source: npl/monitoring/zabbix_conf/root/sbin/syn3-zabbix-send

#!/bin/bash
MONDIR=/var/lib/mon

#resolution of modify times is only 2 second on some filesystems, so prevent race conditions by touching it now and sleeping 2 seconds
touch $MONDIR/.zabbix-time
echo "Sleeping..."
sleep 2

#traveled back in time? (e.g. systemclock is adjusted)
if [ $MONDIR/.zabbix-time -ot $MONDIR/zabbix-latest ]; then
        #just resend everything
        rm $MONDIR/zabbix-latest
fi

UPDATES=""

#Let zabbix rediscover all syn-3 facilities if something changed:
if [ $MONDIR/alerts -nt $MONDIR/zabbix-latest ]; then
        echo "Rediscovering services..."
        cd $MONDIR/alerts
        JSON=
        for FACILITY in *; do
                #JOBTTL=`cat $JOBNAME`
                if [ "$JSON" != "" ]; then
                        JSON=$JSON', '
                fi
                JSON=$JSON'{ "{#FACILITY}": "'$FACILITY'" } '
        done
        MODIFY_TIME=`stat --format=%Y .`

        #low level discovery takes time, so send it and then wait a minute to process
        echo -en '- syn3.discovery { "data": [ '$JSON' ] }\n' | zabbix_sender -vv  -c /etc/zabbix/zabbix_agentd.conf -i - || exit 1
        echo "Waiting for zabbix to process discovery..."
        sleep 65
fi

#Find all facility states that have changed since last succesfull send
cd $MONDIR/alerts
for FACILITY in *; do
        #NOTE: msg-modifytime only changes if something actually changed, while state-modifytime always changes when syn3-state is called.
        if [ $FACILITY/msg -nt $MONDIR/zabbix-latest ]; then
                echo "Facility $FACILITY has changed since last send."
                STATE=`cat $FACILITY/state`
                MODIFY_TIME=`stat --format=%Y $FACILITY/state`
                MSG=`cat $FACILITY/msg | tr '\n' ' '`
                UPDATES="$UPDATES""- syn3.state[$FACILITY] $STATE, $MSG\n"
        fi
done


if [ "$UPDATES" != "" ]; then
        echo "Sending updates to zabbix:"
        echo -en "$UPDATES"
        if echo -en "$UPDATES" | zabbix_sender -vv  -c /etc/zabbix/zabbix_agentd.conf -i -; then
                #only if everything went ok, we update the timestamp of the latest-file. otherwise everything will be send again.
                mv $MONDIR/.zabbix-time $MONDIR/zabbix-latest
                echo "All updates sent ok."
        else
                echo "Error while sending, will try again later."
                exit 1
        fi
else
        echo "No changes found"
fi