nix-bitcoin/modules/joinmarket-ob-watcher.nix
2021-01-17 17:40:12 +00:00

100 lines
2.8 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.joinmarket-ob-watcher;
inherit (config) nix-bitcoin-services;
nbPkgs = config.nix-bitcoin.pkgs;
torAddress = builtins.head (builtins.split ":" config.services.tor.client.socksListenAddress);
configFile = builtins.toFile "config" ''
[BLOCKCHAIN]
blockchain_source = no-blockchain
[MESSAGING:server1]
host = darksci3bfoka7tw.onion
channel = joinmarket-pit
port = 6697
usessl = true
socks5 = true
socks5_host = ${torAddress}
socks5_port = 9050
[MESSAGING:server2]
host = ncwkrwxpq2ikcngxq3dy2xctuheniggtqeibvgofixpzvrwpa77tozqd.onion
channel = joinmarket-pit
port = 6667
usessl = false
socks5 = true
socks5_host = ${torAddress}
socks5_port = 9050
'';
in {
options.services.joinmarket-ob-watcher = {
enable = mkEnableOption "JoinMarket orderbook watcher";
address = mkOption {
type = types.str;
default = "127.0.0.1";
description = "HTTP server address.";
};
port = mkOption {
type = types.port;
default = 62601;
description = "HTTP server port.";
};
dataDir = mkOption {
readOnly = true;
default = "/var/lib/joinmarket-ob-watcher";
description = "The data directory for JoinMarket orderbook watcher.";
};
user = mkOption {
type = types.str;
default = "joinmarket-ob-watcher";
description = "The user as which to run JoinMarket orderbook watcher.";
};
group = mkOption {
type = types.str;
default = cfg.user;
description = "The group as which to run JoinMarket orderbook watcher.";
};
# This option is only used by netns-isolation
enforceTor = mkOption {
readOnly = true;
default = true;
};
};
config = mkIf cfg.enable {
services.tor = {
enable = true;
client.enable = true;
};
systemd.services.joinmarket-ob-watcher = {
wantedBy = [ "multi-user.target" ];
requires = [ "tor.service" ];
after = [ "tor.service" ];
preStart = ''
ln -snf ${configFile} ${cfg.dataDir}/joinmarket.cfg
'';
serviceConfig = nix-bitcoin-services.defaultHardening // rec {
StateDirectory = "joinmarket-ob-watcher";
StateDirectoryMode = "0770";
WorkingDirectory = "${cfg.dataDir}"; # The service creates dir 'logs' in the working dir
ExecStart = ''
${nbPkgs.joinmarket}/bin/ob-watcher --datadir=${cfg.dataDir} \
--host=${cfg.address} --port=${toString cfg.port}
'';
User = cfg.user;
Restart = "on-failure";
RestartSec = "10s";
} // nix-bitcoin-services.allowTor;
};
users.users.${cfg.user} = {
group = cfg.group;
home = cfg.dataDir; # The service writes to HOME/.config/matplotlib
};
users.groups.${cfg.group} = {};
};
}