The`nethserver-backup-data package`` requires
nethserver-backup-config. This module implements a traditional incremental/full backup. It uses the key
status: enable or disable the automatic backup, can be
disabled. Default is
enabled. Regardless of this property, the backup is always executed if started manually
BackupTime: time of the scheduled backup. Must be in the form ``hh:mm. Default is
VFSType: set the backup medium, can be
SMBShare: contains the Samba share name
SMBHost: host name of the SMB server
SMBLogin: login user for the SMB server
SMBPassword: password for the SMB server
USBLabel: contains the filesystem label
NFSHost: host name of the NFS server
NFShare: contains the NFS share name
WebDAVUrl: contains the WebDAV URL address
WebDAVLogin: login user for the WebDAV server
WebDAVPassword: password for the WebDAV server
Program: program used to perfrom the backup. Backup and restore processes will look for an action called respectively
restore-data-<Program>. Default is: duplicity
Type: can be
full, a full backup will be executed every time. If
incremental, a full backup will be executed once a week at
FullDay, all other backups will be incremental
FullDay: number of day of the week when a full backup will be executed. Can be a number from 0 (Sunday) to 6 (Saturday). Defaults is
Mount: directory where the share (or usb drive) will be mounted. Defaults is
LogFile: output of the backup process. Default is
VolSize: size of chunks in MB, if supported by
Program. Default is 250
CleanupOlderThan: time to retain backups, accept duplicity syntax (eg. 7D, 1M). Default is: never (keep all backups)
cifs: save the backup on a remote SMB server. Authentication is mandatory.
nfs: save the backup on a remote NFS server. No authentication supported.
usb: save the backup on a USB device. The device must have a writable filesystem with a custom label. When the backup is started, the system will search for an USB device with the filesystem label saved in
webdav: save the backup on a webDAV server. When using a secure connection make sure the target webDAV server has a valid SSL certificate, otherwise the system will fail mounting the filesystem.
The main command is
/sbin/e-smith/backup-data which starts the backup process (if enabled). The backup is composed of three parts:
- pre-backup-data event: prepare the system and mount the destination share
- /etc/e-smith/events/actions/backup-data-<program> action: execute the backup. This actions must implement full/incremental logic. The backup is directly saved on the mounted share (or usb device).
- post-backup-data: umount share and cleanup. Actions in this event can also implement retention policies (currently not implemented).
- /var/log/backup-data.log: parsable log
- /var/log/last-backup.log: backup program output
In the pre-backup-data event the disk analyzer (Duc) make an indexing of filesystem, useful to create the graphical tree.
The name of the actions is
/etc/e-smith/events/actions/nethserver-restore-data-duc-index and it compose the JSON file to create
the navigable graphic tree.
Add custom include/exclude inside following files:
All backups can be deleted after a certain amount of time. Cleanup process takes place in post-backup-data event.
A log of cleanup action is saved in
The default program used for backup is duplicity using the globbing file list feature. Encryption is disabled and duplicity cache is stored in
We plan to support all duplicity features in the near future.
See http://duplicity.nongnu.org/ for more information.
Listing backup sets¶
To list current backup sets:
- Mount the backup directory
- Query duplicity status
- Umount the backup directory
/etc/e-smith/events/actions/mount-`config getprop backup-data VFSType` duplicity collection-status --no-encryption --archive-dir /var/lib/nethserver/backup/duplicity/ file:///mnt/backup/`config get SystemName` /etc/e-smith/events/actions/umount-`config getprop backup-data VFSType`
Restore command line¶
The main command is
/sbin/e-smith/restore-data which starts the restore process:
- pre-restore-data event: used to prepare the system (Eg. mysql stop)
- restore-data-<program> action: search for a backup in the configuration database and restore it
- post-restore-data event: used to inform programs about new available data (eg. mysql restart)
Restore grahic interface¶
After the selection of the paths to restore, the main command called is
reads the list of paths to restore and creates a executable command to restore the directories. If the second option of restore was selected (Restored file without overwrite the existing files), after the restore in a temp directory, the script moves the restored directories in the correct paths.
- /var/log/restore-data.log: parsable log
- /var/log/restore.log: process output