59 lines
2 KiB
Nix
59 lines
2 KiB
Nix
# regtest-node — shared bitcoind(regtest) + Core Lightning + LND config.
|
|
#
|
|
# The single source of truth for the regtest stack, imported by BOTH:
|
|
# - the CI test → tests/regtest-core.nix
|
|
# - the interactive VM → tests/regtest-interactive.nix (via flake.nix)
|
|
# so the two can never drift.
|
|
#
|
|
# Consumers must ALSO import `nix-bitcoin.nixosModules.default` — it needs
|
|
# the flake input, which a plain module can't reach on its own.
|
|
#
|
|
# Both LN nodes are co-located and share the local bitcoind; lnd's p2p
|
|
# port is moved to 9736 so it doesn't clash with clightning's 9735. CLIs
|
|
# run as the nix-bitcoin `operator` user.
|
|
{
|
|
config,
|
|
pkgs,
|
|
lib,
|
|
...
|
|
}:
|
|
{
|
|
nix-bitcoin.generateSecrets = true;
|
|
nix-bitcoin.operator.enable = true;
|
|
|
|
services.bitcoind = {
|
|
enable = true;
|
|
regtest = true;
|
|
# regtest has no fee estimation, so sendtoaddress/funding need a
|
|
# fallback fee. nix-bitcoin appends extraConfig inside the [regtest]
|
|
# section, so this applies to the regtest network.
|
|
extraConfig = "fallbackfee=0.0002";
|
|
};
|
|
|
|
# Pre-mine a funded "test" wallet on bitcoind startup. 110 > 100 so the
|
|
# coinbase outputs are mature/spendable.
|
|
# NOTE: keep this height in sync with the assertions in
|
|
# tests/regtest-core.nix (it checks the nodes reach block 110).
|
|
systemd.services.bitcoind.postStart = lib.mkAfter ''
|
|
cli=${config.services.bitcoind.cli}/bin/bitcoin-cli
|
|
if ! $cli listwallets | ${pkgs.jq}/bin/jq -e 'index("test")' >/dev/null; then
|
|
"$cli" -named createwallet wallet_name=test load_on_startup=true
|
|
addr=$("$cli" -rpcwallet=test getnewaddress)
|
|
"$cli" generatetoaddress 110 "$addr"
|
|
fi
|
|
'';
|
|
|
|
services.clightning.enable = true; # p2p :9735
|
|
services.lnd = {
|
|
enable = true;
|
|
port = 9736; # avoid clashing with clightning's 9735
|
|
};
|
|
|
|
# jq is used by the test script and the interactive helpers.
|
|
environment.systemPackages = [ pkgs.jq ];
|
|
|
|
# Headroom for bitcoind + two lightning daemons in one VM.
|
|
virtualisation.cores = 2;
|
|
virtualisation.memorySize = 3072;
|
|
virtualisation.diskSize = 8192;
|
|
}
|