public static String censorNumbers(String s) {
        return s.replaceAll("\\d", "-");
    }
Deploys an application

@param previousModel the previous model, or null if no previous
@param services the services file content
@param zone the zone this deploys to
@param validationOverrides the validation overrides file content, or null if none
@param containerCluster container cluster(s) which are declared in services
@return the new model and any change actions
config-model/src/test/java/com/yahoo/vespa/model/application/validation/ValidationTester.java