This script run letsencrypt renew and reload Nginx if there is any certificates renewed

letsencrypt-renew-nginx.sh

#!/bin/sh
# This script renews all the Let's Encrypt certificates with a validity < 30 days

RENEW_LOG=/var/log/letsencrypt/renew.log

if ! letsencrypt renew > $RENEW_LOG 2>&1 ; then
    echo Automated renewal failed:
    cat $RENEW_LOG
    exit 1
fi

cat $RENEW_LOG

# Restart nginx if there is any renewal attempted
if ! grep -Fq "No renewals were attempted" $RENEW_LOG ; then
    /usr/sbin/nginx -t && /usr/sbin/nginx -s reload
fi

Thanks bud!