nix-bitcoin/test/wireguard-lndconnect.nix

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# You can run this test via `run-tests.sh -s wireguard-lndconnect`
makeTestVM: pkgs:
with pkgs.lib;
makeTestVM {
name = "wireguard-lndconnect";
nodes = {
server = {
imports = [
../modules/modules.nix
../modules/presets/wireguard.nix
];
nixpkgs.pkgs = pkgs;
nix-bitcoin.generateSecrets = true;
nix-bitcoin.operator.enable = true;
services.clightning-rest = {
enable = true;
lndconnect.enable = true;
};
# TODO-EXTERNAL:
# When WAN is disabled, DNS bootstrapping slows down service startup by ~15 s.
services.clightning.extraConfig = "disable-dns";
services.lnd = {
enable = true;
lndconnect.enable = true;
port = 9736;
};
};
client = {
nixpkgs.pkgs = pkgs;
environment.systemPackages = with pkgs; [
wireguard-tools
];
};
};
testScript = ''
import base64
import urllib.parse as Url
from types import SimpleNamespace
def parse_lndconnect_url(url):
u = Url.urlparse(url)
queries = Url.parse_qs(u.query)
macaroon = queries['macaroon'][0]
is_clightning = url.startswith("c-lightning-rest")
return SimpleNamespace(
host = u.hostname,
port = u.port,
macaroon_hex =
macaroon if is_clightning else base64.urlsafe_b64decode(macaroon + '===').hex().upper()
)
client.start()
server.connect()
if not "is_interactive" in vars():
with subtest("connect client to server via WireGuard"):
server.wait_for_unit("wireguard-wg-nb-peer-peer0.service")
# Get WireGuard config from server and save it to `/tmp/wireguard.conf` on the client
wg_config = server.succeed("runuser -u operator -- nix-bitcoin-wg-connect server --text")
# Encode to base64
b64 = base64.b64encode(wg_config.encode('utf-8')).decode()
client.succeed(f"install -m 400 <(echo -n {b64} | base64 -d) /tmp/wireguard.conf")
# Connect to server via WireGuard
client.succeed("wg-quick up /tmp/wireguard.conf")
# Ping server from client
print(client.succeed("ping -c 1 -W 0.5 10.10.0.1"))
with subtest("lndconnect-wg"):
server.wait_for_unit("lnd.service")
lndconnect_url = server.succeed("runuser -u operator -- lndconnect-wg --url")
api = parse_lndconnect_url(lndconnect_url)
# Make lnd REST API call
client.succeed(
f"curl -fsS --max-time 3 --insecure --header 'Grpc-Metadata-macaroon: {api.macaroon_hex}' "
f"-X GET https://{api.host}:{api.port}/v1/getinfo"
)
with subtest("lndconnect-clightning-wg"):
server.wait_for_unit("clightning-rest.service")
lndconnect_url = server.succeed("runuser -u operator -- lndconnect-clightning-wg --url")
api = parse_lndconnect_url(lndconnect_url)
# Make clightning-rest API call
client.succeed(
f"curl -fsS --max-time 3 --insecure --header 'macaroon: {api.macaroon_hex}' "
f"--header 'encodingtype: hex' -X GET https://{api.host}:{api.port}/v1/getinfo"
)
'';
}