As you may know, the recommended strategy to start a CAS deployment today is via the WAR Overlay Installation Method. The idea is that a deployment gets to keep only local customizations and inherits everything else from a pre-built pre-configured instance. Not only this allows one to keep track of intentional changes, but also makes it easier to upgrade the software in place by simply bumping the CAS version in the overlay script.
Today, adopters are given 3 choices to deploy an overlay:
java -jar <cas-war-file>type of command.
<cas-war-file>into an external container of choice, such as Apache Tomcat.
The 3rd option is similar to the native
java -jar ... command with the main difference that the Spring Boot plugin is able to recognize the presence of Spring Boot’s
devtools that is shipped with CAS by default and allows for ad-hoc live monitoring of CAS resources.
This is specially helpful perhaps during UI design; such that you could keep modifying
js resources and CAS will auto-detect changes and allows you to
see them via a simple refresh of your browser.