How to deploy my war file on osv by capstan?

I've written a Capstanfile like:
```
base: cloudius/osv-tomcat

cmdline: 

build: 

files:
 /usr/tomcat/webapps : ./myProject.war
```
This is a simple java web project.Put it under path 'tomcat/webapps' will do on my ubuntu system.I don't know what kind of cmdline is needed.Are there any advice on how to deploy war files on osv-tomcat?
THX a lot!
