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REVERSE PROXY IMAGE
FROM nginx:1.23.1
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y certbot python3-certbot-nginx
COPY ./docker/nginx.conf.template /nginx.conf.template
COPY ./docker/nginx-ssl.conf.template /nginx-ssl.conf.template
COPY ./docker/entrypoint.sh /var/entrypoint.sh
RUN chmod +x /var/entrypoint.sh
Default nginx configuration has only one worker process running. "Auto" is a better setting for scalability.
Commenting out any existing setting, and adding the desired one is more robust against new docker image versions.
RUN sed -i "s/worker_processes/#worker_processes/" /etc/nginx/nginx.conf &&
echo "worker_processes auto;" >> /etc/nginx/nginx.conf &&
echo "worker_rlimit_nofile 16384;" >> /etc/nginx/nginx.conf
Override the default command of the base image:
See: https://github.com/nginxinc/docker-nginx/blob/1.15.7/mainline/stretch/Dockerfile#L99
CMD ["/var/entrypoint