Running an X11 application inside a docker container

Allow connections to your x-server from inside the container:

xhost +local:docker

Mount the socket into your container when running the application:

export XSOCK=/tmp/.X11-unix/X0
docker run --rm -v $XSOCK:$XSOCK xeyes

Note that we have set DISPLAY=:0 inside the container (see Dockerfile),