map nginx conf within docker to correct location - docker

Question

I've been struggling to make changes to my docker app. After a lot of trial and error it looks what I thought was my nginx conf file might not actually be my nginx conf file.
I have determined this because I tried removing it entirely and my app runs the same with docker.
It looks like changes I make to my nginx service via the app.conf file have been having no impact on the rest of my app.
I am trying to understand if my volume mapping is correct. Here's my docker compose:
version: "3.5"
services:
collabora:
image: collabora/code
container_name: collabora
restart: always
cap_add:
- MKNOD
environment:
- "extra_params=--o:ssl.enable=false --o:ssl.termination=true"
- domain=mydomain\.com
- dictionaries=en_US
ports:
- "9980:9980"
volumes:
- ./appdata/collabora:/config
nginx:
image: nginx:1.15-alpine
restart: unless-stopped
depends_on:
- certbot
- collabora
volumes:
# - ./data/nginx:/etc/nginx/conf.d
- ./data/nginx:/etc/nginx
- ./data/certbot/conf:/etc/letsencrypt
- ./data/certbot/www:/var/www/certbot
ports:
- "80:80"
- "443:443"
command: "/bin/sh -c 'while :; do sleep 6h & wait $${!}; nginx -s reload; done & nginx -g \"daemon off;\"'"
certbot:
image: certbot/certbot
restart: unless-stopped
volumes:
- ./data/certbot/conf:/etc/letsencrypt
- ./data/certbot/www:/var/www/certbot
entrypoint: "/bin/sh -c 'trap exit TERM; while :; do certbot renew; sleep 12h & wait $${!}; done;'"
My projects directory is:
/my_project
docker-compose.yaml
data
nginx
app.conf
And then my app.conf has various nginx settings
server {
listen 80;
server_name example.com www.example.com;
server_tokens off;
location /.well-known/acme-challenge/ {
root /var/www/certbot;
}
location / {
return 301 https://$host$request_uri;
}
} ... more settings below
Assuming I'm correct that my app.conf file is not being used, how can I correctly map app.conf on local to the correct place in the nginx container?

Answer 1

nginx conf directory is
/etc/nginx/nginx.conf
This File has an include of all of contento from
/etc/nginx/conf.d/*
You can verify your nginx.conf in use executing a ps -ef | grep nginx on your container.
Verify your default.conf. Anyway, in your compose you must have:
volumes:
- ./data/nginx:/etc/nginx/conf.d
Try with absolute path
Regards