instance-shutdown-initd

#! /bin/bash

#
# instance-shutdown     Run commands at system shutdown.
#
# chkconfig: 01 95 05
#
### BEGIN INIT INFO
# Provides: instance-shutdown
# Required-Start: $network $syslog
# Required-Stop:
# Default-Start:
# Default-Stop: 0
# Short-Description: instance shutdown
# Description: Run commands at system shutdown.
### END INIT INFO
#

case "$1" in
  start)
    touch /var/lock/subsys/instance-shutdown
    exit 0
    ;;

  stop)

    ##
    ## Example of moving a system to the "stopped instances" tag upon system shut down.
    ##
    ## Replace the following with any System Context Api call upon shutdown.
    ## System Context Api Docs: https://github.com/TheJumpCloud/SystemContextAPI
    ##
    conf="`cat /opt/jc/jcagent.conf`"
    regex="systemKey\":\"(\w+)\""

    if [[ $conf =~ $regex ]] ; then
      systemKey="${BASH_REMATCH[1]}"
    fi

    now=`date -u "+%a, %d %h %Y %H:%M:%S GMT"`;


    signstr="PUT /api/systems/${systemKey} HTTP/1.1\ndate: ${now}"
    signature=`printf "$signstr" | openssl dgst -sha256 -sign /opt/jc/client.key | openssl enc -e -a | tr -d '\n'` ;

    tmpD=`date +%s`

    curl -iq \
      -d "{ \"tags\" : [\"stopped servers\"],  \"displayName\" : \"stopped-${tmpD}\"}" \
      -X "PUT" \
      -H "Content-Type: application/json" \
      -H "Accept: application/json" \
      -H "Date: ${now}" \
      -H "Authorization: Signature keyId=\"system/${systemKey}\",headers=\"request-line date\",algorithm=\"rsa-sha256\",signature=\"${signature}\"" \
      --url https://console.jumpcloud.com/api/systems/${systemKey}

    ;;

  *)
    exit 0
    ;;

esac