FROM ubuntu:focal ENV STARTUPDIR=/dockerstartup ARG KASMVNC_PACKAGE_DIR COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/ RUN rm -f /tmp/kasmvncserver_*+*.deb; apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install RUN apt-get update && apt-get -y install xterm lsb-release RUN mkdir -p $STARTUPDIR COPY builder/startup/vnc_startup_barebones.sh $STARTUPDIR RUN useradd -m foo && addgroup foo ssl-cert USER foo ENTRYPOINT "/$STARTUPDIR/vnc_startup_barebones.sh"