This section describes how to create backups of the Salt Master node using
Backupninja. During the Salt Master node backup, Backupninja creates
backup configuration scripts containing the data about PKI and CA certificates
located in the /etc/salt/pki and /etc/pki/ca directories as well as
the cluster model metadata located in the /srv/salt/reclass directory.
Using these backup scripts, you can easily restore your Salt Master node in
case of hardware and software failures.