fiji_xpra.def

Bootstrap:docker
From:amd64/ubuntu:jammy

%post
    # install Fiji
    export MYHOME=/home/user
    mkdir $MYHOME
    apt-get update
    apt-get -y install wget unzip xvfb libxrender1 libxtst6 libxi6 fontconfig
    apt-get clean
    wget https://downloads.imagej.net/fiji/latest/fiji-linux64.zip
    unzip fiji-linux64.zip -d $MYHOME
    rm fiji-linux64.zip
    export PATH=$MYHOME/Fiji.app:$PATH 
    echo "export PATH=$MYHOME/Fiji.app:$PATH" >> "$SINGULARITY_ENVIRONMENT"
    cd $MYHOME
    echo 'print("Hello World!");' > helloWorld.ijm
    $MYHOME/Fiji.app/ImageJ-linux64 --update update

    # Install latest Xpra and dependencies
    apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y wget gnupg2 apt-transport-https \
    software-properties-common ca-certificates netcat uuid-runtime && \
    wget -O "/usr/share/keyrings/xpra.asc" https://xpra.org/xpra.asc && \
    wget -O "/etc/apt/sources.list.d/xpra.sources" https://raw.githubusercontent.com/Xpra-org/xpra/master/packaging/repos/jammy/xpra.sources

    apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -yqq \
    xpra \
    xvfb \
    xterm \
    sshfs && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

%test
    export MYHOME=/home/user
    export PATH=$MYHOME/Fiji.app:$PATH
    $MYHOME/Fiji.app/ImageJ-linux64 --headless -macro $MYHOME/helloWorld.ijm

%runscript
    #!/bin/bash
    mkdir -p $HOME/.xpra
    chmod 700 $HOME/.xpra
    export XDG_RUNTIME_DIR=$HOME/.xpra
    export DISPLAY=:$(shuf -n 1 -i 100-200)
    while PORT=$(shuf -n 1 -i 49152-65535); nc -z 0.0.0.0 $PORT; do continue; done
    export XPRA_PASSWORD=$(uuidgen)
    echo "========================================="
    echo "Password is $XPRA_PASSWORD"
    echo "Launching Fiji to display via Xpra on DISPLAY $DISPLAY. Connect via"
    echo "http://$(hostname -i):$PORT/?password=$XPRA_PASSWORD"
    echo "Logging errors to /tmp/xpra.log"
    echo "========================================="
    xpra start \
    --minimal=yes \
    --bind-tcp=0.0.0.0:$PORT,auth=env \
    --websocket-upgrade=yes \
    --socket-dirs=$XDG_RUNTIME_DIR \
    --opengl=yes \
    --html=on \
    --compression-level=1 \
    --start="ImageJ-linux64" \
    --exit-with-windows=yes \
    --daemon=no \
    --clipboard=yes \
    --xvfb="/usr/bin/Xvfb +extension Composite -screen 0 1920x1080x24+32 -nolisten tcp -noreset -auth $XAUTHORITY" \
    $DISPLAY \
    2>/tmp/xpra.log | tee --append /tmp/xpra.log