In playing around with oVirt in the home lab in the last couple of days, I wanted to show you guys the resolution to the error "Host is not added in Known_Hosts" when you are trying to run the GlusterFS single host hyperconverged wizard in oVirt.
The error looks like this:
To get around this issue, you need to run the following command to add your SSH signature of the host itself to its own known_hosts:
ssh-keyscan ovirthost01.cloud.local >> /root/.ssh/known_hosts
Now when you run the command it should go past the error you were receiving before. I hope this helps others as this took me a bit to figure out.