mirror of
https://github.com/fort-nix/nix-bitcoin.git
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165 lines
4.8 KiB
Nix
165 lines
4.8 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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options = {
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nix-bitcoin.nodeinfo = {
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enable = mkEnableOption "nodeinfo";
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program = mkOption {
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readOnly = true;
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default = script;
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defaultText = "(See source)";
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};
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services = mkOption {
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internal = true;
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type = types.attrs;
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default = {};
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defaultText = "(See source)";
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description = mdDoc ''
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Nodeinfo service definitions.
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'';
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};
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lib = mkOption {
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internal = true;
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readOnly = true;
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default = nodeinfoLib;
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defaultText = "(See source)";
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description = mdDoc ''
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Helper functions for defining nodeinfo services.
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'';
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};
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};
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};
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cfg = config.nix-bitcoin.nodeinfo;
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nbLib = config.nix-bitcoin.lib;
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script = pkgs.writeScriptBin "nodeinfo" ''
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#!${pkgs.python3}/bin/python
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import json
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import subprocess
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import sys
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from collections import OrderedDict
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def success(*args):
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return subprocess.call(args, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) == 0
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def is_active(unit):
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return success("systemctl", "is-active", "--quiet", unit)
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def is_enabled(unit):
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return success("systemctl", "is-enabled", "--quiet", unit)
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def cmd(*args):
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return subprocess.run(args, stdout=subprocess.PIPE).stdout.decode('utf-8')
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def shell(*args):
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return cmd("bash", "-c", *args).strip()
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infos = OrderedDict()
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operator = "${config.nix-bitcoin.operator.name}"
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def get_onion_address(name, port):
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path = f"/var/lib/onion-addresses/{operator}/{name}"
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try:
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with open(path, "r") as f:
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onion_address = f.read().strip()
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except OSError:
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print(f"error reading file {path}", file=sys.stderr)
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return
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return f"{onion_address}:{port}"
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def add_service(service, make_info, systemd_service = None):
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systemd_service = systemd_service or service
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if not is_active(systemd_service):
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infos[service] = f"'{systemd_service}.service' is not running"
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else:
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info = OrderedDict()
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exec(make_info, globals(), locals())
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infos[service] = info
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if is_enabled("onion-adresses") and not is_active("onion-adresses"):
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print("error: service 'onion-adresses' is not running")
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exit(1)
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${concatStrings infos}
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print(json.dumps(infos, indent=2))
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'';
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infos = map (serviceName:
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let serviceCfg = config.services.${serviceName};
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in optionalString serviceCfg.enable (cfg.services.${serviceName} serviceName serviceCfg)
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) (builtins.attrNames cfg.services);
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nodeinfoLib = rec {
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mkInfo = extraCode: name: cfg:
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mkInfoLong {
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inherit extraCode name cfg;
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};
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mkInfoLong = { extraCode ? "", name, cfg, systemdServiceName ? name }: ''
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add_service("${name}", """
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info["local_address"] = "${nbLib.addressWithPort cfg.address cfg.port}"
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'' + mkIfOnionPort name (onionPort: ''
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info["onion_address"] = get_onion_address("${name}", ${onionPort})
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'') + extraCode + ''
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""", "${systemdServiceName}")
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'';
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mkIfOnionPort = name: fn:
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if onionServices ? ${name} then
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fn (toString (builtins.elemAt onionServices.${name}.map 0).port)
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else
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"";
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};
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inherit (config.services.tor.relay) onionServices;
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in {
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inherit options;
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config = mkIf cfg.enable {
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environment.systemPackages = [ script ];
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nix-bitcoin.operator.enable = true;
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nix-bitcoin.nodeinfo.services = with nodeinfoLib; {
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bitcoind = mkInfo "";
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clightning = mkInfo ''
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info["nodeid"] = shell("lightning-cli getinfo | jq -r '.id'")
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if 'onion_address' in info:
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info["id"] = f"{info['nodeid']}@{info['onion_address']}"
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'';
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lnd = name: cfg: mkInfo (''
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info["rest_address"] = "${nbLib.addressWithPort cfg.restAddress cfg.restPort}"
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'' + mkIfOnionPort "lnd-rest" (onionPort: ''
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info["onion_rest_address"] = get_onion_address("lnd-rest", ${onionPort})
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'') + ''
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info["nodeid"] = shell("lncli getinfo | jq -r '.identity_pubkey'")
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'') name cfg;
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clightning-rest = mkInfo "";
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electrs = mkInfo "";
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fulcrum = mkInfo "";
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btcpayserver = mkInfo "";
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liquidd = mkInfo "";
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joinmarket-ob-watcher = mkInfo "";
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rtl = mkInfo "";
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mempool = mkInfo "";
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mempool-frontend = name: cfg: mkInfoLong {
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inherit name cfg;
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systemdServiceName = "nginx";
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extraCode = "";
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};
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# Only add sshd when it has an onion service
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sshd = name: cfg: mkIfOnionPort "sshd" (onionPort: ''
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add_service("sshd", """info["onion_address"] = get_onion_address("sshd", ${onionPort})""")
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'');
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};
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};
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}
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