1 #!/bin/sh
2 #
3 # Copyright (c) 2019-2021 Mischa Peters <mischa @ openbsd.amsterdam>
4 #
5 # Permission to use, copy, modify, and distribute this software for any
6 # purpose with or without fee is hereby granted, provided that the above
7 # copyright notice and this permission notice appear in all copies.
8 #
9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 #
17 test -n "$1" || exit 1
18 HOST="$1"
19 COMMUNITY="public"
20 RRDFILES="/home/mischa/rrd"
21 IMAGES="/var/www/rrdtool/obsda.ms"
22 WATERMARK="OpenBSD Amsterdam - https://obsda.ms"
23 RRDTOOL="/usr/local/bin/rrdtool"
24 CPUINFO="/tmp/${HOST}-cores.txt"
25 UPTIME=$(cat /tmp/${HOST}-uptime.txt)
26 NOW=$(date "+%Y-%m-%d %H:%M:%S %Z" | sed 's/:/\\:/g')
27 
28 if ! test -f "${RRDFILES}/${HOST}-cores.rrd"
29 then
30 echo "Creating ${RRDFILES}/${HOST}-cores.rrd"
31 ${RRDTOOL} create ${RRDFILES}/${HOST}-cores.rrd \
32 	--step 300 \
33 	DS:ds0:GAUGE:600:U:U \
34 	DS:ds1:GAUGE:600:U:U \
35 	DS:ds2:GAUGE:600:U:U \
36 	DS:ds3:GAUGE:600:U:U \
37 	DS:ds4:GAUGE:600:U:U \
38 	DS:ds5:GAUGE:600:U:U \
39 	DS:ds6:GAUGE:600:U:U \
40 	DS:ds7:GAUGE:600:U:U \
41 	DS:ds8:GAUGE:600:U:U \
42 	DS:ds9:GAUGE:600:U:U \
43 	DS:ds10:GAUGE:600:U:U \
44 	DS:ds11:GAUGE:600:U:U \
45 	RRA:MAX:0.5:1:20000
46 fi
47 
48 snmp walk -c ${COMMUNITY} ${HOST} hrProcessorLoad | awk '{print $4}' > ${CPUINFO}
49 CORES=$(cat ${CPUINFO} | wc -l)
50 ACT_CORES=$((${CORES}/2))
51 CPU_LOAD=$(cat ${CPUINFO} | paste -s -d: - | cut -d: -f1-${ACT_CORES})
52 
53 ${RRDTOOL} update ${RRDFILES}/${HOST}-cores.rrd N:${CPU_LOAD}
54 
55 ${RRDTOOL} graph ${IMAGES}/${HOST}-cores.png \
56 	--start -432000 \
57 	--title "${HOST} - CPU" \
58 	--vertical-label "% CPU Used" \
59 	--watermark "${WATERMARK}" \
60 	DEF:CORE0=${RRDFILES}/${HOST}-cores.rrd:ds0:AVERAGE \
61 	DEF:CORE1=${RRDFILES}/${HOST}-cores.rrd:ds1:AVERAGE \
62 	DEF:CORE2=${RRDFILES}/${HOST}-cores.rrd:ds2:AVERAGE \
63 	DEF:CORE3=${RRDFILES}/${HOST}-cores.rrd:ds3:AVERAGE \
64 	DEF:CORE4=${RRDFILES}/${HOST}-cores.rrd:ds4:AVERAGE \
65 	DEF:CORE5=${RRDFILES}/${HOST}-cores.rrd:ds5:AVERAGE \
66 	DEF:CORE6=${RRDFILES}/${HOST}-cores.rrd:ds6:AVERAGE \
67 	DEF:CORE7=${RRDFILES}/${HOST}-cores.rrd:ds7:AVERAGE \
68 	DEF:CORE8=${RRDFILES}/${HOST}-cores.rrd:ds8:AVERAGE \
69 	DEF:CORE9=${RRDFILES}/${HOST}-cores.rrd:ds9:AVERAGE \
70 	DEF:CORE10=${RRDFILES}/${HOST}-cores.rrd:ds10:AVERAGE \
71 	DEF:CORE11=${RRDFILES}/${HOST}-cores.rrd:ds11:AVERAGE \
72 	LINE1:CORE0#FFFA00:"CORE0" \
73 	LINE1:CORE1#FFFA00:"CORE1" \
74 	LINE1:CORE2#FFF000:"CORE2" \
75 	LINE1:CORE3#FFE600:"CORE3" \
76 	LINE1:CORE4#FFDC00:"CORE4" \
77 	LINE1:CORE5#FFD200:"CORE5" \
78 	LINE1:CORE6#FFC800:"CORE6" \
79 	LINE1:CORE7#FFBE00:"CORE7" \
80 	LINE1:CORE8#FFB400:"CORE8" \
81 	LINE1:CORE9#FFAA00:"CORE9" \
82 	LINE1:CORE10#FFA000:"CORE10" \
83 	LINE1:CORE11#FF9600:"CORE11" \
84         COMMENT:"\\n" \
85         COMMENT:"  Up for ${UPTIME} at ${NOW}"