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指定したドメイン名の証明書期限(notAfter)までの残日数を返すだけのやつ
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#!/bin/bash | |
set -ue | |
targets=("example.com") | |
targets_metric_name=("ex") | |
now=$(date "+%s") | |
function remaining() { | |
local expiresAt=$(echo | openssl s_client -connect $1:443 2>&1 | openssl x509 -dates -noout|grep notAfter|sed -e 's/notAfter=//g'| xargs -i date -d "{}" "+%s") | |
if [ $2 -gt $expiresAt ]; then | |
echo -1 | |
else | |
local diff=$(($expiresAt - $2)) | |
local day=$((24 * 60 * 60)) | |
echo $(($diff / $day)) | |
fi | |
} | |
for ((i=0; i < ${#targets[@]}; ++i)); do | |
metric=$(remaining ${targets[$i]} $now) | |
echo -e "ssl_expires_in.${targets_metric_name[$i]}\t$metric\t$now" | |
done |
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