Hi

I'm not sure if this is due to me having a nginx.conf mapped to a file

Yes, it is, this image work on the assumption that you use the internally provided nginx.conf (inherited from the nginx official image).

If you need to provide your own nginx.conf, I'd highly recommend to build your own image from nginxproxy/nginx-proxy and programmatically change the nginx.conf file inside your Dockerfile, like we do ourselves.

Providing a static version of nginx.conf puts you at risk of breakage if nginx update the base file they provide, or we change something ourselves like in #2359 (which was mirroring what nginx does on their own Dockerfiles, invoking nginx with -g daemong off; rather than putting it in the nginx.conf file like we did previously).

What changes are you making to nginx.conf ? 🤔

Also the correct quick solution in this case is to remove daemon off; from your nginx.conf file.

Thanks for the quick response! I compared my nginx.conf with the version from the stock container image, and the changes were pretty minor. I realized I can just add them under /etc/nginx/conf.d and they'll get included, so I was able to go back to the stock version and the latest tag works for me now. Thanks for the help!