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I have tried multiple things but nothing seems to be working. I managed to do it inside a docker container luckily there is documentation available for the same. But with singularity its a whole different story. Below is a very simple version of one of my def files. where I am entirely trying to disable the dcv authentication process but even that is not getting disabled. It lands me to the login page every time. my host system is Ubuntu 24.04.1 LTS

Bootstrap: docker
From: nvidia/cuda:12.2.2-cudnn8-devel-ubuntu22.04

%post
    # System Configuration
    export DEBIAN_FRONTEND=noninteractive
    apt update && apt upgrade -y

    # Install Core Dependencies
    apt install -y --no-install-recommends \
        wget sudo x openbox mesa-utils \
        libglvnd-dev libnss-sss libpam-sss \
        pulseaudio xauth dbus-x11 udev

    # Install NICE DCV Server
    wget .0/Servers/nice-dcv-2024.0-18131-ubuntu2204-x86_64.tgz
    tar -xzf nice-dcv-*.tgz
    cd nice-dcv-*/ && apt install -y ./*.deb

    sed -i 's/#authentication="none"/authentication="none"/' /etc/dcv/dcv.conf
    dcvserver restart
    # Configure Permissions
    #echo "allowed_users = anybody" > /etc/X11/Xwrapper.config
    #echo 'SUBSYSTEM=="usb", MODE="0666"' > /etc/udev/rules.d/99-dcv.rules

%environment
    export DISPLAY=:1
    export XDG_RUNTIME_DIR=/tmp/runtime
    export PATH="/usr/local/nvidia/bin:/usr/local/cuda/bin:$PATH"
    export LD_LIBRARY_PATH="/usr/local/nvidia/lib:/usr/local/cuda/lib64:$LD_LIBRARY_PATH"

I ran

sudo singularity build dcv.sif dcv.def then

singularity run --nv dcv.sif then inside the container

dcvserver --create-session test --owner=ubuntu

I am expecting a working Nice dcv inside a singularity container.

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