88 lines
2.6 KiB
Bash
Executable File
88 lines
2.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2024 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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LOAD=90
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TTL=10
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GRACE=6
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usage() {
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echo "usage: ${0##*/} [-l load (90)] [-t ttl (10)] [-g grace (6)] [-d]" 1>&2
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exit
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}
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while getopts l:t:g:dh arg; do
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case ${arg} in
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l) LOAD=${OPTARG};;
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t) TTL=${OPTARG};;
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g) GRACE=${OPTARG};;
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d) DEBUG=1;;
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h) usage;;
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*) usage;;
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esac
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done
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HOSTNAME=$(hostname)
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TIMESTAMP=$(date +%s)
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OUT=$(ps -uU _vmd | awk -v var="${LOAD}" '$12 !~ /\// && $3 > var {print $12}')
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if [ -z "${OUT}" ]; then
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if [ -n "${DEBUG}" ]; then echo "No VM over the threshold overload"; fi
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rm -rf /tmp/vm*
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exit 0;
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fi
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for VM in ${OUT}; do
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if [ -n "${DEBUG}" ]; then echo -n "${VM}"; fi
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if [ ! -f /home/mischa/vms/${VM}.exclude ]; then
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if [ -f /tmp/${VM} ]; then
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FIRSTSEEN=$(awk 'NR==1' /tmp/${VM})
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LASTSEEN=$(awk 'NR==2' /tmp/${VM})
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if [ -n "${DEBUG}" ]; then
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echo -n " - ${FIRSTSEEN}"
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echo -n ", $((${TIMESTAMP} - ${FIRSTSEEN}))"
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echo -n ", ${LASTSEEN}"
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echo ", $((${TIMESTAMP} - ${LASTSEEN}))"
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fi
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if [[ $(( ${TIMESTAMP} - ${LASTSEEN} )) -gt $(( 60 * ${TTL} )) ]]; then
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echo ${FIRSTSEEN} > /tmp/${VM}
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echo ${TIMESTAMP} >> /tmp/${VM}
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fi
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if [[ $(( ${TIMESTAMP} - ${FIRSTSEEN} )) -gt $(( 60 * 60 * ${GRACE} )) ]]; then
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if [[ $(( ${TIMESTAMP} - ${LASTSEEN} )) -gt $(( 60 * ${TTL} )) ]]; then
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/home/mischa/bin/notify.pl cpu ${VM}
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echo "${VM} over ${LOAD}% CPU load for ${GRACE} hours" | mail -s "${HOSTNAME} - ${VM} over ${LOAD}% CPU load for ${GRACE} hours" -r root@obsda.ms cpu@obsda.ms
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rm -rf /tmp/${VM}
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fi
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fi
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else
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if [ -n "${DEBUG}" ]; then echo " - firstseen"; fi
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echo ${TIMESTAMP} > /tmp/${VM}
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echo ${TIMESTAMP} >> /tmp/${VM}
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fi
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fi
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done
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if ls /tmp/vm* 1> /dev/null 2>&1; then
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SEEN=$(ls -1 /tmp/vm* | awk -F'/' '{print $3}')
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for s in ${SEEN[@]}; do
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if [[ "${OUT[*]}" != *"${s}"* ]]; then
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if [ -n "${DEBUG}" ]; then echo "${s} - remove from tracking list"; fi
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rm -rf /tmp/${s}
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fi
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done
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fi
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