Not polluting the main pkgs namespace with internal pkgs makes it
easier to integrate the nix-bitcoin modules into a larger config.
Also, by overriding the nix-bitcoin namespace, users can now easily set the
packages used by services that offer no explicit `package` option, like `clightning`.
Remove use of nixops-specific 'keys' group and key services.
Instead:
- Add nix-bitcoin-secrets.target, which should be required by all
units that depend on secrets. (To keep it simple, it's okay to meet
the secrets dependency indirectly by e.g. depending on bitcoind.)
Various secret deployment methods can use this target by
setting up the secrets before activating the target.
In case of nixops we just specify that nixops' keys.target comes
before nix-bitcoin-secrets.target.
If the target is left undefined in the case of manual secrets
deployment, systemd will simply ignore unit dependencies on
the target.
- Allow all users to access the secrets dir.
The access protection for the individual secret files is unchanged.
This allows us to drop the unit dependency on the nixops 'keys' group.
Type = "simple" is the default unit type.
Being wanted by bitcoind instead of a system target is more appropriate.
By binding to bitcoind, the service is automatically stopped when
bitcoind exits. This eliminates the bitcoind liveness check in preStart.
We're now directly using Greg's unmodified banlist which
simplifies the update process.
The banlist package with its dependency on the bitcoin datadir path is only
relevant for internal use within nix-bitcoin, so we can safely remove
it.
We're now using the bitcoin-cli from `services.bitcoind.package`.
Fixes#129
Without this, starting the virtualbox guest service fails during machine activation.
This is due to an incompatible NixOS machine base image.
Fix this by using an updated version of nixops.
Erik Arvstedt