The `render` group is required to acces the graphic cards decoding,
encoding and transcoding capabilities.
It is required for using fancy `ffmpeg.hwaccel-args` values, like
`preset-vaapi`.
Systemd defaults to the name of the exec-ed process, which in this case
is python. That's not so helpful when looking through syslog, so adjust
accordingly.
In preparation for the deprecation of `stdenv.isX`.
These shorthands are not conducive to cross-compilation because they
hide the platforms.
Darwin might get cross-compilation for which the continued usage of `stdenv.isDarwin` will get in the way
One example of why this is bad and especially affects compiler packages
https://www.github.com/NixOS/nixpkgs/pull/343059
There are too many files to go through manually but a treewide should
get users thinking when they see a `hostPlatform.isX` in a place where it
doesn't make sense.
```
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv.is" "stdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv'.is" "stdenv'.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "clangStdenv.is" "clangStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "gccStdenv.is" "gccStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenvNoCC.is" "stdenvNoCC.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "inherit (stdenv) is" "inherit (stdenv.hostPlatform) is"
fd --type f "\.nix" | xargs sd --fixed-strings "buildStdenv.is" "buildStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "effectiveStdenv.is" "effectiveStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "originalStdenv.is" "originalStdenv.hostPlatform.is"
```
Frigate can't handle old files in the cache directory and then behaves
strange. The official setup guide also starts every time with a clean
cache directory.
these changes were generated with nixq 0.0.2, by running
nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix
two mentions of the mdDoc function remain in nixos/, both of which
are inside of comments.
Since lib.mdDoc is already defined as just id, this commit is a no-op as
far as Nix (and the built manual) is concerned.
Frigate does string prefix matching for paths, which isn't exactly
compatible with dynamically provisioned directories of systemd, where
/var/cache/frigate is actually a symlink to /var/cache/private/frigate.
Because we are unlikely to get this fixed upstream, this is one of the
reason we should stop using DynamicUser= here.
The other being, that nginx needs to be able to serve clips and
recordings from both the CacheDirectory and the StateDirectory, and
nginx being a member on a group that may only exist after it was started
up doesn't work reliably.
This is also why we relax the umask to allow g+r/g+rx for newly created
files. Existing installs may need the following permissions fix to get
things going.
```
find /var/lib/frigate/recordings -type d -exec chmod g+rx {} \;
find /var/lib/frigate/recordings -type f -exec chmod g+r {} \;
find /var/cache/frigate -type f -exec chmod g+r {} \;
```
Co-Authored-By: Daniel Barlow <dan@telent.net>
