safetwitch/backend-nginx.conf

server {
  server_name changethis;

    listen 443 ssl;
    listen [::]:443 ssl;
  
    ssl_certificate /etc/letsencrypt/live/changethis/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/changethis/privkey.pem;

    location / {
      proxy_pass http://localhost:7100;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "Upgrade";
      proxy_set_header Host $host;
    }
}

server {
  listen 80;
  listen [::]:80;
  server_name changethis;
  return 301 https://changethis$request_uri;
}