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contrib-munin/plugins/backup/fresh-backups
Olivier Mehani 07fb93c2a4 [fresh_backup] Add missing reference to backup-manager
Signed-off-by: Olivier Mehani <shtrom@ssji.net>
2016-11-06 13:18:56 +11:00

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#!/bin/sh
: << =cut
=head1 NAME
fresh-backups - Plugin to monitor the freshness of backup files
=head1 APPLICABLE SYSTEMS
Any system with some automated backup creating or updating archive files.
This works well with backup-manager.
=head1 CONFIGURATION
The following example checks all tar.bz2 files in /path/to/your/backups/, and
counts all those that are less than 2 days old, and there should be 4 separate
daily archives.
[fresh-backups]
user root
env.backup_dir /path/to/your/backups/
env.lifetime 2
env.archive_pattern *.tar.bz2
env.backup_number 4
This will also set the warning and critical values for this plugin to 2*4 and
4, respectively, meaning that if the number of fresh files goes below those
limits, the relevant notifications will be triggerred.
An example configuration snippet for backup-manager [0] follows.
export BM_REPOSITORY_ROOT="/path/to/your/backups"
export BM_TARBALL_FILETYPE="tar.bz2"
export BM_TARBALL_DIRECTORIES="/etc /home /srv /data"
[0] https://github.com/sukria/Backup-Manager
=head1 AUTHOR
Olivier Mehani <shtrom+munin@ssji.net>
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=manual
=cut
# Configuration directives, edit before first use.
BACKUP_DIR=${backup_dir:-/data/backup}
ARCHIVE_PATTERN="${archive_pattern:-*.tar.bz2}"
# How old backups should be considered as non-yound anymore in [days].
LIFETIME=${lifetime:-2}
# Critical states will be issued when the number of fresh backups archives is below `backup_number`,
# and warnings below `backup_number*lifetime`
CRIT=${backup_number:-1}
WARN=$((CRIT*LIFETIME))
# The situation is critical if there are no young files, the backup is down.
case $1 in
config)
cat << EOF
graph_title Fresh (<=${LIFETIME}d) backups archives in ${BACKUP_DIR}
graph_vlabel number
graph_args -l 0
graph_category system
freshcount.label number
freshcount.critical ${CRIT}:
freshcount.warning ${WARN}:
EOF
exit 0;;
esac
printf "freshcount.value "
find "${BACKUP_DIR}" -name "${ARCHIVE_PATTERN}" -a -mtime "-${LIFETIME}" | wc -l
printf "freshcount.extinfo "
du -sh "${BACKUP_DIR}"