The following stores the benchmark results in the `backups` directory.
The results contain Madeus information and OpenStack information:
1. The whole `mad` directory from `concerto-node` containing:
    * the source code,
    * the madeus environment `current/`,
    * the madeus results (e.g. deployment times, stdout) `MadBench(...)/`,
    * the concerto results (i.e. transition times) as JSONs.
2. The configuration files generated for OpenStack services per nodes,
3. The log files generated by OpenStack services per nodes.

```
(venv) $ python mad.py backup
```

A specific backup directory can be provided with `-b` or `--backup_dir`, check:

```
(venv) $ python mad.py backup --help
Usage: mad.py backup [OPTIONS]

  Backup the results.

Options:
  -e, --env PATH         Path to the environment directory to consider.
  -b, --backup_dir PATH  Path to the result directory to consider.
  --help                 Show this message and exit. Run the 'single' benchmark scenario described in ...