Added an already running check

[zfs-nexenta/.git] / zfs-autosnap-wrapper

diff --git a/zfs-autosnap-wrapper b/zfs-autosnap-wrapper
index 58929766541fb40b569f213d165e321dc3b9d209..fc17c0872bc3e0c2c83efde7da266c235ee3e437 100755 (executable)
--- a/zfs-autosnap-wrapper
+++ b/zfs-autosnap-wrapper
@@ -4,24 +4,48 @@
 # Description: This script is a wrapper script that calls zfs-autosnap
 #              for each filesystem provided below.
 
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
 # Setup some default values
-autosnap="/usr/local/etc/bin/zfs-autosnap"
-logfile="/var/log/zfs-autosnap.log"
+logfile="$logdir/zfs-autosnap.log"
 numsnapshots=20
 maxagedays=365
+date=`date`
+mylockdir="/tmp/zfs-autosnap-all"
+current_hour=`date +"%H"`
+current_minute=`date +"%M"`
+current_day=`date +"%u"`
+
+# Make sure we aren't already running
+if ! mkdir "$mylockdir" >/dev/null 2>&1; then
+  echo "$date Another $0 process is already running" >> $logfile
+  exit 1
+fi
 
 # Auto snapshot every zfs filesystem on the system specified below
 date >> $logfile
 
 # Special filesystems
-$autosnap storage /storage $numsnapshots 15
-$autosnap tank/usr/videos /usr/videos $numsnapshots 15
+# ex: zfs-autosnap storage /storage $numsnapshots 15
+# ex: zfs-autosnap tank/usr/videos /usr/videos $numsnapshots 15
 
 # Normal filesystems
-$autosnap tank / $numsnapshots $maxagedays 
-$autosnap tank/backup /backup $numsnapshots $maxagedays
-$autosnap tank/usr /usr $numsnapshots $maxagedays
-$autosnap tank/usr/home /usr/home $numsnapshots $maxagedays
-$autosnap tank/usr/local /usr/local $numsnapshots $maxagedays
-$autosnap tank/usr/local/etc /usr/local/etc $numsnapshots $maxagedays
+# ex: zfs-autosnap tank / $numsnapshots $maxagedays 
+# ex: zfs-autosnap tank/home /home $numsnapshots $maxagedays
+
+# Daily filesystems (only perform these at midnight)
+# midnight = true if (midnight < current time < midnight+5 min)
+if [[ $current_hour == "00" && $current_minute -lt 5 ]]; then
+   echo "Performing Daily snapshots" >> $logfile
+fi
+
+# Weekly filesystems (only perform these on Sunday at midnight)
+# midnight = true if (midnight < current time < midnight+5 min)
+if [[ $current_day == "7" && $current_hour == "00" && $current_minute -lt 5 ]]; then
+  echo "Performing Weekly snapshots" >> $logfile
+fi
 
+rm -rf "$mylockdir"