And it doesn’t matter which one you use? And they are running the same image? That is perplexing.
The only advantage I can see to running two containers like that on the same host is to make it possible to do zero-downtime upgrades. Since you’re not upgrading very often, it seems that you’ve got unnecessary complexity.
You need sometihng like this in your web_only.yml:
after_bundle_exec:
- replace:
filename: /etc/nginx/conf.d/discourse.conf
from: "types {"
to: |
set_real_ip_from 172.16.0.0/12;
set_real_ip_from 10.0.0.0/8;
real_ip_recursive on;
real_ip_header X-Forwarded-For;
types {