site.conf

worker_processes 4;

events {
    worker_connections  1024;
}

http {
    server {
        listen                  80 http2;
        listen                  [::]:80 http2;
        root                    /var/www/poll/html;

        # logging
        access_log              off;
        error_log               /var/log/nginx/error.log warn;

        # index.html fallback
        location / {
            try_files $uri $uri/ /index.html;
        }

        # reverse proxy
        location /api {
            proxy_pass            http://api:3081/api;

            # Proxy headers
            proxy_http_version 1.1;
            proxy_set_header X-Real-IP         $remote_addr;

            # Proxy timeouts
            proxy_connect_timeout              60s;
            proxy_send_timeout                 60s;
            proxy_read_timeout                 60s;
        }
    }
}