SDRangel in Docker: first working GUI solution

docker/base/Dockerfile

@@ -72,6 +72,9 @@ RUN sudo apt-get update && sudo apt-get -y install \
     libopus-dev \
     libavahi-client-dev
 
+# This is the first step to allow sharing pulseaudio with the host
+COPY pulse-client.conf /etc/pulse/client.conf 
+
 # CM256cc
 RUN cd /opt/build \
     && git clone https://github.com/f4exb/cm256cc.git \

docker/base/gui/linux/nvidia/run.sh

@@ -1,13 +1,16 @@
 #!/bin/sh
 
 COMMAND="/bin/bash"
+USER_UID=$(id -u)
 
 xhost +si:localuser:root # allow connections to X server
 xhost +si:localuser:${USER}
 #docker run --privileged -e "DISPLAY=unix:0.0" -p 50022:22 -v="/tmp/.X11-unix:/tmp/.X11-unix:rw" -v="/tmp/debug:/opt/build/sdrangel/debug:rw" -i -t --rm sdrangel/bionic:linux_nvidia $COMMAND
 docker run -it --rm --privileged \
+    -e "PULSE_SERVER=unix:/run/user/1000/pulse/native" \
     -e "DISPLAY=unix:0.0" \
     -p 50022:22 \
     -v="/tmp/.X11-unix:/tmp/.X11-unix:rw" \
-    -v="/home/${USER}/.config/f4exb:/home/sdr/.config/f4exb:rw" \
+    -v="/home/${USER}/.config:/home/sdr/.config:rw" \
+    -v="/run/user/${USER_UID}/pulse:/run/user/1000/pulse" \
     sdrangel/bionic:linux_nvidia $COMMAND

docker/base/pulse-client.conf

@@ -0,0 +1,9 @@
+# Connect to the host's server using the mounted UNIX socket
+default-server = unix:/run/user/1000/pulse/native
+
+# Prevent a server running in the container
+autospawn = no
+daemon-binary = /bin/true
+
+# Prevent the use of shared memory
+enable-shm = false