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#!/bin/sh
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# File: send-mail-ip-address.sh
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# Startdate: 2021-05-17 08:59
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#
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# Purpose: send email message from newly build VM to myself with new hostname and IP address
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# Usage:
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# send-mail-ip-address.sh
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# Dependencies:
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# bgscripts-core (>=1.5.0)
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test -z "${ADDRESS}" && export ADDRESS="${1}" # use ADDRESS environment variable or else use first parameter
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test -z "${ADDRESS}" && export ADDRESS=bgstack15@gmail.com
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test -z "${SERVER}" && export SERVER="$( hostname --fqdn )"
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# Ensure PATH contains /sbin and /usr/sbin for ip and sendmail (called by send)
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echo "${PATH}" | grep -qE '^\/usr\/sbin|:\/usr\/sbin' || export PATH="${PATH}:/usr/sbin"
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echo "${PATH}" | grep -qE '^\/sbin|:\/sbin' || export PATH="${PATH}:/sbin"
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# Modified and improved from bgscripts framework.sh 2021-02-16a
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thisip="$( ip -4 -o a s | awk '$1 !~ /^lo$/ && $2 !~ /^lo$/ && ($1 ~ /^e/ || $2 ~/^e/) {print $3,$4}' | awk -F'/' '{print $1}' | tr -dc '[0-9\.]' )"
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# Send message
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{
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echo "${SERVER} has IP address ${thisip}."
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echo "system finished build at $( TZ=UTC date "+%FT%TZ" )"
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# leave cat INFILE unquoted in case it is inaccessible
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} | send -f "root@${SERVER}" -h -s "${SERVER} is ${thisip}" "${ADDRESS}"
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