bakauditor - Backup Auditor
What is this
bakauditor is an automatic backup auditor robot.
All of us have backups. Every day something is backing up on background of our desktops and somewhere on our servers. But what if backup has been failed and you haven't even received an alert about it? Probably you'll find you miss important backups only when your system is crashed and you need them.
People, who faced this problem at least once in a life, usually manually audit their backups from time to time. That's why I've decided to automate this boring stuff once and forever and created bakauditor.
What can it do
Currently, bakauditor supports backup audit via plugins:
file check backup, stored in file (modification time, min. size etc.)
dir get most recent file in directory and check it like file does
zfs check if ZFS snapshots exists on local or remote system
borg borg backup repositories, local or remote
How to use
and it will show you list of all your backups and their status.
You may also run
In this case, only failed backups are printed, otherwise you get a message:
Checked: 14, failed: 0 All backups are fine
bakauditor process exits with code 0 when everything is fine, and with error codes when something is wrong. So you may just get its output and send via e-mail or what you prefer when something is wrong. And e.g. weekly receive output even if everything is fine, to check bakauditor is running and all your backups are safe.
pip3 install bakauditor
Put configuration file to /usr/local/etc/bakauditor.yml. This is YAML file and it has the following sections.
default: time: 2d min-size: 10000000
Options in this section apply to all backup configurations, unless overriden.
The size may be specified in bytes, you may also use suffix "K" for Kbytes (kilobytes, not kibitytes, 1K = 1000 bytes), "M" for MBytes, "G" for Gbytes, "T" for TBytes.
server1: type: file path: /export/backups/server1/server1.dump.gz time: 3d min-size: 10000000
In the above example, we ask bakauditor to check backup stored in the specified file, the file should not be older than 3 days and have a minimal size of 10 megabytes to be considered as good backup.
Options time and min-size are optional if specified in default section.
server1: type: dir path: /export/backups/server1 time: 3d min-size: 10000000
This example will to the same as previous, but automatically get the most recent file in the specified directory and check it. Good, when you do e.g. incremental backups.
directory of directories
server1: type: dod path: /export/backups/somebackup time: 3d min-size:
This example considers backups are stored in separate directories inside "somebackup" directory. The program will find most recently created directory and calculate its total size.
server1: type: zfs time-fmt: "snapshot-%Y-%m%-%d-%H:%M:%S" fs: bakpool/server1
Option time-fmt is used to get snapshot creation time from snapshot name. We can not determine when ZFS snapshot has been created (unless we perform zfs get creation for every snapshot, which could be pretty slow), but if snapshot name contains time, we can decode it and check.
Option fs specifies file system, where snapshots are located.
Optionally, you may ask bakauditor to analyze ZFS snapshot on remote server via ssh, specifying ssh option:
server1: type: zfs time-fmt: "snapshot-%Y-%m%-%d-%H:%M:%S" fs: bakpool/server1 ssh: firstname.lastname@example.org
This option is just converted to command ssh <option_value> zfs list ... so you may specify any options for ssh program you like.
Note: min-size option for zfs snapshots is ignored.
borg-local: type: borg repo: /bak password: 123
To check repo on remote system, add "ssh" option.
Note: plugin requires borg >= 1.1.0, for older version use borg0 instead (doesn't check backup size).
- HP Data Protector
- VMWare DP
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