# Elastic Search > During the installation process, a container will be launched with **root** privileges. This is required > in order to apply the correct permissions to the `Elastic Search` data directory. Afterward, the `Elastic Search` container > will run as a **non**-root user (default `568`). If you want to apply additional configuration you can by using additional environment variables. See the [Elastic Search documentation](https://www.elastic.co/guide/en/elasticsearch/reference/master/docker.html#docker-configuration-methods) for more information.