permanent service account keys for kerberos NFS share

[Kevin Vasko]

Hello,

We have an application that does some data processing on our NFS server. Users typically
just ssh into a box which then has a kerberos key generated for them, which allows them
access the NFS share and run the script.

We are wanting to set this up in a more automated fashion. Such as running the script in
the background as a service. However, after a few days the kerberos keys become invalid
killing access to the NFS share and the data.

Is there a way to generate some account/keys that will have permanent access for service
level stuff like this? 

-Kevin