void cleanupZooKeeper() {
            try {
                List.of(DEFCONFIGS_ZK_SUBPATH, USER_DEFCONFIGS_ZK_SUBPATH, USERAPP_ZK_SUBPATH)
                    .forEach(path -> curator.delete(getZooKeeperAppPath(path)));
            } catch (Exception e) {
                logger.log(Level.WARNING, "Could not clean up in zookeeper: " + Exceptions.toMessageString(e));
                // Might be called in an exception handler before re-throw, so do not throw here.
            }
        }
Feeds application metadata to zookeeper. Used by config model to create config
for application metadata

@param metaData The application metadata.
configserver/src/main/java/com/yahoo/vespa/config/server/deploy/ZooKeeperDeployer.java