containers-monit/Dockerfile

ARG ALPINE_VERSION=3.13.6
ARG BASE_IMAGE=alpine
FROM ${BASE_IMAGE}:${ALPINE_VERSION} as build

RUN apk add --no-cache tzdata

COPY ./monitrc /etc/monitrc
RUN chmod 600 /etc/monitrc

FROM ${BASE_IMAGE}:${ALPINE_VERSION}
ARG ALPINE_VERSION
MAINTAINER "f <f@sutty.nl>"
ENV EMAIL=monit@sutty.nl
ENV EMAIL_FROM=monit@sutty.nl
ENV MMONIT=mmmonit.athshe.sutty.nl
ENV CREDENTIALS=mmmonit:mmmonit.athshe.sutty.nl

# Locale
ENV LANG="C.UTF-8"

# Sutty's repository
RUN echo ${ALPINE_VERSION} | cut -d . -f 1,2 | xargs -I {} echo https://alpine.sutty.nl/alpine/v{}/sutty | tee -a /etc/apk/repositories
RUN wget https://alpine.sutty.nl/alpine/sutty.pub -O /etc/apk/keys/alpine@sutty.nl-5ea884cd.rsa.pub

# Install monit and remove default config
RUN apk add --no-cache tini monit knsupdate
COPY --from=build /usr/share/zoneinfo/UTC /etc/localtime

# Create directories
RUN install -dm 2750 -o root -g root /etc/monit.d
RUN install -dm 2750 -o root -g root /etc/monit.d/external/
RUN install -dm 2750 -o root -g root /var/lib/monit

# Install config
COPY --from=build /etc/monitrc /etc/monitrc
COPY ./nsupdate.sh /usr/local/bin/nsupdate
COPY ./whatsmyip6.sh /usr/local/bin/whatsmyip6
COPY ./syslogize.sh /usr/local/bin/syslogize
COPY ./zeroconf.sh /usr/local/bin/zeroconf
COPY ./zeroconf.conf /etc/zeroconf.conf

# Allow access to the web GUI
EXPOSE 2812

# Use tini as init
ENTRYPOINT ["/sbin/tini", "--"]

# Run monit, it will take care of running services afterwards
CMD ["/usr/bin/monit"]