Dockerfile

FROM alpine:3.7

MAINTAINER David Coppit <david@coppit.org>

ENV TERM=xterm-256color

RUN true && \
\
echo "http://dl-cdn.alpinelinux.org/alpine/v3.7/community" >> /etc/apk/repositories && \
apk --update upgrade && \
\
# Basics, including runit
apk add bash curl htop runit && \
\
# Needed by our code
apk add expect libc6-compat && \
\
rm -rf /var/cache/apk/* && \
\
# RunIt stuff
adduser -h /home/user-service -s /bin/sh -D user-service -u 2000 && \
chown user-service:user-service /home/user-service && \
mkdir -p /etc/run_once /etc/service

# Boilerplate startup code
COPY ./boot.sh /sbin/boot.sh
RUN chmod +x /sbin/boot.sh
CMD [ "/sbin/boot.sh" ]

VOLUME ["/config"]

ADD https://www.noip.com/client/linux/noip-duc-linux.tar.gz /files/

RUN set -x \
  && chmod a+rwX /files \
  && tar -C /files -x -f /files/noip-duc-linux.tar.gz noip-2.1.9-1/binaries/noip2-x86_64 \
  && mv /files/noip-2.1.9-1/binaries/noip2-x86_64 /files \
  && rm -rf /files/noip-2.1.9-1 /files/noip-duc-linux.tar.gz

COPY ["noip.conf", "create_config.exp", "/files/"]

# run-parts ignores files with "." in them
COPY parse_config_file.sh /etc/run_once/parse_config_file
RUN chmod +x /etc/run_once/parse_config_file

COPY noip.sh /etc/service/noip/run
RUN chmod +x /etc/service/noip/run