Dockerfile

FROM phusion/baseimage:0.9.19
LABEL org.freenas.interactive="false"                                   \
      org.freenas.version="2"                                           \
      org.freenas.upgradeable="true"                                    \
      org.freenas.expose-ports-at-host="true"                           \
      org.freenas.autostart="true"                                      \
      org.freenas.web-ui-protocol="http"                                \
      org.freenas.web-ui-port="5050"                                    \
      org.freenas.web-ui-path=""                                        \
      org.freenas.port-mappings="5050:5050/tcp"                         \
      org.freenas.volumes="[                                            \
          {                                                             \
              \"name\": \"/config\",                                    \
              \"descr\": \"Config storage space\"                       \
          },                                                            \
          {                                                             \
              \"name\": \"/downloads\",                                 \
              \"descr\": \"Downloads volume\"                           \
          }                                                             \
      ]"                                                                \
      org.freenas.settings="[                                           \
          {                                                             \
              \"env\": \"WEBPASS\",                                     \
              \"descr\": \"Web UI Password\",                           \
              \"optional\": true                                        \
          },                                                            \
          {                                                             \
              \"env\": \"PGID\",                                        \
              \"descr\": \"GroupID\",                                   \
              \"optional\": true                                        \
          },                                                            \
          {                                                             \
              \"env\": \"PUID\",                                        \
              \"descr\": \"UserID\",                                    \
              \"optional\": true                                        \
         }                                                              \
      ]"
RUN rm -rf /etc/service/sshd /etc/my_init.d/00_regen_ssh_host_keys.sh
ENV DEBIAN_FRONTEND noninteractive
ENV TERM screen

# Use baseimage-docker's init system.
CMD ["/sbin/my_init"]

RUN apt-get update -q \
 && apt-get install -qy \
    python2.7 \
    python-pip \
 && apt-get clean \
 && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# Install the latest available package.
# Pin setuptools to version 32 to avoid a race condition, see:
# https://github.com/pypa/setuptools/issues/951
RUN pip install -U \
    pip \
    setuptools==32 \
    flexget \
    transmissionrpc

# Add service files.
COPY init/ /etc/my_init.d/
COPY services/ /etc/service/
RUN chmod -v +x /etc/service/*/run
RUN chmod -v +x /etc/my_init.d/*.sh

EXPOSE 5050/tcp

VOLUME /config

# Add user.
RUN useradd -u 911 -U -s /bin/false abc \
 && usermod -G users abc