nix-bitcoin/modules/spark-wallet.nix
2020-06-17 09:23:17 +00:00

91 lines
3.0 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.spark-wallet;
inherit (config) nix-bitcoin-services;
onion-chef-service = (if cfg.onion-service then [ "onion-chef.service" ] else []);
run-spark-wallet = pkgs.writeScript "run-spark-wallet" ''
CMD="${pkgs.nix-bitcoin.spark-wallet}/bin/spark-wallet --ln-path ${cfg.ln-path} -Q -k -c ${config.nix-bitcoin.secretsDir}/spark-wallet-login"
${optionalString cfg.onion-service
''
echo Getting onion hostname
CMD="$CMD --public-url http://$(cat /var/lib/onion-chef/spark-wallet/spark-wallet)"
''
}
# Use rate provide wasabi because default (bitstamp) doesn't accept
# connections through Tor and add proxy for rate lookup.
CMD="$CMD --rate-provider wasabi --proxy socks5h://${config.services.tor.client.socksListenAddress}"
echo Running $CMD
$CMD
'';
in {
options.services.spark-wallet = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
If enabled, the spark-wallet service will be installed.
'';
};
ln-path = mkOption {
type = types.path;
default = "${config.services.clightning.dataDir}/bitcoin";
description = ''
"The path of the clightning network data directory.";
'';
};
onion-service = mkOption {
type = types.bool;
default = false;
description = ''
"If enabled, configures spark-wallet to be reachable through an onion service.";
'';
};
};
config = mkIf cfg.enable {
assertions = [
{ assertion = config.services.clightning.enable;
message = "spark-wallet requires clightning.";
}
];
environment.systemPackages = [ pkgs.nix-bitcoin.spark-wallet ];
users.users.spark-wallet = {
description = "spark-wallet User";
group = "spark-wallet";
extraGroups = [ "clightning" ];
};
users.groups.spark-wallet = {};
services.tor.enable = cfg.onion-service;
# requires client functionality for Bitcoin rate lookup
services.tor.client.enable = true;
services.tor.hiddenServices.spark-wallet = mkIf cfg.onion-service {
map = [{
port = 80; toPort = 9737;
}];
version = 3;
};
services.onion-chef.enable = cfg.onion-service;
services.onion-chef.access.spark-wallet = if cfg.onion-service then [ "spark-wallet" ] else [];
systemd.services.spark-wallet = {
description = "Run spark-wallet";
wantedBy = [ "multi-user.target" ];
requires = [ "clightning.service" ] ++ onion-chef-service;
after = [ "clightning.service" ] ++ onion-chef-service;
serviceConfig = nix-bitcoin-services.defaultHardening // {
ExecStart = "${pkgs.bash}/bin/bash ${run-spark-wallet}";
User = "spark-wallet";
Restart = "on-failure";
RestartSec = "10s";
ReadWritePaths = "/var/lib/onion-chef";
} // nix-bitcoin-services.nodejs
// nix-bitcoin-services.allowTor;
};
nix-bitcoin.secrets.spark-wallet-login.user = "spark-wallet";
};
}