Here's the nginx rule we use in our project.

upstream octane_upstream { server 127.0.0.1:8000; keepalive 64; }

server { listen 80; server_name multisite-caching-demo.test web2.test; root /var/www/html/public;

# Handle static files
location / {
    try_files /static/${host}${uri}_$args.html $uri @octane;
}

# Proxy to Octane
location @octane {
    proxy_pass http://octane_upstream;
    proxy_http_version 1.1;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_pass_request_headers      on;
}

}