FROM perl:5.22

ENV PERL_MM_USE_DEFAULT=1 PERL_CARTON_PATH=/carton

COPY cpanfile cpanfile.snapshot /metacpan-api/
WORKDIR /metacpan-api

RUN apt-get update \
    && apt-get install -y libgmp-dev rsync \
    && cpanm App::cpm \
    && cpm install -g Carton \
    && useradd -m metacpan-api -g users \
    && mkdir /carton /CPAN \
    && cpm install -L /carton \
    && rm -fr /root/.cpanm /root/.perl-cpm /var/cache/apt/lists/* /tmp/*

RUN chown -R metacpan-api:users /metacpan-api /carton /CPAN

VOLUME /carton

VOLUME /CPAN

USER metacpan-api:users

EXPOSE 5000

CMD ["carton", "exec", "plackup", "-p", "5000", "-r"]