user nginx; worker_processes auto; events { worker_connections 1024; multi_accept on; } http { include /etc/nginx/mime.types; default_type application/octet-stream; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 4096; gzip on; gzip_comp_level 5; gzip_min_length 1024; gzip_proxied any; gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml; map $http_upgrade $connection_upgrade { default upgrade; '' close; } upstream app_backend { server todolist-app:12011 max_fails=3 fail_timeout=10s; keepalive 64; } server { listen 12011; server_name _; # Adjust as needed for uploads client_max_body_size 20m; # Proxy API requests to Flask/Gunicorn location /api/ { proxy_pass http://app_backend; 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_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_read_timeout 120s; proxy_send_timeout 120s; proxy_connect_timeout 5s; proxy_buffering on; proxy_buffers 32 32k; proxy_busy_buffers_size 64k; } # All other routes (frontend SPA and static) via backend # Optionally, later mount static and serve directly location / { proxy_pass http://app_backend; 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 120s; proxy_send_timeout 120s; proxy_connect_timeout 5s; proxy_buffering on; proxy_buffers 32 32k; proxy_busy_buffers_size 64k; } } }