Add missing dockerfile

Dockerfile

@@ -0,0 +1,17 @@
+FROM debian:sid AS builder
+WORKDIR /root
+RUN apt update && apt -y install pkg-config build-essential make libtoxcore-dev dh-make git python3-jinja2 python3-requests
+RUN git clone https://github.com/gjedeer/tuntox.git && cd tuntox && tar -zcf ../tuntox_0.0.9.orig.tar.gz . && dpkg-buildpackage -us -uc
+
+FROM alpine:latest
+
+COPY scripts/tokssh /usr/bin/tokssh
+COPY --from=0 /root/tuntox/tuntox /usr/bin/tuntox
+
+RUN chmod +x /usr/bin/tuntox  /usr/bin/tokssh && \
+	mkdir /data
+
+EXPOSE 33446/tcp
+EXPOSE 33446:33447/udp
+
+CMD ["/usr/bin/tuntox", "-C", "/data", "-t", "33446", "-u", "33446:33447", "-d"]