FROM python

COPY websockify-*.tar.gz /

RUN python3 -m pip install websockify-*.tar.gz
RUN rm -rf /websockify-* /root/.cache

VOLUME /data

EXPOSE 80

WORKDIR /opt/websockify

ENV LOCALPORT="80"
ENV DEST="box.imzadi.de:23"
ENV OPTS="--web /data"

ENTRYPOINT ["/usr/local/bin/websockify", "$OPTS", "$LOCALPORT", "$DEST"]