User uploads with nginx and docker - django

Question

I have a Django app where users can upload files containing data they want to be displayed in the app. The app is containerised using docker. In production I am trying to configure nginx to make this work and as far as I can tell it is working to some extent.
As far as I can tell the file does actually get uploaded as I can see it in the container, and I can also download it from the app. The problem I am having is that once the form has been submitted it is supposed to redirect to another form, where the user can assign stuff to the data in the app (not really relevant to the question). However, I am getting a 500 error instead.
I have taken a look at the nginx error logs and I am seeing:
[info] 8#8: *11 client closed connection while waiting for request, client: 192.168.0.1, server: 0.0.0.0:443
and
[info] 8#8: *14 client timed out (110: Operation timed out) while waiting for request, client: 192.168.0.1, server: 0.0.0.0:443
when the operation is performed.
I also want the media files to be persisted so they are in a docker volume.
I suspect the first log message may be the culprit but is there a way to prevent this from happening, or is it just a poor connection on my end?
Here is my nginx conf:
user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log debug;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
keepalive_timeout 65;
proxy_headers_hash_bucket_size 52;
client_body_buffer_size 1M;
client_max_body_size 10M;
gzip on;
upstream app {
server django:5000;
}
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name dali.vpt.co.uk;
location / {
return 301 https://$server_name$request_uri;
}
}
server {
listen 443 ssl;
listen [::]:443 ssl;
server_name dali.vpt.co.uk;
ssl_certificate /etc/nginx/ssl/cert.crt;
ssl_certificate_key /etc/nginx/ssl/cert.key;
location / {
# checks for static file, if not found proxy to app
try_files $uri #proxy_to_app;
}
# cookiecutter-django app
location #proxy_to_app {
proxy_set_header X-Forwarded-Proto https;
proxy_set_header X-Url-Scheme $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://app;
}
location /media/ {
autoindex on;
alias /app/tdabc/media/;
}
}
}
and here is my docker-compose file:
version: '2'
volumes:
production_postgres_data: {}
production_postgres_backups: {}
production_media: {}
services:
django: &django
build:
context: .
dockerfile: ./compose/production/django/Dockerfile
image: production_django:0.0.1
depends_on:
- postgres
- redis
volumes:
- .:/app
- production_media:/app/tdabc/media
env_file:
- ./.envs/.production/.django
- ./.envs/.production/.postgres
command: /start.sh
postgres:
build:
context: .
dockerfile: ./compose/production/postgres/Dockerfile
image: production_postgres:0.0.1
volumes:
- production_postgres_data:/var/lib/postgresql/data
- production_postgres_backups:/backups
env_file:
- ./.envs/.production/.postgres
nginx:
build:
context: .
dockerfile: ./compose/production/nginx/Dockerfile
image: production_nginx:0.0.1
depends_on:
- django
volumes:
- production_media:/app/tdabc/media
ports:
- "0.0.0.0:80:80"
- "0.0.0.0:443:443"
Any help or insight into this problem would be much appreciated.
Thanks for your time.
Update
Another thing that I should mention is that when I run the app with my production settings but set DEBUG to True it works perfectly but this is only happening when DEBUG is set to false.