グローバルIP変化監視。変化したらprowlに通知。

check_global_ip.sh

#!/bin/sh

IP_ADDR_FILE="/var/lib/jenkins/current_global_ip"

CURRENT_IP_ADDR=`curl --max-time 10 -s http://inet-ip.info/`
CURL_STATUS=$?

if [ ${CURL_STATUS} -ne 0 ]; then
   echo "error HTTP response / connect NG"
   exit 1
fi

if [ `echo ${CURRENT_IP_ADDR} | wc | awk '{print $3}'` -gt 17 ]; then
   echo "error request / connect OK"
   exit 2
fi

PREV_IP_ADDRESS=`cat ${IP_ADDR_FILE}`

PROWL_URL="https://api.prowlapp.com/publicapi/add"
PROWL_API_KEY="##########"
PROWL_PARAM="priority=2&application=Network&event=portal"
if [ "x${PREV_IP_ADDRESS}" != "x${CURRENT_IP_ADDR}" ]; then
   echo "ip address change : ${PREV_IP_ADDRESS} -> ${CURRENT_IP_ADDR}"
   echo "${CURRENT_IP_ADDR}" > ${IP_ADDR_FILE}
   PROWL_MSG="ip%20address%20change%20:%20${PREV_IP_ADDRESS}%20-%3E%20${CURRENT_IP_ADDR}"
   curl "${PROWL_URL}?apikey=${PROWL_API_KEY}&${PROWL_PARAM}&description=${PROWL_MSG}"
   exit 0
fi

echo "ip address not change : ${CURRENT_IP_ADDR}"
exit 0