FROM ubuntu:latest
# for a specific version of ubuntu use a tag like ubuntu:20.04 or similar
COPY files/preseed.txt /tmp/preseed.txt
RUN debconf-set-selections /tmp/preseed.txt &&\
  export DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true &&\
  apt-get update &&\
  apt-get install -y openssh-server adminer mariadb-server sudo
RUN a2enconf adminer

# create default user "jdoe"
RUN useradd -rm -d /home/jdoe -s /bin/bash -G sudo,www-data jdoe
RUN echo 'jdoe:jdpasswd' | chpasswd

# set permissoins to /var/www and create symlink 
COPY files/phpinfo.php /var/www/html/phpinfo.php
RUN chown -R jdoe.jdoe /var/www
RUN ln -s /var/www /home/jdoe/www

# clean up apt cache
RUN apt-get autoclean -y &&\
  apt-get autoremove -y &&\
  rm -rf /var/lib/apt/lists/*

# startup script
COPY files/startup.sh /usr/local/bin/startup.sh
CMD /bin/bash /usr/local/bin/startup.sh

EXPOSE 22 80