[FEAT] User should be in the video group

[davidebeatrici]

Is this a new feature request?

• I have searched the existing issues

Wanted change

In a fresh container the user is not in any groups, except for his own.

I believe the user should be in the video group by default.

Related: #44 #93 #146

Reason for change

The video group is commonly allowed to access tuners (/dev/dvb) and accelerators (/dev/dri).

Proposed code change

No response

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[davidebeatrici]

On my system:

# ls -lR /dev/dvb
/dev/dvb:
total 0
drwxr-xr-x    2 root     root           140 Feb 11 06:56 adapter0

/dev/dvb/adapter0:
total 0
crw-rw----    1 root     video     212,   0 Feb 11 06:56 demux0
crw-rw----    1 root     video     212,   1 Feb 11 06:56 dvr0
crw-rw----    1 root     video     212,   3 Feb 11 06:56 frontend0
crw-rw----    1 root     video     212,   4 Feb 11 06:56 frontend1
crw-rw----    1 root     video     212,   2 Feb 11 06:56 net0

video is ID 27 and the user I specified in the compose file is part of it.