40 lines
1.4 KiB
Docker
40 lines
1.4 KiB
Docker
FROM node:16.13.2-alpine
|
|
|
|
RUN apk update && apk add dnsmasq
|
|
|
|
WORKDIR /usr/app
|
|
|
|
ENV PATH="/usr/app/bin:${PATH}"
|
|
|
|
# schedule critical checks to run every 5 minutes (any failures will disable server)
|
|
RUN echo '*/5 * * * * source /etc/environment ; /usr/app/bin/cli run critical >> /proc/1/fd/1' >> /etc/crontabs/root
|
|
|
|
# schedule extended checks to run on every hour (optional checks, report only)
|
|
RUN echo '0 * * * * source /etc/environment ; /usr/app/bin/cli run extended >> /proc/1/fd/1' >> /etc/crontabs/root
|
|
|
|
COPY package.json yarn.lock ./
|
|
|
|
RUN yarn --frozen-lockfile
|
|
|
|
COPY src src
|
|
COPY cli cli
|
|
COPY bin bin
|
|
|
|
EXPOSE 3100
|
|
ENV NODE_ENV production
|
|
|
|
# 1. start dnsmasq in the background with:
|
|
# - alias PORTAL_DOMAIN with current server ip so it overrides potential load balancer request
|
|
# - default docker nameserver 127.0.0.11 for any other request
|
|
# 2. replace docker nameserver with dnsmasq nameserver in /etc/resolv.conf
|
|
# 3. start crond in the background to schedule periodic health checks
|
|
# 4. start the health-check api service
|
|
CMD [ "sh", "-c", \
|
|
"serverip=$(node src/whatismyip.js) && \
|
|
echo \"export serverip=${serverip}\" >> /etc/environment && \
|
|
dnsmasq --no-resolv --log-facility=/var/log/dnsmasq.log --address=/$PORTAL_DOMAIN/$serverip --server=127.0.0.11 && \
|
|
echo \"$(sed 's/127.0.0.11/127.0.0.1/' /etc/resolv.conf)\" > /etc/resolv.conf && \
|
|
crond && \
|
|
node src/index.js" \
|
|
]
|