How to install oddjob-mkhomedir repository on AMI box using command line

I'm trying to install oddjob-mkhomedir and it comes back with no package available nothing to do. I used sudo yum install oddjob-mkhomedir so I'm assuming the repository is not available.

My question is if the repository is indeed missing, where would I find it and how would I add it? Next would be how would I install oddjob-mkhomedir?

I found this page, but I'm not sure that it is correct