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add new dockerfile with s6 overlay and multiple proccesses to have background jobs updating accounts and zones

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This commit is contained in:
Steffen Schwebel 2021-05-27 21:32:00 +02:00
parent 00dc23f21b
commit 700fa0d9ce
3 changed files with 24 additions and 8 deletions
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21
docker/Dockerfile.BackgroundJob
View File

@ -83,7 +83,7 @@ ARG S6_VERSION=v2.2.0.3
ENV FLASK_APP=/app/powerdnsadmin/__init__.py \
USER=pda
RUN apk add --no-cache mariadb-connector-c postgresql-client py3-gunicorn py3-psycopg2 xmlsec tzdata libcap && \
RUN apk add --no-cache mariadb-connector-c postgresql-client py3-gunicorn py3-psycopg2 xmlsec tzdata libcap apk-cron && \
addgroup -S ${USER} && \
adduser -S -D -G ${USER} ${USER} && \
mkdir /data && \
@ -99,12 +99,27 @@ COPY ./docker/entrypoint.sh /usr/bin/
WORKDIR /app
RUN chown ${USER}:${USER} ./configs /app && \
cat ./powerdnsadmin/default_config.py ./configs/docker_config.py > ./powerdnsadmin/docker_config.py
# Add s6 overlay, so we can manage multiple processes
ADD https://github.com/just-containers/s6-overlay/releases/download/$S6_VERSION/s6-overlay-amd64-installer /tmp/
RUN chmod +x /tmp/s6-overlay-amd64-installer && /tmp/s6-overlay-amd64-installer /
RUN mkdir /etc/services.d/gunicorn && echo $'#!/usr/bin/execlineb -P\nwith-contenv\n' > /etc/services.d/gunicorn/run && echo "s6-setuidgid $USER" >> /etc/services.d/gunicorn/run && echo $'\n/usr/bin/entrypoint.sh gunicorn powerdnsadmin:create_app()' >> /etc/services.d/gunicorn/run && chmod +x /etc/services.d/gunicorn/run
# Create service script for gunicorn
RUN mkdir /etc/services.d/gunicorn && \
echo $'#!/usr/bin/execlineb -P\nwith-contenv\n' > /etc/services.d/gunicorn/run && \
echo "s6-setuidgid $USER" >> /etc/services.d/gunicorn/run && \
echo $'\n/usr/bin/entrypoint.sh gunicorn powerdnsadmin:create_app()' >> /etc/services.d/gunicorn/run && \
chmod +x /etc/services.d/gunicorn/run
# Create service script for cron
RUN mkdir /etc/services.d/cron && \
echo $'#!/usr/bin/execlineb -P\ncrond -f\n' > /etc/services.d/cron/run && \
chmod +x /etc/services.d/cron/run
# Add crontab entries
RUN echo "*/5 * * * * python3 /app/update_zones.py" >> /etc/crontabs/$USER && \
echo "*/5 * * * * python3 /app/update_accounts.py" >> /etc/crontabs/$USER
EXPOSE 80/tcp
#USER ${USER}
HEALTHCHECK CMD ["wget","--output-document=-","--quiet","--tries=1","http://127.0.0.1/"]
ENTRYPOINT ["/init"]

6
update_accounts.py
View File

@ -25,7 +25,9 @@ with app.app_context():
### Check if bg_domain_updates is set to true
if not status:
app.logger.error('Please turn on "bg_domain_updates" setting to run this job.')
sys.exit(1)
app.logger.debug('"bg_domain_updates" is disabled, exiting')
sys.exit(0)
### Start the update process
app.logger.info('Update accounts from nameserver API')
Account().update()

5
update_zones.py
View File

@ -16,7 +16,6 @@ import logging
from powerdnsadmin import create_app
from powerdnsadmin.models.domain import Domain
from powerdnsadmin.models.setting import Setting
app = create_app()
app.logger.setLevel(logging.INFO)
@ -25,8 +24,8 @@ with app.app_context():
### Check if bg_domain_updates is set to true
if not status:
app.logger.error('Please turn on "bg_domain_updates" setting to run this job.')
sys.exit(1)
app.logger.debug('"bg_domain_updates" is disabled, exiting')
sys.exit(0)
### Start the update process
app.logger.info('Update domains from nameserver API')