server {

listen 80;

server_name _;

# React SPA static assets

location /app/ {

alias /usr/share/nginx/html/app/;

try_files $uri $uri/ /app/index.html;

}

# Root → SPA

location = / {

return 301 /app/;

}

# Proxy API + Subsonic + Media to Django

location ~ ^/(rest|api|media|django-admin|static)/ {

proxy_pass http://backend:8000;

proxy_http_version 1.1;

proxy_set_header Host $host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_set_header X-Forwarded-Proto $scheme;

proxy_read_timeout 300s;

proxy_buffering off;

# Limit upload size to prevent abuse (e.g. huge avatars/uploads).

client_max_body_size 10M;

}

}