5.2.8.1. ON Core Backup
As a default configuration, all the ON Core servers have a backup script opennac_backup.sh, scheduled to run every day at 23:26.
Below, is the snippet of the cron configuration:
[root@opennac ~]# cat /etc/cron.d/opennac-backup
26 23 * * * root /usr/share/opennac/utils/backup/opennac_backup.sh > /dev/null 2>&1
As a default behavior, the generated backup tarballs are stored in /backup:
[root@opennac ~]# ls -l /backup/
-rw------- 1 root root 161149892 Feb 20 23:26 opennac-opennac.tpl-20180220_232601.tgz
-rw------- 1 root root 161098842 Feb 21 23:26 opennac-opennac.tpl-20180221_232601.tgz
-rw------- 1 root root 159619610 Feb 22 23:26 opennac-opennac.tpl-20180222_232601.tgz
-rw------- 1 root root 159843893 Feb 23 23:26 opennac-opennac.tpl-20180223_232601.tgz
-rw------- 1 root root 159917033 Feb 24 23:26 opennac-opennac.tpl-20180224_232601.tgz
-rw------- 1 root root 160047804 Feb 25 23:26 opennac-opennac.tpl-20180225_232601.tgz
-rw------- 1 root root 160150451 Feb 26 23:26 opennac-opennac.tpl-20180226_232601.tgz
The name is composed according to the following formula:
opennac-$fqdn_hostname-$year$month$day-$hour$minute$second.tgz
Each backups contains:
/etc/ directory
/usr/ directory
/var/ directory
MySQL database dump
5.2.8.1.1. Customize backup behavior
To customize the backup behavior, you can configure options in the /etc/cron.d/opennac-backup file. Below are the available options for the backup script:
[root@on-sta-qa ~]# /usr/share/opennac/utils/backup/opennac_backup.sh -h
Usage: /usr/share/opennac/utils/backup/opennac_backup.sh [options]
Backup openNAC files and database information.
Available options:
-r|--retention RETENTION_LOGS number of logs to retain
Default: 7
-s|--source-files SRC_FILES source files and folders to backup
(list elements separated by spaces
and all list inside quotes)
Default: "/etc /usr/share/opennac /var/lib/collectd"
-d|--destination-folder DST_FOLDER destination folder to store backup
Default: /backup
-f|--destination-file DST_FILENAME destination filename to store backup
(date and extension will be automatically added)
Default: opennac-on-sta-qa
-l|--log LOG backup log
Default: /var/log/opennac/backup.log
-t|--tmp-folder TMP_FOLDER temporary folder, for internal script usage
Default: /var/log/opennac/backup
-a|--avoid-db-dump avoid database dump
-h|--help display this help and exit
For example, if you want to configure the retention of backup logs to 2 days, you can modify the cron file as follows:
[root@on-sta-qa ~]# cat /etc/cron.d/opennac-backup
# opennac-backup
26 23 * * * root /usr/share/opennac/utils/backup/opennac_backup.sh -r 2 > /dev/null 2>&1
You can further customize the cron file by adding other options as needed.
Note
For operational purposes, the customer must copy it to a backup manager server.