NixOS option `security.hideProcessInformation` for globally restricting
access to /proc has been removed.
Use per-service restrictions via 'ProtectProc' instead.
Rename
`nix-bitcoin.security.hideProcessInformation` to
`nix-bitcoin.security.dbusHideProcessInformation`
because this option now only implements the dbus restriction.
Starting with 0.21.0, bitcoin no longer automatically creates and loads
a default wallet.
This was being ignored because of a JoinMarket issue [1] in CI builds prior
to this version. Now a watch-only Bitcoin Core wallet is created in ExecStartPost.
[1] https://github.com/JoinMarket-Org/joinmarket-clientserver/issues/812
Don't copy bitcoin-rpcpassword-privileged as root, instead run service
with group "bitcoin".
Same effect, less complexity. Note, PoLP still obeyed for joinmarket-ob-watcher.
Due to a possible NixOS bug, this commit has no effect on NixOS 20.09
where `RestrictAddressFamilies` is a no-op.
It's only relevant for NixOS unstable with cgroups v2.
bitcoind+zmq: instead of allowing all address families, only add the required
AF_NETLINK family.
lnd: lnd only runs a zmq client, not a server, therefore it requires
no additional address families.
lightning-pool, clightning-plugin-zmq: add AF_NETLINK.
- Improve readability by using minutes
- set `TimeoutStopSec` like in bitcoin/contrib/init/bitcoind.service.
Stopping bitcoind can exceed the default timeout during IBD.
Keeping the secrets dir read-only is more simple and robust.
- lnd seed mnemonic creation and joinmarket wallet creation can be
run as the regular service user instead of root.
- It is easier to switch to a third-party secrets deployment
method in the future.
Don't create a seed mnemonic for lnd when a wallet exists.
This avoids creating unused mnemonics and helps simplifying
the migration command in `versioning.nix`.
- Fail at evaluation when secrets setup is not configured.
Previously, bitcoind failed at runtime due to the missing secrets target.
- Fail at evaluation when conflicting secrets setup methods are used.
This happens when `secretsSetupMethod` has more than one definition.
With krops or nixops the secrets target is always restarted during
the deployment process.
This previously caused unnecessary restarts of all nix-bitcoin services.
Move this feature from a module preset to a regular option, so that it's
easily discoverable and accessible.
Simplify the implementation of `generateSecrets` by adding it to the
existing `setup-secrets` service script.
Also rename option setup-secrets -> setupSecrets.
