FROM ubuntu:16.04 RUN apt-get update && \ apt-get install -y --no-install-recommends \ ca-certificates \ curl \ gcc \ git \ libc6-dev \ python \ xz-utils COPY emscripten.sh / RUN bash /emscripten.sh ENV PATH=$PATH:/rust/bin COPY emscripten-entry.sh / ENTRYPOINT ["/emscripten-entry.sh"]