79
edits
Changes
Jump to navigation
Jump to search
mLine 1:
Line 1: − + − + − * backup.sugarlabs.org: daily backups of all other systems (see below) + − bernie AT sugarlabs DOT org+ − − − − For non-emergency calls, preferably send email to the administrative contact. − + − + − == backup.sugarlabs.org ==+ − This is the main backup server for all [[Machine|Sugarlabs Machines]]. The hostname backup.sugarlabs.org is an alias for owl.laptop.org, a machine hosted at OLPC.+ + − Backup account:+ − sugarbackup@backup.sugarlabs.org:/home/sugarbackup/+ − We use the script system-full-backup to perform the daily backups with duplicity. Each machine backup is encrypted with a different password. If you need a password, ask [[User:Bernie]].+ Line 32:
Line 29: − − == Restoring files from duplicity backups == − − 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> − − * Replace <> with your values − − − Example: − − duplicity restore -t 7D --file-to-restore var/lib/mysql/wordpress scp://sugarbackup@backup.sugarlabs.org/backup/sunjammer.sugarlabs.org /home/bernie/restore/wordpress − − == See Also == − − * There are instructions on how to set up a backup here: [[Infrastructure_Team/Template_virtual_machine_lucid]]
fix: typo
== Locations ==
== Locations ==
* /backup on [[Machine/treehouse]]: daily filesystem backups for [[Machine/jita]]
* /backup on [[Machine/justice]]: daily filesystem backups for [[Machine/freedom]]
* /backup on [[Machine/housetree]]: daily filesystem backups for [[Machine/sunjammer]]
* /backup on [[Machine/freedom]]: daily filesystem backups for [[Machine/justice]]
* /backup on sunjammer.sugarlabs.org: daily database dumps (ldap, mysql and pgsql) for [[Machine/sunjammer]]
* /backup on sunjammer.sugarlabs.org: daily database dumps (ldap, mysql and pgsql) for [[Machine/sunjammer]]
== Administrative contact ==
== Administrative contact ==
* [[User:Bernie|Bernie Innocenti]]
== wizbackup ==
== Sysadmins ==
* [[User:Bernie|Bernie Innocenti]]
* [https://codewiz.org/gitweb/wizbackup.git Source code]
* Ed McNierney @ OLPC (local access)
* [https://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 snapshots 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`.
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.
[[Category:Service|zzz]]
[[Category:Service|zzz]]