renew-letencrypt-cron.bash

#!/usr/bin/env bash
# cron job to update letsencrypt cert from hyper_ch #letsencrypt irc.freenode.net
days=60                                 # After how many days should the cert be renewed?
domain="blog.urbanslug.com"             # Provide domain name
 
#*************************************************************************************************************#
#                                                                                                             #
#                                         HERE BE DRAGONS                                                     #
#                                                                                                             #
#*************************************************************************************************************#
 
fileTime=$(stat -c %Y "/etc/letsencrypt/live/${domain}/fullchain.pem")
curTime=$(date +%s)
diff=$(( (curTime - fileTime) / 86400 ))
 
if [[ ${diff} -ge ${days} ]]; then
 
    # Original Script
    cd /opt/letsencrypt/
    ./letsencrypt-auto --config /etc/letsencrypt/configs/${domain}.conf certonly
    if [[ $? -ne 0 ]]; then
        ERRORLOG=$(tail /var/log/letsencrypt/letsencrypt.log)
        echo -e "The Let's Encrypt cert has not been renewed! \n \n" \
                 $ERRORLOG
    else
        nginx -s reload
    fi
 
fi
 
exit 0