restart nginx container when upstream servers is updated

Question

I want to add/remove servers in my nginx running inside a docker container

I use ADD command in Dockerfile to add my nginx.conf to /etc/nginx dir.

# Copy a configuration file from the current directory ADD nginx.conf /etc/nginx/ 

then in my running nginx container that have a conf like this

# List of application servers upstream app_servers {     server 172.17.0.91:9000;     server 172.17.0.92:9000;     server 172.17.0.93:9000; } 

how do restart my nginx to take effect of the edited nginx.conf?

thank you in advance!

Answer 1

restarting the container is not advisable when you initialize Docker Swarm because it may remove the nginx service. So if you need an alternative aside docker restart; You can go inside the container and just run nginx -s reload

For example, in docker env, if you have the container named nginx

docker exec <nginx_container_id> nginx -s reload