Thanks David --- for all your work on the documentation and reply below -- very much appreciated.
For historical reasons, we plan to go with a WAR and place it in /opt/tomcat/webapps
Our sys admin prefers an Apache HTTPD front-end and standalone tomcat as is (this is the only part we are diverting from your docs).
To build a WAR.....do we run './build.sh package' at '/opt/workspace/cas-overlay-template'?
I don't see the WAR having the configurations we added in '/opt/workspace/cas-overlay-template/etc'
Spending many hours in fron of the computer --- my apologies if I am less than coherent.