Redirect to my website

Hi all, I have to redirect the http traffic to my website which is on my usb hard disk (my OMV installation is on a raspberry pi 3B+).
I have found in Docker rainist/redirector...is it what I'm looking for ?
If yes, once downloaded the image, what are the steps to be done ?
Sorry but I'm a newbie with OMV and Docker...so a step by step procedure is required for me

Oops...it's not an arm container, am I right ?