ausinch / check_backup

Nagios check of BTRFS snaps and PC backups.

check_backup

Nagios check of backup results On this server all backups create a one line status file in a status directory.
This check looks at that file, Nagios displays the result.
For a green Ok status the file must contain Success and not be older than warn_level

Below we see all backups were successful but 2 machines are in a critical state as the backups occured longer than parameter crit_level

Nagios cfg example

 define service {
     use generic-service
     host_name Backups
     service_description VM Center Backups
     check_command check_backup!debian10-vm.local!2880!4320
     notifications_enabled   1
     }

 define service {
     use generic-service
     host_name Backups
     service_description Onsite Backups
     check_command check_backup!onsite!10080!20160 # Warn after 1 weeks. Critical after 2 weeks
     notifications_enabled   1
     }

 define service {
     use generic-service
     host_name Backups
     service_description Offsite Backups
     check_command check_backup!offsite!30240!60480 # Warn after 3 weeks. Critical after 6 weeks
     notifications_enabled   1
     }

Break down

check_command check_backup!onsite!10080!20160 # Warn after 1 weeks. Critical after 2 weeks

Where:
onsite = file to check
10080 = warn_level
20160 = crit_level

in minutes.

onsite file contence

Success - Tue 28 Nov 15:38:34 CET 2023

There is one file for each device backed up and for the BTRFS snaps