NBServerMigrator Update: rename operation - when NetBackup snapshot manager is configured

Steps to perform after rename when snapshot manager is configured in the environment:

After the rename has been completed, perform the following:

1. Update the bp.conf of the snapshot manager:
   a) go to the path /cloudpoint/openv/netbackup/
   b) edit the file bp.conf
   c) Make the first entry as SERVER = new_name
       where: new_name is the new hostname of the NetBackup primary server.
    
2. update the hosts file of the snapshot manager
   a) edit /etc/hosts file and add the <IP> <new_name> entry.
   b) edit the file /cloudpoint/openv/etc/hosts and add the <IP> <new_name> entry.
    
3. Fetch the new certificates on the snapshot manager:
   flexsnap_configure renew --primary <new-primary-server-name>  --token <re-issue-token>
   Where: re-issue-token is the token generated for the snapshot manager from the NetBackup.
    
4. Take a restart of the containers on the snapshot manager:
   systemctl stop podman
   systemctl start podman
    
5. Initiate fresh Backups

Note: If the media server used for the Backup is at NetBackup version 10.2.0.1 then upgrade it to a higher version for backups to work.