Autobackup is an automated backup system which retrieves data to backup from a remote server and stores it on the storage server.
./backup.sh
All configuration is done in the backup.sh file. The following fields should be adapted to fit your needs:
BACKUPDIR=""
PASSWORD=""
BACKUPDATA=""
FREEUPSPACE=""
BACKUPDIR="/data/backup/"
PASSWORD="sf9h4jp398hncpg9vncj409bn"
FREEUPSPACE="no"
This will grab the folder /, without the directories defined as excludes, and it's subdirectories and files from the remote server, create a new archive, encrypts it and moves it to BACKUPDIR. The FREEUPSPACE variable sets, whether our server should check available disk space and delete backups in case it's full or not. In case that there are less than 10G disk space available, the script will delete the oldest 5 backups from BACKUPDIR.
If you want to decrypt the archive ( i.e. to restore the backuped data ) you can run the following command:
openssl aes-256-cbc -d -salt -in BACKUP.tar.aes -out backup.restored.tar
mkdir backup/
tar -xvf backup.restored.tar backup/
You now have all backuped files in the backup/ folder.
All servers are being added in the serverlist.template file. In order to have a working authentication, you have to add the SSH-KEY of the storage server to the server from which you want to grab files. You can add new servers using the following sheme:
<SERVER_HOSTNAME OR IP>|<USERNAME FOR AUTHENTICATION>|<EXCLUDE LIST>
If you don't want to have any EXCLUDE_LIST set for a specific server, set "empty" as exclude list and create an empty file called empty.
Each server has it's own exclude list which directories we don't want to backup, as well as we have a default exclude list for files which are being excluded from all servers. Actually, by default we backup the entire system ( / ). The default excludes list can be set using DEFAULT_EXCLUDES and it's format looks the same. An example for an exclude list looks like this:
DIRECTORY/
FILE.txt
DIRECTORY/
FILE.dat