FROM debian:buster-slim

ARG KASMVNC_PACKAGE_DIR
COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
RUN apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
RUN apt-get update && apt-get -y install x11-xserver-utils xterm twm

RUN useradd -m docker && addgroup docker ssl-cert

USER docker

ENTRYPOINT bash -c "vncserver :1 -interface 0.0.0.0 && vncserver -kill :1 && vncserver :1 -depth 24 -geometry 1280x1050 -websocketPort 8443 -cert /etc/ssl/certs/ssl-cert-snakeoil.pem -key /etc/ssl/private/ssl-cert-snakeoil.key -sslOnly -FrameRate=24 -interface 0.0.0.0 -httpd /usr/share/kasmvnc/www && tail -f $HOME/.vnc/*.log "