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3.5. Automating Satellite Database Backups
Backup tasks can be automated so that they occur in non-peak times, such as the late evening or early morning. This also ensures they are performed regularly, and are not forgotten. The most effective way to automate backups is using
cron.
Procedure 3.6. To Automate Satellite Server Database Backups:
Create a new file called
backup-db.sh containing the following script. This script will stop the satellite, perform a database backup, and restart the satellite:
- Create a new file called
move-files.shcontaining the following script. This script will usersyncto move the backup files to a directory to be stored:#!/bin/bash rsync -avz /tmp/db-backup-$(date "+%F") <destination> &> /dev/null
#!/bin/bash rsync -avz /tmp/db-backup-$(date "+%F") <destination> &> /dev/nullCopy to Clipboard Copied! Toggle word wrap Toggle overflow Replace <destination> with the path to the backup directory.Alternatively, use the following script to achieve the same goal:#!/bin/bash scp -r /tmp/db-backup-$(date "+%F") <destination> &> /dev/null
#!/bin/bash scp -r /tmp/db-backup-$(date "+%F") <destination> &> /dev/nullCopy to Clipboard Copied! Toggle word wrap Toggle overflow - Switch to the root user, and open the
crontabfile in a text editor:crontab -e
# crontab -eCopy to Clipboard Copied! Toggle word wrap Toggle overflow Note
Thecrontabfile opens in vi by default. To change this behavior, change theEDITORvariable to the name of the text editor you prefer. - Create a suitable job definition to schedule the backup scripts to run:
0 3 * * * backup-db.sh 0 6 * * * move-files.sh
0 3 * * * backup-db.sh 0 6 * * * move-files.shCopy to Clipboard Copied! Toggle word wrap Toggle overflow Thiscrontabentry will run the backup at 03:00, and transfer the backup files at 06:00. Other options can be included as needed. You can also include a clean up script to remove older backup directories and prevent the backup storage from filling up. - Exit the editor to save the
crontabfile. The new rules take effect immediately.