New Dockerfile for running package offscreen in a docker

Util/Docker/Release.Dockerfile

@@ -1,31 +1,11 @@
-# Make sure drivers are >= 390
-#
-# If you want the highest performance you need to make sure that your host has a functioning Xorg server running
-# even in headless/cloud systems.
-# If your host has a running version of Xorg then set  SDL_VIDEODRIVER=x11 and run the docker container as:
-#
-# sudo -E docker run --privileged --rm --gpus all -it --net=host -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix:rw carla:latest /bin/bash
-#
-# Otherwise, set SDL_VIDEODRIVER=offscreen and run the docker container as:
+
+# run the docker container as:
 #
 # sudo -E docker run --rm --gpus all -it --net=host carla:latest /bin/bash
 
 FROM nvidia/vulkan:1.1.121-cuda-10.1--ubuntu18.04
 
-RUN packages='libsdl2-2.0 xserver-xorg libvulkan1 libomp5' \
-	&& apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $packages --no-install-recommends \
-    && VULKAN_API_VERSION=`dpkg -s libvulkan1 | grep -oP 'Version: [0-9|\.]+' | grep -oP '[0-9|\.]+'` && \
-	mkdir -p /etc/vulkan/icd.d/ && \
-	echo \
-	"{\
-		\"file_format_version\" : \"1.0.0\",\
-		\"ICD\": {\
-			\"library_path\": \"libGLX_nvidia.so.0\",\
-			\"api_version\" : \"${VULKAN_API_VERSION}\"\
-		}\
-	}" > /etc/vulkan/icd.d/nvidia_icd.json \
-	&& rm -rf /var/lib/apt/lists/*
-
+RUN packages='libomp5' && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $packages --no-install-recommends
 
 RUN useradd -m carla
 
@@ -34,9 +14,6 @@ COPY --chown=carla:carla . /home/carla
 USER carla
 WORKDIR /home/carla
 
-# Select the video driver between offsreen and x11
-# x11 is recommended for vulkan support
-ENV SDL_VIDEODRIVER=x11
-
-# you can also run CARLA in -opengl mode
-CMD /bin/bash CarlaUE4.sh -vulkan
+# you can also run CARLA in offscreen mode with -RenderOffScreen
+# CMD /bin/bash CarlaUE4.sh -RenderOffScreen
+CMD /bin/bash CarlaUE4.sh