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{ config, lib, pkgs, ... }: | ||
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let | ||
cfg = config.services.wasabibackend; | ||
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inherit (lib) mkEnableOption mkIf mkOption optionalAttrs optionalString types; | ||
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confOptions = { | ||
BitcoinRpcConnectionString = "${cfg.rpc.user}:${cfg.rpc.password}"; | ||
} // optionalAttrs (cfg.network == "mainnet") { | ||
Network = "Main"; | ||
MainNetBitcoinP2pEndPoint = "${cfg.endpoint.ip}:${toString cfg.endpoint.port}"; | ||
MainNetBitcoinCoreRpcEndPoint = "${cfg.rpc.ip}:${toString cfg.rpc.port}"; | ||
} // optionalAttrs (cfg.network == "testnet") { | ||
Network = "TestNet"; | ||
TestNetBitcoinP2pEndPoint = "${cfg.endpoint.ip}:${toString cfg.endpoint.port}"; | ||
TestNetBitcoinCoreRpcEndPoint = "${cfg.rpc.ip}:${toString cfg.rpc.port}"; | ||
} // optionalAttrs (cfg.network == "regtest") { | ||
Network = "RegTest"; | ||
RegTestBitcoinP2pEndPoint = "${cfg.endpoint.ip}:${toString cfg.endpoint.port}"; | ||
RegTestBitcoinCoreRpcEndPoint = "${cfg.rpc.ip}:${toString cfg.rpc.port}"; | ||
}; | ||
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configFile = pkgs.writeText "wasabibackend.conf" (builtins.toJSON confOptions); | ||
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in { | ||
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options = { | ||
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services.wasabibackend = { | ||
enable = mkEnableOption "Wasabi backend service"; | ||
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dataDir = mkOption { | ||
type = types.path; | ||
default = "/var/lib/wasabibackend"; | ||
description = "The data directory for the Wasabi backend node."; | ||
}; | ||
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customConfigFile = mkOption { | ||
type = types.nullOr types.path; | ||
default = null; | ||
description = "Defines the path to a custom configuration file that is copied to the user's directory. Overrides any config options."; | ||
}; | ||
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network = mkOption { | ||
type = types.enum [ "mainnet" "testnet" "regtest" ]; | ||
default = "mainnet"; | ||
description = "The network to use for the Wasabi backend service."; | ||
}; | ||
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endpoint = { | ||
ip = mkOption { | ||
type = types.str; | ||
default = "127.0.0.1"; | ||
description = "IP address for P2P connection to bitcoind."; | ||
}; | ||
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port = mkOption { | ||
type = types.port; | ||
default = 8333; | ||
description = "Port for P2P connection to bitcoind."; | ||
}; | ||
}; | ||
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rpc = { | ||
ip = mkOption { | ||
type = types.str; | ||
default = "127.0.0.1"; | ||
description = "IP address for RPC connection to bitcoind."; | ||
}; | ||
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port = mkOption { | ||
type = types.port; | ||
default = 8332; | ||
description = "Port for RPC connection to bitcoind."; | ||
}; | ||
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user = mkOption { | ||
type = types.str; | ||
default = "bitcoin"; | ||
description = "RPC user for the bitcoin endpoint."; | ||
}; | ||
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password = mkOption { | ||
type = types.str; | ||
default = "password"; | ||
description = "RPC password for the bitcoin endpoint. Warning: this is stored in cleartext in the Nix store! Use <literal>configFile</literal> or <literal>passwordFile</literal> if needed."; | ||
}; | ||
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passwordFile = mkOption { | ||
type = types.nullOr types.path; | ||
default = null; | ||
description = "File that contains the password the the RPC user."; | ||
}; | ||
}; | ||
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user = mkOption { | ||
type = types.str; | ||
default = "wasabibackend"; | ||
description = "The user as which to run the wasabibackend node."; | ||
}; | ||
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group = mkOption { | ||
type = types.str; | ||
default = cfg.user; | ||
description = "The group as which to run the wasabibackend node."; | ||
}; | ||
}; | ||
}; | ||
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config = mkIf cfg.enable { | ||
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systemd.tmpfiles.rules = [ | ||
"d '${cfg.dataDir}' 0770 '${cfg.user}' '${cfg.group}' - -" | ||
]; | ||
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systemd.services.wasabibackend = { | ||
description = "wasabibackend server"; | ||
wantedBy = [ "multi-user.target" ]; | ||
after = [ "network-online.target" ]; | ||
environment = { | ||
DOTNET_PRINT_TELEMETRY_MESSAGE = "false"; | ||
DOTNET_CLI_TELEMETRY_OPTOUT = "true"; | ||
}; | ||
preStart = '' | ||
mkdir -p ${cfg.dataDir}/.walletwasabi/backend | ||
${if cfg.customConfigFile != null then '' | ||
cp -v ${cfg.customConfigFile} ${cfg.dataDir}/.walletwasabi/backend/Config.json | ||
'' else '' | ||
cp -v ${configFile} ${cfg.dataDir}/.walletwasabi/backend/Config.json | ||
${optionalString (cfg.rpc.passwordFile != null) '' | ||
CONFIGTMP=$(mktemp) | ||
cat ${cfg.dataDir}/.walletwasabi/backend/Config.json | ${pkgs.jq}/bin/jq --arg rpconnection "${cfg.rpc.user}:$(cat "${cfg.rpc.passwordFile}")" '. + { BitcoinRpcConnectionString: $rpconnection }' > $CONFIGTMP | ||
mv $CONFIGTMP ${cfg.dataDir}/.walletwasabi/backend/Config.json | ||
''} | ||
''} | ||
chmod ug+w ${cfg.dataDir}/.walletwasabi/backend/Config.json | ||
''; | ||
serviceConfig = { | ||
User = cfg.user; | ||
Group = cfg.group; | ||
ExecStart = "${pkgs.wasabibackend}/bin/WasabiBackend"; | ||
ProtectSystem = "full"; | ||
}; | ||
}; | ||
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users.users.${cfg.user} = { | ||
name = cfg.user; | ||
group = cfg.group; | ||
description = "wasabibackend daemon user"; | ||
home = cfg.dataDir; | ||
isSystemUser = true; | ||
}; | ||
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users.groups.${cfg.group} = {}; | ||
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}; | ||
} |