Is there a good tutorial on the setup of kerberos to allow for generation of principal and keytab required by PutHDFS

[#1]

I'm trying to do a PutHDFS to a directory on a computer running HADOOP in single node fashion.

I've verified that hadoop is properly setup. I have also verified the connection from the Nifi PutHDFS processor to hadoop. However I see a permission denied. I'd like to solve this the "right way" using kerberos. I'm looking for the cleanest tutorial focused on this. I've found a bunch of fragments on the web, but nothing that is clean and complete.

[#2]

Perhaps im just looking for .. too easy. Tutorials, such as this one, suggest that the process is not simple... or at least not without a lot of steps

https://www.youtube.com/watch?v=zdJHrbTC0eE