2020-09-26 16:19:37 +02:00
|
|
|
#!/bin/bash
|
|
|
|
|
# Backup rotation
|
2021-09-11 11:07:53 +02:00
|
|
|
# Usage example: backup_rotation.sh /var/lib/postgresql/BACKUP-SCODOC
|
2020-09-26 16:19:37 +02:00
|
|
|
#
|
|
|
|
|
# This script is designed to run each hour
|
|
|
|
|
#
|
|
|
|
|
# E. Viennet 2014, loosely inspired by Julius Zaromskis,
|
|
|
|
|
# http://nicaw.wordpress.com/2013/04/18/bash-backup-rotation-script/
|
|
|
|
|
|
|
|
|
|
# Storage folder where to move backup files
|
|
|
|
|
# Must contain backup.monthly backup.weekly backup.daily backup.hourly folders
|
|
|
|
|
storage="$1"
|
|
|
|
|
|
|
|
|
|
NB_HOURLY=48 # nb de sauvegardes horaires a conserver (1 par heure)
|
|
|
|
|
NB_DAILY=40 # nb de sauvegardes quotidiennes a conserver
|
|
|
|
|
NB_WEEKLY=30 # nombre de sauvegardes hebdomadaires a conserver
|
|
|
|
|
NB_MONTHLY=200 # nombre de sauvegardes mensuelles a conserver
|
|
|
|
|
|
|
|
|
|
# Work in backup directory:
|
|
|
|
|
cd $storage
|
|
|
|
|
|
|
|
|
|
# Source folder where files are backed
|
|
|
|
|
source="incoming"
|
|
|
|
|
|
|
|
|
|
# Destination file names
|
|
|
|
|
date_daily=$(date -u +"%Y-%m-%d")
|
|
|
|
|
date_hourly=$(date -u +"%Y-%m-%dT%H:%M")
|
|
|
|
|
|
|
|
|
|
# Get current month and week day number
|
|
|
|
|
month_day=$(date -u +"%d")
|
|
|
|
|
week_day=$(date -u +"%u")
|
|
|
|
|
hour=$(date -u +"%H")
|
|
|
|
|
|
|
|
|
|
# Optional check if source files exist. Email if failed.
|
|
|
|
|
#if [ ! -f $source/archive.tgz ]; then
|
|
|
|
|
#ls -l $source/ | mail your@email.com -s "[backup script] Daily backup failed! Please check for missing files."
|
|
|
|
|
#fi
|
|
|
|
|
|
|
|
|
|
# We take files from source folder and move them to
|
|
|
|
|
# the appropriate destination folder:
|
|
|
|
|
|
|
|
|
|
# On first month day do (once)
|
|
|
|
|
if [ "$month_day" -eq 1 ] && [ ! -e backup.monthly/$date_daily ]; then
|
|
|
|
|
destination=backup.monthly/$date_daily
|
|
|
|
|
else
|
|
|
|
|
# On sunday do (once)
|
|
|
|
|
if [ "$week_day" -eq 7 ] && [ ! -e backup.weekly/$date_daily ]; then
|
|
|
|
|
destination=backup.weekly/$date_daily
|
|
|
|
|
else
|
|
|
|
|
if [ "$hour" -eq 0 ] ; then
|
|
|
|
|
# On any regular day just after midnight do
|
|
|
|
|
destination=backup.daily/$date_daily
|
|
|
|
|
else
|
|
|
|
|
# Each hour do:
|
|
|
|
|
destination=backup.hourly/$date_hourly
|
|
|
|
|
fi
|
|
|
|
|
fi
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
# Move the files
|
|
|
|
|
mkdir $destination
|
|
|
|
|
mv $source/* $destination
|
|
|
|
|
|
|
|
|
|
# hourly - keep NB_HOURLY
|
|
|
|
|
m=$(($NB_HOURLY * 60))
|
|
|
|
|
find ./backup.hourly -maxdepth 1 -mmin +"$m" -type d -exec /bin/rm -r {} \;
|
|
|
|
|
|
|
|
|
|
# daily - keep for NB_DAILY days
|
|
|
|
|
find ./backup.daily/ -maxdepth 1 -mtime +"$NB_DAILY" -type d -exec /bin/rm -r {} \;
|
|
|
|
|
|
|
|
|
|
# weekly - keep for NB_WEEKLY days
|
|
|
|
|
d=$(($NB_WEEKLY * 7))
|
|
|
|
|
find ./backup.weekly/ -maxdepth 1 -mtime +"$d" -type d -exec /bin/rm -r {} \;
|
|
|
|
|
|
|
|
|
|
# monthly - keep for NB_MONTHLY days (approx: 30 days/month)
|
|
|
|
|
d=$(($NB_MONTHLY * 30))
|
|
|
|
|
find ./backup.monthly/ -maxdepth 1 -mtime +"$d" -type d -exec /bin/rm -r {} \;
|
