Host localHost = tomcat.createHost("localhost", appBase);
localHost.setAutoDeploy(false);
StandardContext rootContext = (StandardContext) tomcat.createContext(contextPath, "webapp");
rootContext.setDefaultWebXml("web.xml");
localHost.addChild(rootContext);
Engine engine = tomcat.createEngine();
engine.setDefaultHost(localHost.getName());
engine.setName("TomcatEngine");
engine.addChild(localHost);