+Available options:
+- `ADMIN_PASSWORD`: setup a specific admin password. If not set, a random password will be generated.
+- `WEB_ROOT`: setup a specific domain to point at when generating links (e.g. 'jirafeau.mydomain.com/').
+- `VAR_ROOT`: setup a specific path where to place files. default: '/data'.
+- `FILE_HASH`: can be set to `md5` (default), `partial_md5` or `random`.