bundles/zfs: import bundle from work repository

bundles/zfs/files/check_zfs_auto_snapshot

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+monitoring=/var/tmp/zfs-auto-snapshot.status
+crit_days=1
+
+uptime=$(cut -d. -f1 /proc/uptime)
+if [ "$uptime" -lt 3600 ]
+then
+    echo 'OK - The system has just booted'
+    exit 0
+fi
+
+now=$(date +%s)
+timestamp=$(cat "$monitoring")
+
+if [ -z "$timestamp" ]
+then
+    echo 'UNKNOWN - No status info found'
+    exit 3
+fi
+
+if [ "$timestamp" = 0 ]
+then
+    echo 'OK - Snapshots disabled'
+    exit 0
+elif [ $(( now - timestamp )) -gt $(( 60 * 60 * 24 * crit_days )) ]
+then
+    echo "CRITICAL - Status file indicates age greater than $crit_days day(s)"
+    exit 2
+else
+    echo 'OK'
+    exit 0
+fi