55 lines
2.0 KiB
Bash
55 lines
2.0 KiB
Bash
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#!/bin/sh
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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test -n "$1" || exit 1
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HOST="$1"
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COMMUNITY="public"
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RRDFILES="/var/rrdtool"
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IMAGES="/var/www/htdocs"
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RRDTOOL="/usr/local/bin/rrdtool"
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CPUINFO="/tmp/${HOST}-cpu.txt"
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UPTIME=$(cat /tmp/${HOST}-uptime.txt)
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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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snmpctl snmp walk ${HOST} community ${COMMUNITY} oid hrProcessorLoad | cut -d= -f2 > ${CPUINFO}
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CORES=$(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 "${HOST} - CPU" \
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--vertical-label "% CPU Used" \
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--watermark "OpenBSD Amsterdam - https://obsda.ms" \
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DEF:CPU=${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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