By using the `default` flake module for tests, `pkgsUnstable` in
`pkgs/default.nix` gets passed the `nixpkgs-unstable` flake input
instead of falling back to importing `nixpkgsPinned.nixpkgs-unstable`.
For some use cases this prevents importing `nixpkgs-unstable` twice
(once via the `nixpkgs-unstable` flake input, once via
`import nixpkgsPinned.nixpkgs-unstable`).
lnd and lightning-loop resolve `localhost` to an IPv4 address when
creating RPC sockets.
Since NixOS 23.05, RTL (nodejs) resolves `localhost` to an IPv6
address when connecting to lnd and lightning-loop, which leads to
connection errors.
To fix these and other potential errors, replace all instances
of `localhost` with `127.0.0.1`.
For both lnd and clightning-rest, `lndconnectOnion` is replaced by
options `lndconnect.enable` and `lndconnect.onion`.
This allows using lndconnect without Tor.
Advantages:
- Pure test evaluations
- The test framework can now be used by flakes that extend nix-bitcoin
- Most features of `run-tests.sh` are now accessible via `nix build`/`nix run`.
We keep `run-tests.sh` for advanced features like `scenarioOverridesFile` and adhoc scenarios.
Other changes:
- `run-tests.sh` now builds aggregate VM tests like `basic` or
`buildable` by creating all VMs in a single evaluation.
This speeds up the tests and eases debugging by separating the eval and build steps.
- Use the new `nix` CLI which has improved build output logging
by prefixing output lines with the origin drv name.
- Move option `rtl.nodes.{lnd,clightning}` -> `rtl.nodes.{lnd,clightning}.enable`
This is required by the next commit.
- Move option `rtl.loop` -> `rtl.nodes.lnd.loop`
- Only enable loop when `nodes.lnd` is enabled
Option `services.lnd.restOnionService.package` has been removed.
There's not much use in overriding the [lndconnect pkg](https://github.com/LN-Zap/lndconnect).
- Rename `services.rtl.cl-rest` to `services.clightning-rest`.
`clightning-rest` is generally useful for connecting external REST clients
to clightning.
- Add a dedicated network namespace in netns-isolation.
- Add nodeinfo entry.
- Add datadir (which contains REST auth data) to backups.
Previously, in case of btcpayserver.lbtc on regtest, nbxplorer just
printed a log error while trying to generate liquidd regtest blocks.
Now nbxplorer exits with an error, so disable lbtc.
Otherwise liquidd startup fails. This bug was not covered by our tests,
because we're not combining `regtest` with `secure-node`.
But nixbitcoin.org does, which should suffice for now.
