{ config, options, pkgs, lib, ... }:
let
inherit (lib) mkEnableOption mkIf mkOption literalExpression types optionalString;
cfg = config.services.quorum;
opt = options.services.quorum;
dataDir = "/var/lib/quorum";
genesisFile = pkgs.writeText "genesis.json" (builtins.toJSON cfg.genesis);
staticNodesFile = pkgs.writeText "static-nodes.json" (builtins.toJSON cfg.staticNodes);
in {
options = {
services.quorum = {
enable = mkEnableOption "Quorum blockchain daemon";
user = mkOption {
type = types.str;
default = "quorum";
description = "The user as which to run quorum.";
};
group = mkOption {
type = types.str;
default = cfg.user;
defaultText = literalExpression "config.${opt.user}";
description = "The group as which to run quorum.";
};
port = mkOption {
type = types.port;
default = 21000;
description = "Override the default port on which to listen for connections.";
};
nodekeyFile = mkOption {
type = types.path;
default = "${dataDir}/nodekey";
description = "Path to the nodekey.";
};
staticNodes = mkOption {
type = types.listOf types.str;
default = [];
example = [ "enode://dd333ec28f0a8910c92eb4d336461eea1c20803eed9cf2c056557f986e720f8e693605bba2f4e8f289b1162e5ac7c80c914c7178130711e393ca76abc1d92f57@0.0.0.0:30303?discport=0" ];
description = "List of validator nodes.";
};
privateconfig = mkOption {
type = types.str;
default = "ignore";
description = "Configuration of privacy transaction manager.";
};
syncmode = mkOption {
type = types.enum [ "fast" "full" "light" ];
default = "full";
description = "Blockchain sync mode.";
};
blockperiod = mkOption {
type = types.int;
default = 5;
description = "Default minimum difference between two consecutive block's timestamps in seconds.";
};
permissioned = mkOption {
type = types.bool;
default = true;
description = "Allow only a defined list of nodes to connect.";
};
rpc = {
enable = mkOption {
type = types.bool;
default = true;
description = "Enable RPC interface.";
};
address = mkOption {
type = types.str;
default = "0.0.0.0";
description = "Listening address for RPC connections.";
};
port = mkOption {
type = types.port;
default = 22004;
description = "Override the default port on which to listen for RPC connections.";
};
api = mkOption {
type = types.str;
default = "admin,db,eth,debug,miner,net,shh,txpool,personal,web3,quorum,istanbul";
description = "API's offered over the HTTP-RPC interface.";
};
};
ws = {
enable = mkOption {
type = types.bool;
default = true;
description = "Enable WS-RPC interface.";
};
address = mkOption {
type = types.str;
default = "0.0.0.0";
description = "Listening address for WS-RPC connections.";
};
port = mkOption {
type = types.port;
default = 8546;
description = "Override the default port on which to listen for WS-RPC connections.";
};
api = mkOption {
type = types.str;
default = "admin,db,eth,debug,miner,net,shh,txpool,personal,web3,quorum,istanbul";
description = "API's offered over the WS-RPC interface.";
};
origins = mkOption {
type = types.str;
default = "*";
description = "Origins from which to accept websockets requests";
};
};
genesis = mkOption {
type = types.nullOr types.attrs;
default = null;
example = literalExpression '' {
alloc = {
a47385db68718bdcbddc2d2bb7c54018066ec111 = {
balance = "1000000000000000000000000000";
};
};
coinbase = "0x0000000000000000000000000000000000000000";
config = {
byzantiumBlock = 4;
chainId = 494702925;
eip150Block = 2;
eip155Block = 3;
eip158Block = 3;
homesteadBlock = 1;
isQuorum = true;
istanbul = {
epoch = 30000;
policy = 0;
};
};
difficulty = "0x1";
extraData = "0x0000000000000000000000000000000000000000000000000000000000000000f85ad59438f0508111273d8e482f49410ca4078afc86a961b8410000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c0";
gasLimit = "0x2FEFD800";
mixHash = "0x63746963616c2062797a616e74696e65201111756c7420746f6c6572616e6365";
nonce = "0x0";
parentHash = "0x0000000000000000000000000000000000000000000000000000000000000000";
timestamp = "0x00";
}'';
description = "Blockchain genesis settings.";
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.quorum ];
systemd.tmpfiles.rules = [
"d '${dataDir}' 0770 '${cfg.user}' '${cfg.group}' - -"
];
systemd.services.quorum = {
description = "Quorum daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
environment = {
PRIVATE_CONFIG = "${cfg.privateconfig}";
};
preStart = ''
if [ ! -d ${dataDir}/geth ]; then
if [ ! -d ${dataDir}/keystore ]; then
echo ERROR: You need to create a wallet before initializing your genesis file, run:
echo # su -s /bin/sh - quorum
echo $ geth --datadir ${dataDir} account new
echo and configure your genesis file accordingly.
exit 1;
fi
ln -s ${staticNodesFile} ${dataDir}/static-nodes.json
${pkgs.quorum}/bin/geth --datadir ${dataDir} init ${genesisFile}
fi
'';
serviceConfig = {
User = cfg.user;
Group = cfg.group;
ExecStart = ''${pkgs.quorum}/bin/geth \
--nodiscover \
--verbosity 5 \
--nodekey ${cfg.nodekeyFile} \
--istanbul.blockperiod ${toString cfg.blockperiod} \
--syncmode ${cfg.syncmode} \
${optionalString (cfg.permissioned)
"--permissioned"} \
--mine --minerthreads 1 \
${optionalString (cfg.rpc.enable)
"--rpc --rpcaddr ${cfg.rpc.address} --rpcport ${toString cfg.rpc.port} --rpcapi ${cfg.rpc.api}"} \
${optionalString (cfg.ws.enable)
"--ws --wsaddr ${cfg.ws.address} --wsport ${toString cfg.ws.port} --wsapi ${cfg.ws.api} --wsorigins ${cfg.ws.origins}"} \
--emitcheckpoints \
--datadir ${dataDir} \
--port ${toString cfg.port}'';
Restart = "on-failure";
# Hardening measures
PrivateTmp = "true";
ProtectSystem = "full";
NoNewPrivileges = "true";
PrivateDevices = "true";
MemoryDenyWriteExecute = "true";
};
};
users.users.${cfg.user} = {
name = cfg.user;
group = cfg.group;
description = "Quorum daemon user";
home = dataDir;
isSystemUser = true;
};
users.groups.${cfg.group} = {};
};
}