I deployed a centOS7 VM this weekend and followed the install instructions. Running the install script failed. The only Docker it started was the homeassistant/amd64-hassio-supervisor and it was not connected to the servers ports.
I fiddled with it for a few hours and never did get it working.
I did deploy an ubuntu server and get it working however I would have prefered to have a CentOS system as ubuntu is a one off in my network.