Selecting containers
The default list of containers to run on depends a property cargo.containers defined in CARGOHOME/core/samples/pom.xml. It can also be supplied at the commandline by using profiles (-P<containerId>).
For example if you only want to run on Tomcat 5.x you'd write: mvn -Ptomcat5x clean install
There are also some multi-container profiles, for example mvn -Pall-downloadable clean install will build CARGO and test the CARGO samples with all downloadable containers (Jetty's many versions, Tomcat's many versions, etc.)