
|
testnet = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = "Whether to use the test chain.";
|
|
};
|
|
port = mkOption {
|
|
type = types.nullOr types.port;
|
|
default = null;
|
|
description = "Override the default port on which to listen for connections.";
|
|
};
|
|
proxy = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = "Connect through SOCKS5 proxy";
|
|
};
|
|
listen = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = ''
|
|
If enabled, the liquid service will listen.
|
|
'';
|
|
};
|
|
dbCache = mkOption {
|
|
type = types.nullOr (types.ints.between 4 16384);
|
|
default = null;
|
|
example = 4000;
|
|
description = "Override the default database cache size in megabytes.";
|
|
};
|
|
prune = mkOption {
|
|
type = types.nullOr (types.coercedTo
|
|
(types.enum [ "disable" "manual" ])
|
|
(x: if x == "disable" then 0 else 1)
|
|
types.ints.unsigned
|
|
);
|
|
default = null;
|
|
example = 10000;
|
|
description = ''
|
|
Reduce storage requirements by enabling pruning (deleting) of old
|
|
blocks. This allows the pruneblockchain RPC to be called to delete
|
|
specific blocks, and enables automatic pruning of old blocks if a
|
|
target size in MiB is provided. This mode is incompatible with -txindex
|
|
and -rescan. Warning: Reverting this setting requires re-downloading
|
|
the entire blockchain. ("disable" = disable pruning blocks, "manual"
|
|
= allow manual pruning via RPC, >=550 = automatically prune block files
|
|
to stay under the specified target size in MiB)
|
|
'';
|
|
};
|
|
validatepegin = mkOption {
|
|
type = types.nullOr types.bool;
|
|
default = null;
|
|
description = ''
|
|
Validate pegin claims. All functionaries must run this.
|
|
'';
|
|
};
|
|
cli = mkOption {
|
|
readOnly = true;
|
|
default = pkgs.writeScriptBin "elements-cli" ''
|
|
${cfg.cliExec} ${pkgs.nix-bitcoin.elementsd}/bin/elements-cli -datadir='${cfg.dataDir}' "$@"
|
|
'';
|
|
description = "Binary to connect with the liquidd instance.";
|
|
};
|
|
swapCli = mkOption {
|
|
default = pkgs.writeScriptBin "liquidswap-cli" ''
|
|
${cfg.cliExec} ${pkgs.nix-bitcoin.liquid-swap}/bin/liquidswap-cli -c '${cfg.dataDir}/elements.conf' "$@"
|
|
'';
|
|
description = "Binary for managing liquid swaps.";
|
|
};
|
|
inherit (nix-bitcoin-services) cliExec;
|
|
enforceTor = nix-bitcoin-services.enforceTor;
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
environment.systemPackages = [
|
|
pkgs.nix-bitcoin.elementsd
|
|
(hiPrio cfg.cli)
|
|
(hiPrio cfg.swapCli)
|
|
];
|
|
|
|
systemd.tmpfiles.rules = [
|
|
"d '${cfg.dataDir}' 0770 ${cfg.user} ${cfg.group} - -"
|
|
];
|
|
|
|
systemd.services.liquidd = {
|
|
description = "Elements daemon providing access to the Liquid sidechain";
|
|
requires = [ "bitcoind.service" ];
|
|
after = [ "bitcoind.service" ];
|
|
wantedBy = [ "multi-user.target" ];
|
|
preStart = ''
|
|
cp '${configFile}' '${cfg.dataDir}/elements.conf'
|
|
chmod 640 '${cfg.dataDir}/elements.conf'
|
|
chown -R '${cfg.user}:${cfg.group}' '${cfg.dataDir}'
|
|
echo "rpcpassword=$(cat ${secretsDir}/liquid-rpcpassword)" >> '${cfg.dataDir}/elements.conf'
|
|
echo "mainchainrpcpassword=$(cat ${secretsDir}/bitcoin-rpcpassword-public)" >> '${cfg.dataDir}/elements.conf'
|
|
'';
|
|
serviceConfig = nix-bitcoin-services.defaultHardening // {
|
|
Type = "simple";
|
|
User = "${cfg.user}";
|
|
Group = "${cfg.group}";
|
|
ExecStart = "${pkgs.nix-bitcoin.elementsd}/bin/elementsd ${cmdlineOptions}";
|
|
PIDFile = "${pidFile}";
|
|
Restart = "on-failure";
|
|
ReadWritePaths = "${cfg.dataDir}";
|
|
} // (if cfg.enforceTor
|
|
then nix-bitcoin-services.allowTor
|
|
else nix-bitcoin-services.allowAnyIP
|
|
);
|
|
};
|
|
users.users.${cfg.user} = {
|
|
group = cfg.group;
|
|
extraGroups = [ "bitcoinrpc" ];
|
|
description = "Liquid sidechain user";
|
|
};
|
|
users.groups.${cfg.group} = {};
|
|
nix-bitcoin.secrets.liquid-rpcpassword.user = "liquid";
|
|
};
|
|
}
|