BackupT2BCloud
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Backup of VMs
The whole /var/lib/one directory is mounted from the volta fileserver, and regular scheduled snapshots are done automatically to tesla. You can access to these snapshots going through /var/lib/one/.zfs.
Backup of the OpenNebula database
The OpenNebula database being located in /var/lib/mysql, it is not backed up with the ZFS snapshots described in the previous section. That's why we have created a cron task to automatically do a regular dump of the mysql database into the /var/lib/one directory.
To avoid having to specify the user and password in the mysqldump command, we have created the file ~/.my.cnf with the following content :
[mysqldump] user=mysqluser password=secret
Here is the script that does a dump into a file :
#!/bin/bash # Create the backup directory if it doesn't exist BACKUPDIR=/var/lib/one/one_mysql_db_backups mkdir -p $BACKUPDIR # Remove backups older than 7 days find $BACKUPDIR -name 'one_db_mysqldump*' -mtime +7 -exec rm -f {} \; # Make a dump of the db to a file in BACKUPDIR DATE=`date +'%d-%m-%y_%H:%M:%S'` FILENAME=$BACKUPDIR"/one_db_mysqldump_$DATE" mysqldump opennebula > $FILENAME
Dumps older than 7 days are removed.
Here is the crontab command :
* 5,17 * * * /root/one_db_backup.sh > /var/log/one_db_backup.log 2>&1