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nodeinfo: make extensible

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Module authors can now add extra services via option `nix-bitcoin.nodeinfo.services`.
Mark as internal because we're not yet providing a user-friendly, stable API.
This commit is contained in:
Erik Arvstedt 2022-07-04 12:04:42 +02:00
parent 285a38803c
commit f17fcebe11
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GPG Key ID: 33312B944DD97846
1 changed files with 56 additions and 35 deletions
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91
modules/nodeinfo.nix
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@ -5,41 +5,38 @@ let
options = {
nix-bitcoin.nodeinfo = {
enable = mkEnableOption "nodeinfo";
program = mkOption {
readOnly = true;
default = script;
defaultText = "(See source)";
};
services = mkOption {
internal = true;
type = types.attrs;
default = {};
defaultText = "(See source)";
description = ''
Nodeinfo service definitions.
'';
};
nodeinfoLib = mkOption {
internal = true;
readOnly = true;
default = nodeinfoLib;
defaultText = "(See source)";
description = ''
Helper functions for defining nodeinfo services.
'';
};
};
};
cfg = config.nix-bitcoin.nodeinfo;
nbLib = config.nix-bitcoin.lib;
# Services included in the output
services = {
bitcoind = mkInfo "";
clightning = mkInfo ''
info["nodeid"] = shell("lightning-cli getinfo | jq -r '.id'")
if 'onion_address' in info:
info["id"] = f"{info['nodeid']}@{info['onion_address']}"
'';
lnd = mkInfo ''
info["nodeid"] = shell("lncli getinfo | jq -r '.identity_pubkey'")
'';
clightning-rest = mkInfo "";
electrs = mkInfo "";
spark-wallet = mkInfo "";
btcpayserver = mkInfo "";
liquidd = mkInfo "";
joinmarket-ob-watcher = mkInfo "";
rtl = mkInfo "";
# Only add sshd when it has an onion service
sshd = name: cfg: mkIfOnionPort "sshd" (onionPort: ''
add_service("sshd", """set_onion_address(info, "sshd", ${onionPort})""")
'');
};
script = pkgs.writeScriptBin "nodeinfo" ''
#!${pkgs.python3}/bin/python
@ -93,13 +90,13 @@ let
print(json.dumps(infos, indent=2))
'';
infos = map (service:
let cfg = config.services.${service};
in optionalString cfg.enable (services.${service} service cfg)
) (builtins.attrNames services);
infos = map (serviceName:
let serviceCfg = config.services.${serviceName};
in optionalString serviceCfg.enable (cfg.services.${serviceName} serviceName serviceCfg)
) (builtins.attrNames cfg.services);
mkInfo = extraCode: name: cfg:
''
nodeinfoLib = rec {
mkInfo = extraCode: name: cfg: ''
add_service("${name}", """
info["local_address"] = "${nbLib.addressWithPort cfg.address cfg.port}"
'' + mkIfOnionPort name (onionPort: ''
@ -109,11 +106,12 @@ let
""")
'';
mkIfOnionPort = name: fn:
if onionServices ? ${name} then
fn (toString (builtins.elemAt onionServices.${name}.map 0).port)
else
"";
mkIfOnionPort = name: fn:
if onionServices ? ${name} then
fn (toString (builtins.elemAt onionServices.${name}.map 0).port)
else
"";
};
inherit (config.services.tor.relay) onionServices;
in {
@ -121,5 +119,28 @@ in {
config = {
environment.systemPackages = optional cfg.enable script;
nix-bitcoin.nodeinfo.services = with nodeinfoLib; {
bitcoind = mkInfo "";
clightning = mkInfo ''
info["nodeid"] = shell("lightning-cli getinfo | jq -r '.id'")
if 'onion_address' in info:
info["id"] = f"{info['nodeid']}@{info['onion_address']}"
'';
lnd = mkInfo ''
info["nodeid"] = shell("lncli getinfo | jq -r '.identity_pubkey'")
'';
clightning-rest = mkInfo "";
electrs = mkInfo "";
spark-wallet = mkInfo "";
btcpayserver = mkInfo "";
liquidd = mkInfo "";
joinmarket-ob-watcher = mkInfo "";
rtl = mkInfo "";
# Only add sshd when it has an onion service
sshd = name: cfg: mkIfOnionPort "sshd" (onionPort: ''
add_service("sshd", """set_onion_address(info, "sshd", ${onionPort})""")
'');
};
};
}