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Snigelson/btrfsrotate.cron

Created December 26, 2013 12:25
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Cron job handler for btrfs rotate
Raw
btrfsrotate.cron
#!/bin/bash
source /etc/btrfsrotate.cron
set -e
set -u
function die {
echo "Error: $2" >&2
exit $1
}
[ -z ${1-} ] && die 1 "Usage: $0 <periodicity>"
type=$1
list=`eval "echo \\$${type}"`
list=`eval "echo ${list}"`
for volume in $list
do
volname=${volume%%,*}
keep=${volume##*,}
/usr/local/sbin/btrfsrotate -b "$volname" -d "`dirname $volname`" -c "$keep" -t "$type" -r -s "$suffix" ||:
done
Raw
btrfsrotate.example
# This file is used by btrfsrotate.cron to determinne what subvolumes
# to rotate.
#
# name specifies which script is executed. For instance, if
# btrfsrotate.cron.weekly is run, volumes are read from weekly.
#
# volumes are specified as <mount point>,<num to keep> and are
# separated by spaces. For example:
#
# weekly="/mnt/root/home,6 /mnt/root/volume,4"
#
# This file is sourced, so scripting is possible.
# Specify what to do with which subvolume. The variable name
# corresponds to the parameter to btrfsrotate.cron.
hourly=""
daily=""
weekly=/mnt/root/{root,home,db,ftp,home,lxc,puppet,www},6
monthly=/mnt/root/{root,home,db,ftp,home,lxc,puppet,www},12
yearly=""
# Specify suffix for snapshots. Preferrably date or such.
suffix=`/bin/date +%y%m%d-%H%M`
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