nginx.txt

map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}

upstream websocket {
  server 127.0.0.1:5555;
}

server {
  listen 443 ssl; # managed by Certbot
  server_name 👾;

  ssl_certificate /etc/letsencrypt/live/👾/fullchain.pem; # managed by Certbot
  ssl_certificate_key /etc/letsencrypt/live/👾/privkey.pem; # managed by Certbot
  include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot

  location / {
    proxy_pass http://websocket;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
    proxy_read_timeout 86400;
  }

}