Bluetooth integration in docker only works with root docker

[effpeter]

Feedback

A lot of people have issues discovering the bluetooth adapter when running HA in docker.
After a lot of troubleshooting I think I have tracked down the problem.
The dbus socket uses setuid/setgid, which is not supported/used when running docker in rootless mode.
I have found 2 workarounds:

1. You need to start the container as root on the host system( sudo docker ...
2. In theory the dbus system could be patched according to this: https://stackoverflow.com/questions/74748794/how-to-use-the-dbus-system-in-a-container-with-docker-root-less
   The first one works, I haven't tried the second method.

This should be mentioned in the documentation of the Bluetooth integration.

URL

https://www.home-assistant.io/integrations/bluetooth/

Version

2024.11.3

Additional information

No response

[home-assistant]

Hey there @bdraco, mind taking a look at this feedback as it has been labeled with an integration (bluetooth) you are listed as a code owner for? Thanks!

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