The service likes to write files uploaded by the user to the service
user's $HOME. In our case the hqplayerd user has no home directory,
since it's a system user, and regardless we'd like to keep the service's
state contained.
With this change the unit forces HOME to point to
/var/lib/hqplayer/home, which works around the issue.
The attributes got renamed in PR #126440 and in some places this caused
evaluation errors, e.g. the tarball job was saying (locally)
> attribute 'alsaUtils' missing, at /build/source/nixos/modules/services/audio/alsa.nix:6:4
and I suspect that trunk-combined jobset's failure to evaluate was also caused.
Using `replace-literal` to insert secrets leaks the secrets through
the `replace-literal` process' `/proc/<pid>/cmdline`
file. `replace-secret` solves this by reading the secret straight from
the file instead.
Using `replace-literal` to insert secrets leaks the secrets through
the `replace-literal` process' `/proc/<pid>/cmdline`
file. `replace-secret` solves this by reading the secret straight from
the file instead, which also simplifies the code a bit.
This is necessary for Librespot, which is spawned by snapserver in the
same cgroup. Librespot requires querying local ip links and addresses
for MDNS (Zeroconf/Avahi), and does so through NETLINK interface.
* Add 'librespot' (new name for 'spotify'), 'alsa', 'tcp'.
* Add a warning about the spotify -> librespot rename.
* Fix the deprecated example `mode = "listen"` for type 'pipe'.
* Update the tests to include a straightforward 'tcp' test.
OSS Emulation is considered incomplete so disabling it by default.
Using user level alsa-oss library (nix-env -iA nixos.alsaOss) over
this kernel module is recommended.
This allows to use files containing only the mpd password without the
permissions, making it easier for other programs connecting to mpd to read the
password from the same password file.
This fixes the case when Jack Audio Daemon is running
as a service via `services.jack.jackd` and Pulseaudio
running as a *user* service.
Two issues prevented connecting `pulse` with `jackd`:
* Missing `JACK_PROMISCUOUS_SERVER` environment variable for `pulse` user service,
resulting in `pulse` trying to access `jackd` as if it was running as part of
the users session.
* `jackd` not being able to access socket created by `pulse` due to socket
created using user ID and `users` group. Change allows `jackd` to access
the socket created by `pulse` correctly.
`pulse` now also autoloads `module-jack-sink` and `module-jack-source`
if `services.jack.jackd.enable` is set.
The default `pulse` package is now set to `pulseaudioFull` automatically
if `services.jack.jackd.enable` is set.
the options should not be set as we already change user with service
file, man mpd.conf says "Do not use this option if you start MPD as an
unprivileged user"
The group option actually is not documented at all anymore and probably
no longer exists.
These options get in the way of setting up confinement for the service,
as it would otherwise be pretty straightforward to setup, but even if
mpd is not root it would check the user exists within the chroot which
is more work (need to get nss working):
systemd.services.mpd = {
serviceConfig.BindPaths = [
# mpd state dir
"/var/lib/mpd"
# notify systemd service started up
"/run/systemd/notify"
];
serviceConfig.BindReadOnlyPaths = [
"/path/to/music:/var/lib/mpd/music"
];
# ProtectSystem is not compatible with confinement
serviceConfig.ProtectSystem = lib.mkForce false;
confinement = {
enable = true;
binSh = null;
mode = "chroot-only";
};
};
A centralized list for these renames is not good because:
- It breaks disabledModules for modules that have a rename defined
- Adding/removing renames for a module means having to find them in the
central file
- Merge conflicts due to multiple people editing the central file
