#!/bin/sh
#
# Record network device counters every 1 second and write in RRD or plain text.
#
# Copyright 2016 Ludovic Pouzenc <ludovic@pouzenc.fr>
#
# This file is part of if_rrd_fast.
#
# if_rrd_fast is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# if_rrd_fast is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with if_rrd_fast.  If not, see <http://www.gnu.org/licenses/>.
#

rsync -i stg.chd.sx:out.rrd /tmp/

statements="
DEF:ds0=/tmp/out.rrd:rx:AVERAGE
DEF:ds1=/tmp/out.rrd:tx:AVERAGE
DEF:ds2=/tmp/out.rrd:rx:MAX
DEF:ds3=/tmp/out.rrd:tx:MAX
CDEF:ds0b=ds0,8,*
CDEF:ds1b=ds1,8,*
CDEF:ds2b=ds2,8,*
CDEF:ds3b=ds3,8,*
CDEF:inbound=ds0b,-1,*
CDEF:outbound=ds1b,1,*
CDEF:in_peak=ds2b,-1,*
CDEF:out_peak=ds3b,1,*
VDEF:ds0max=ds0b,MAXIMUM
VDEF:ds0avg=ds0b,AVERAGE
VDEF:ds0pct=ds0b,95,PERCENT
VDEF:ds1max=ds1b,MAXIMUM
VDEF:ds1avg=ds1b,AVERAGE
VDEF:ds1pct=ds1b,95,PERCENT
VDEF:ds2max=ds2b,MAXIMUM
VDEF:ds3max=ds3b,MAXIMUM

LINE1:0#cccc00

COMMENT:             
COMMENT:Maximum    
COMMENT:Average    
COMMENT:95th%tile\l

AREA:inbound#0099ff:inbound  
GPRINT:ds0max:%6.2lf %Sbps
GPRINT:ds0avg:%6.2lf %Sbps
GPRINT:ds0pct:%6.2lf %Sbps\l

AREA:outbound#44ff44:outbound 
GPRINT:ds1max:%6.2lf %Sbps
GPRINT:ds1avg:%6.2lf %Sbps
GPRINT:ds1pct:%6.2lf %Sbps\l

LINE1:in_peak#0066bb:in_peak  
GPRINT:ds2max:%6.2lf %Sbps\l

LINE1:out_peak#00aa00:out_peak 
GPRINT:ds3max:%6.2lf %Sbps\l

"

if [ $# -eq 1 ]
then	ts=$1
else	#read -p "Last timestamp ? " ts
	[ -z "$ts" ] && ts=now
fi

for res in 1 60 300 3600
do
	rrdtool graph /var/www/lpo/out$res.png --imgformat PNG --width 1152 --height 720 \
		--start "end-$((1152*$res))s" --end $ts --lower-limit -190000000 --upper-limit 190000000 --rigid \
		--title "Network traffic" $statements
done