Dockerfile

FROM python:3.10-buster

ENV FTP_USER=foo \
	FTP_PASS=bar \
	GID=1000 \
	UID=1000 \
	GOOGLE_APPLICATION_CREDENTIALS=/credentials.json

# Install system dependencies
RUN set -e; \
    apt-get update -y && apt-get install -y \
    tini \
    lsb-release; \
    gcsFuseRepo=gcsfuse-`lsb_release -c -s`; \
    echo "deb http://packages.cloud.google.com/apt $gcsFuseRepo main" | \
    tee /etc/apt/sources.list.d/gcsfuse.list; \
    curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | \
    apt-key add -; \
    apt-get update; \
    apt-get install -y gcsfuse vsftpd net-tools \
    && apt-get clean


RUN mkdir -p /var/run/vsftpd/empty  # default secure_chroot_dir
COPY [ "/src/vsftpd.conf", "/etc" ]
COPY [ "/src/docker-entrypoint.sh", "/" ]
COPY [ "/credentials.json", "/" ]
RUN chmod +x /docker-entrypoint.sh

# Use tini to manage zombie processes and signal forwarding
# https://github.com/krallin/tini
ENTRYPOINT ["/usr/bin/tini", "--"]


CMD ["/docker-entrypoint.sh"]

EXPOSE 20/tcp 21/tcp 40000-40009/tcp
HEALTHCHECK CMD netstat -lnt | grep :21 || exit 1