#!/bin/bash

# Simple RRD setup
# Netowrk traffic in bytes/sec
# Disk reads/writes in bytes/sec
# Load average as reported by /proc/loadavg
# Needs: sysstat iostat

CONFIGDIR=$(pwd)
sed "3i . ${CONFIGDIR}/rrd_config" update_graphs.sh > update_graphs.sh

. ${CONFIGDIR}/rrd_config

if [ ! -d "$RRDDIR" ]; then
	mkdir -p $RRDDIR
fi 

cd $RRDDIR

# Create RRDs for network interfaces
for i in "${INTERFACES[@]}"
do
	if [ ! -f ${i}_day.rrd ]; then
		$RRDTOOL create ${i}_day.rrd \
		--step 15 \
		DS:RXBytes:DERIVE:240:0:1000000000000000 \
		DS:TXBytes:DERIVE:240:0:1000000000000000 \
		RRA:AVERAGE:0.5:1:576 \
		RRA:AVERAGE:0.5:6:672 \
		RRA:AVERAGE:0.5:24:732 \
		RRA:AVERAGE:0.5:144:1460
	fi
done

# Create RRDs for disks
for i in "${DISKS[@]}"
do
	if [ ! -f {i}.rrd ]; then
		$RRDTOOL create ${i}.rrd \
		--step 15 \
		DS:reads:DERIVE:30:0:1000000000000000 \
		DS:writes:DERIVE:30:0:1000000000000000 \
		RRA:AVERAGE:0.5:1:576 \
		RRA:AVERAGE:0.5:6:672 \
		RRA:AVERAGE:0.5:24:732 \
		RRA:AVERAGE:0.5:144:1460
	fi
done

# Create load average RRD
if [ ! -f loadavg.rrd ]; then
	$RRDTOOL create loadavg.rrd \
	--step 15 \
	DS:one:GAUGE:30:0:100 \
	DS:five:GAUGE:30:0:100 \
	DS:fifteen:GAUGE:30:0:100 \
	RRA:AVERAGE:0.5:1:576 \
	RRA:AVERAGE:0.5:6:672 \
	RRA:AVERAGE:0.5:24:732 \
	RRA:AVERAGE:0.5:144:1460
fi