Systemd's `Description` option is a misnomer (as confessed by `man systemd.unit`):
Its value is used by user-facing tools in place of the unit file name, so this option
could have been more aptly named `label` or `name`.
`Description` should only be set if the unit file name is not sufficient for naming a unit.
This is not the case for our services, except for `systemd.services.nb-netns-bridge`
whose description has been kept.
As an example how this affects users, weird journal lines like
```
nb-test systemd[1]: Starting Run clightningd...
```
are now replaced by
```
nb-test systemd[1]: Starting clightning.service...
```
- Adds electrs to netns-isolation.services
- Adds daemonrpc option and specifies address option to allow using
electrs with network namespaces
- Adds host option (defaults to localhost) as target of hidden service
db48ab9b69 services: use 'port' option type (Erik Arvstedt)
Pull request description:
ACKs for top commit:
jonasnick:
ACK db48ab9b69
Tree-SHA512: 24cf0c307b40652d1275575fdf4216696890b0f7786832e7bbee9e21cf6d23d3fc35480926c475fc98c17eba668f5ee2c8c0875689e725c8ad05f2fb6b9ecd20
Remove PermissionsStartOnly for bitcoind and spark-wallet (it was never
needed there)
Give reason for PermissionsStartOnly in lightning-charge
Replace PermissionsStartOnly in clightning, electrs and liquid
This is NixOS' recommended way to setup service dirs
https://github.com/NixOS/nixpkgs/pull/56265. This commit hands off the
initial data directory creation to systemd.tmpfiles.rules. All other
preStart scripts are left intact to limit this changes' scope.
Electrs does not need to be a part of "bitcoinrpc" group because preStart
electrs.toml creation is handled by PermissionsStartOnly. "bitcoin"
group membership is only necessary when cfg.high-memory is enabled and
electrs reads blocks directly from the blocks directory.
Electrs allows defining settings multiple times via cmdline args, but
not via config files.
So 'extraArgs' is the only way to implement overridable settings,
'extraOptions' wouldn't work.
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.
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.
