Setting html page in Grafana


When I perform maintenance on my Garfana I wish to place html file, so when user accesses the Grafana site they will see the html file instead of the login page. How can set this? which location I have to place this html file?

I would install Apache or Nginx and configure it to listen on port 3000
(assuming you use the Grafana default), serving the web page you want people
to see, and start the service immediately you have stopped Grafana for
maintenance. Shut it down before re-starting Grafana, and ensure that it is
not set to auto-start on system boot.