Hi,
This can be achieved fairly "simply" (as long as you know what to look for).
You need to pass the pulse socket into the container and tell pulse
clients inside the container its precise path.
So on Docker CLI, for a typical Pulse daemon running in userspace, it
would be something like:
*|-v /run/user/1000/pulse:/run/user/1000/pulse |*
Inside the container, once you've installed Pulseaudio, you need to
modify its client configuration:
_/etc/pulse/client.conf_
*default-server = /run/user/1000/pulse/native*
With this your Pulseaudio applications should be able to play sounds
through the host PulseAudio server (of course, you'd need to adapt the
runtime paths to your environment).
Bear in mind, there seems to be some inconsistencies in the way various
Pulse utilities interface with the daemon. In this setup for example,
"pacmd" won't work, whilst "pactl" works fine once the client
configuration is fixed.
You could test this in a manual way first and then automate things a bit
with a Dockerfile and what not.
Best regards.
On 12/12/2020 16:19, Jan Van den Audenaerde wrote:
Hi,
I have spend several days without success figuring out how I can use
pulseaudio in a container setup on an embedded device.
/I am running CentOs 8 on a headless device (intel-nuc) which is also
running docker.
I would like to run pulseaudio server on the host (CentOs 8) and my
docker containers should be able to use pulseaudio client to
communicate with the pulseaudio server via pulseaudio unix socket.
Moreover it should be possible that different docker containers can
access the microphone and speaker at the same time./
The main problem I am facing I have reported in following forum post:
* https://forums.centos.org/viewtopic.php?f=54&t=76643
<https://forums.centos.org/viewtopic.php?f=54&t=76643>
Any help would be much appreciated.
I also think that pulseaudio has the good requirements for use in a
container setup if I only can make it work.
Jan.
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