directus/docs/guides/setup/nginx.md

Nginx Setup Guide

You can configure /etc/nginx/sites-available/default with the following config to use it as a reverse proxy to Directus:

. . .
    location / {
        proxy_pass http://localhost:8055;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}