MCS File store protection

[David Compton]

I am considering using SELinux to secure the file system of a server that
will be used as a multiple category file store.  The individual categories
cannot have the ability to access data in a directory of a different
category.  Users for each category will need to access the server via samba
and NFS.  Additional user interfaces my become necessary in the future
(http(s), (s)ftp, etc).

I am new to writing SELinux policies and was hoping that someone could
point me in the direction of a template for a similar design that I could
use as a base.

Thank you,
David