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Line 7: − + − * Bernie Innocenti <bernie AT sugarlabs DOT org> − Line 18:
Line 16: − * [[http://codewiz.org/gitweb/wizbackup.git|Source code]]+ − * [[http://codewiz.org/gitweb/wizbackup.git/blob/HEAD:/INSTALL|Installation instructions]]+ + − + + + + + + + Line 31:
Line 36: − + + + − − * Replace <> with your values Line 43:
Line 48: − − == See Also == − − * There are instructions on how to set up a backup here: [[Infrastructure_Team/Template_virtual_machine_lucid]]
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== Administrative contact ==
== Administrative contact ==
* Bernie Innocenti <bernie AT sugarlabs DOT org>
== Sysadmins ==
== Sysadmins ==
== wizbackup ==
== wizbackup ==
* [http://codewiz.org/gitweb/wizbackup.git Source code]
* [http://codewiz.org/gitweb/wizbackup.git/blob/HEAD:/INSTALL Installation instructions]
This is the main backup script for all [[Machine|Sugar Labs Machines]]. It's a minimalist script based on rsync and keeps a history of N days using hard-links. While it's very very simple, wizbackup gets the job done and has the added benefit of not requiring any tools to read or restore a backup. The advantage over similar backup solution is that backups are just plain filesystem snapashots of the source machines; the main disadvantage is poor performance with large files which change often, such as logs or databases (my solution is to exclude these and backup the data using ad-hoc methods, such as SQL dumps).
This is the main backup script for all [[Machine|Sugar Labs Machines]]. It's a minimalist script based on rsync and keeps a history of N days using hard-links. While it's very very simple, wizbackup gets the job done and has the added benefit of not requiring any tools to read or restore a backup. The advantage over similar backup solution is that backups are just plain filesystem snapashots of the source machines; the main disadvantage is poor performance with large files which change often, such as logs or databases (my solution is to exclude these and backup the data using ad-hoc methods, such as SQL dumps).
The `wizbackup-driver` script runs daily on the backup servers from `/etc/cron.daily/wizbackup`.
The `wizbackup-driver` script runs daily on the backup servers from `/etc/cron.daily/wizbackup`.
It reads a list of hostnames to backup from `/backup/HOSTS/<machine-group-name>` and an optional list of files exclusions from `/backup/EXCLUDES`.
It reads a list of hostnames to backup from `/backup/HOSTS/<machine-group-name>` and an optional list of files exclusions from `/backup/EXCLUDES`, in the same format taken by the `--exclude` flag of rsync.
For each machine in the list, `wizbackup-driver` invokes `wizbackup` with this command-line:
wizbackup <hostname>:/ <local-backup-dir> --exclude-file /backup/EXCLUDE/ALWAYS --exclude-file /backup/EXCLUDE/<hostname>
Wizbackup uses rsync and ssh to connect to the remote machine. Hence, the backup server must be authorized to connect as root to all backup hosts (e.g.: by storing the identity in `/root/.ssh/authorized_keys`). Wizbackup reads the ssh private key from `/etc/wizbackup/ssh_id`).
== Sunjammer ==
== Sunjammer ==
The MySQL, PostgreSQL and LDAP databases are being backed up daily on backup.sugarlabs.org, encrypted with gpg. TODO: at the moment, we don't have a script to cleanup old backups.
The MySQL, PostgreSQL and LDAP databases are being backed up daily on backup.sugarlabs.org, encrypted with gpg. TODO: at the moment, we don't have a script to cleanup old backups.
== Restoring files from duplicity backups ==
== Restoring files from duplicity backups (OBSOLETE) ==
'''We no longer use Duplicity.'''
To restore a backup try something like:
To restore a backup try something like:
duplicity restore -t 7D --file-to-restore <source/path/to/restore/from> scp://sugarbackup@backup.sugarlabs.org/backup/<machine.sugarlabs.org> </destination/path/to/restore/to>
duplicity restore -t 7D --file-to-restore <source/path/to/restore/from> scp://sugarbackup@backup.sugarlabs.org/backup/<machine.sugarlabs.org> </destination/path/to/restore/to>
duplicity restore -t 7D --file-to-restore var/lib/mysql/wordpress scp://sugarbackup@backup.sugarlabs.org/backup/sunjammer.sugarlabs.org /home/bernie/restore/wordpress
duplicity restore -t 7D --file-to-restore var/lib/mysql/wordpress scp://sugarbackup@backup.sugarlabs.org/backup/sunjammer.sugarlabs.org /home/bernie/restore/wordpress
[[Category:Service|zzz]]
[[Category:Service|zzz]]