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Auto renewal for Let's Encrypt Apache
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#!/bin/bash | |
#================================================================ | |
# Let's Encrypt renewal script for Apache on Ubuntu/Debian | |
# @author Erika Heidi<erika@do.co> | |
# Usage: ./le-renew.sh [base-domain-name] | |
# More info: http://do.co/1mbVihI | |
#================================================================ | |
domain=$1 | |
le_path='/opt/letsencrypt' | |
le_conf='/etc/letsencrypt' | |
exp_limit=30; | |
get_domain_list(){ | |
certdomain=$1 | |
config_file="$le_conf/renewal/$certdomain.conf" | |
if [ ! -f $config_file ] ; then | |
echo "[ERROR] The config file for the certificate $certdomain was not found." | |
exit 1; | |
fi | |
domains=$(grep --only-matching --perl-regex "(?<=domains \= ).*" "${config_file}") | |
last_char=$(echo "${domains}" | awk '{print substr($0,length,1)}') | |
if [ "${last_char}" = "," ]; then | |
domains=$(echo "${domains}" |awk '{print substr($0, 1, length-1)}') | |
fi | |
echo $domains; | |
} | |
if [ -z "$domain" ] ; then | |
echo "[ERROR] you must provide the domain name for the certificate renewal." | |
exit 1; | |
fi | |
cert_file="/etc/letsencrypt/live/$domain/fullchain.pem" | |
if [ ! -f $cert_file ]; then | |
echo "[ERROR] certificate file not found for domain $domain." | |
exit 1; | |
fi | |
exp=$(date -d "`openssl x509 -in $cert_file -text -noout|grep "Not After"|cut -c 25-`" +%s) | |
datenow=$(date -d "now" +%s) | |
days_exp=$((( $exp - $datenow ) / 86400 )) | |
echo "Checking expiration date for $domain..." | |
if [ "$days_exp" -gt "$exp_limit" ] ; then | |
echo "The certificate is up to date, no need for renewal ($days_exp days left)." | |
exit 0; | |
else | |
echo "The certificate for $domain is about to expire soon. Starting renewal request..." | |
domain_list=$( get_domain_list $domain ) | |
"$le_path"/letsencrypt-auto certonly --apache --renew-by-default --domains "${domain_list}" | |
echo "Restarting Apache..." | |
/usr/sbin/service apache2 reload | |
echo "Renewal process finished for domain $domain" | |
exit 0; | |
fi |
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Removed dependency on
bc
.