61 lines
2.1 KiB
Bash
Executable File
61 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2019-2021 Mischa Peters <mischa @ openbsd.amsterdam>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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test -n "$1" || exit 1
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HOST="$1"
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COMMUNITY="public"
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RRDFILES="/home/mischa/rrd"
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IMAGES="/var/www/rrdtool/obsda.ms"
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WATERMARK="OpenBSD Amsterdam - https://obsda.ms"
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RRDTOOL="/usr/local/bin/rrdtool"
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CPUINFO="/tmp/${HOST}-cpu.txt"
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UPTIME=$(cat /tmp/${HOST}-uptime.txt)
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VERSION=$(cat /tmp/${HOST}-version.txt)
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NOW=$(date "+%Y-%m-%d %H:%M:%S %Z" | sed 's/:/\\:/g')
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if ! test -f "${RRDFILES}/${HOST}-cpu.rrd"
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then
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echo "Creating ${RRDFILES}/${HOST}-cpu.rrd"
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${RRDTOOL} create ${RRDFILES}/${HOST}-cpu.rrd \
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--step 300 \
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DS:ds0:GAUGE:600:U:U \
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RRA:MAX:0.5:1:20000
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fi
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snmp walk -c ${COMMUNITY} ${HOST} hrProcessorLoad | awk '{print $4}' > ${CPUINFO}
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CORES=$(grep -cv "^0$" ${CPUINFO})
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CPU_LOAD_SUM=$(awk '{sum += $1} END {print sum}' ${CPUINFO})
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CPU_LOAD=$(echo "scale=2; ${CPU_LOAD_SUM}/${CORES}" | bc -l)
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${RRDTOOL} update ${RRDFILES}/${HOST}-cpu.rrd N:${CPU_LOAD}
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${RRDTOOL} graph ${IMAGES}/${HOST}-cpu.png \
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--start -43200 \
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--title "${HOST} - ${VERSION} - CPU" \
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--vertical-label "% CPU Used" \
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--watermark "${WATERMARK}" \
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--color BACK#ffffff \
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--border 0 \
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DEF:CPU=${RRDFILES}/${HOST}-cpu.rrd:ds0:AVERAGE \
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AREA:CPU#FFCC00 \
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LINE2:CPU#CC0033:"CPU" \
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GPRINT:CPU:MAX:"Max\:%2.2lf %s" \
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GPRINT:CPU:AVERAGE:"Average\:%2.2lf %s" \
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GPRINT:CPU:LAST:" Current\:%2.2lf %s\n" \
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COMMENT:"\\n" \
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COMMENT:" SUM CPU Load / Active Cores = % CPU Used\n" \
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COMMENT:" Up for ${UPTIME} at ${NOW}"
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