FROM python:3.7.0-alpine3.8

RUN find / -xdev -type f -perm /u+s -exec chmod -c u-s {} \; \
    && find / -xdev -type f -perm /g+s -exec chmod -c g-s {} \;

RUN adduser -S ftp-sink
USER ftp-sink
ENV PATH "${PATH}:/home/ftp-sink/.local/bin"

VOLUME /sink
ENV FTP_USERNAME user
ENV FTP_PASSWORD_SHA256 2bb80d537b1da3e38bd30361aa855686bde0eacd7162fef6a25fe97bf527a25b
ENV FTP_CONTROL_PORT 2121
ENV FTP_PASSIVE_PORT 62121
EXPOSE $FTP_CONTROL_PORT $FTP_PASSIVE_PORT

RUN pip install --user pyftpd-sink==0.3

CMD ["pyftpd-sink", "--root-dir", "/sink"]