Use buildRustPackage instead of buildRustCrate (via crate2nix).
buildRustPackage builds the whole executable and its libraries in a
single `cargo build` process.
With the create2nix approach each library is built in a separate derivation,
directly using rustc instead of the cargo wrapper.
Benefits of buildRustPackage:
- Much simpler to maintain
- Package derivation evaluates much faster
Benefits of crate2nix:
- Build can be distributed over multiple build hosts
- Better sharing of common dependencies between different builds
- More fine-grained rebuilding on build failures
In nixpkgs buildRustPackage is used for almost all Rust pkgs, it's
also a better fit for our use case.
ProtectSystem=full disables writing to /etc which is the default
secrets location.
Besides that, hardening is pointless for {generate,setup}-secrets which
don't read external input and are fully under our control.
Each secret file to be deployed is now backed by one local file.
This simplifies 'setup-secrets' and the secret definitions.
Also, with the old format it was not possible to add new secrets
to secrets.nix in a simple way.
Old secrets are automatically converted to the new format when running
nix-shell.
Using the new option 'nix-bitcoin.secrets', secrets are now directly
defined by the services that use them.
This further speeds up builds, in particular the modules test in the
next commit. By checking if the expected final build output has already
been cached, we can even skip the download of cached builds.
Advantages:
- The build fails if a statement fails.
Previously, errors in all but the last statement were silently
ignored.
- The Travis log gives a fine-grained view of the output of each
statement.
Add if statements because the '[…] &&' prefix results in YAML syntax
errors.
- set -e is implicit
- coreutils are in PATH and don't have to be explicitly referenced (echo is a shell builtin anyways)
- exit 0 is unneeded ('if' statements never fail)
This better fits the semantics of this unit and allows for easier
automated testing whether the service is active.
wantedBy = bindsTo = after = tor.service is the simplest way to ensure
that this unit is always running/restarted in lockstep with tor.
Previously, onion-chef would have stayed inactive in the case
that tor was stopped and then later restarted.
An executable is more robust to use than shell aliases.
This is also a preparation for commit 'add module test' because the
NixOS testing framework makes interactive aliases hard to use: It
unsets 'PS1' which is used by programs/bash/bash.nix to detect
interactive shells.
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