Dockerfile

FROM ubuntu:22.04
LABEL Description="vsftpd prepopulated image for testing"

# install packages
RUN apt-get update && apt-get install -y --no-install-recommends vsftpd ssl-cert apache2-utils libpam-pwdfile && rm -rf /var/lib/apt/lists/*

# create ftp users
RUN mkdir /etc/vsftpd &&\
    htpasswd -cdb /etc/vsftpd/ftpd.passwd user1 pass1 &&\
    htpasswd -db /etc/vsftpd/ftpd.passwd user2 pass2 &&\
    htpasswd -db /etc/vsftpd/ftpd.passwd user3 ""

# give ftp user daemon uid:gid
RUN usermod -ou 1 ftp && usermod -g 1 ftp

# create working directory
RUN mkdir /var/ftp && mkdir /var/ftp/pub && chown ftp:ftp /var/ftp/pub
VOLUME /var/ftp/pub

# copy configs
ADD root /

# create entrypoint
ENTRYPOINT ["/bootstrap.sh"]

# expose ports
EXPOSE 21 990 21000-21100