acme-client deploy.sh customize to HAProxy with SSL Termination and multiple domains

deploy.sh

#!/bin/sh

# This script copy fullchain.pem and privkey.pem to concatanate and make the CRT pem
# Separate domains by whitespace in DOMAIN_LIST
# CRT pem are stored at /usr/local/etc/haproxy/ssl for HAProxy use, change if you want a different dir
# ACMEDIR is the location for files produced by acme-client /usr/ports/security/acme-client/

set -e

TODAY=`date +"%Y%m%d"`

DOMAIN_LIST="example.com example1.com"
ACMEDIR="/usr/local/etc/ssl/acme"
TARGETDIR="/usr/local/etc/haproxy/ssl"

for domain in ${DOMAIN_LIST}; do
    echo "Deploy ${domain}"
    echo "Check if the certificate has changed"
    [ -f  "${TARGETDIR}/certs/${domain}.pem" ] && [ -z "`diff -rq ${ACMEDIR}/${domain}/fullchain.pem ${TARGETDIR}/certs/${domain}.pem`" ] && continue

    echo "Copying pem from Acme dir to Target dir"
    [ -d "${TARGETDIR}/priv" ] && echo "Priv dir exist" || mkdir -pm700 "${TARGETDIR}/priv"
    cp -L "${ACMEDIR}/private/${domain}/privkey.pem" "${TARGETDIR}/priv/${domain}.pem"
    [ -d "${TARGETDIR}/certs" ] && echo "Certs dir exist" || mkdir -pm755 "${TARGETDIR}/certs"
    cp -L "${ACMEDIR}/${domain}/fullchain.pem" "${TARGETDIR}/certs/${domain}.pem"

    chmod 400 "${TARGETDIR}/priv/${domain}.pem"
    chmod 644 "${TARGETDIR}/certs/${domain}.pem"

    echo "Concatanate fullchain.epm and privkey.pem - CRT file"
    # temporary backup dir
    echo "Backup ${domain}.pem if exist"
    [ -d "${TARGETDIR}/backup" ] || mkdir -pm700 "${TARGETDIR}/backup"

    [ -f  "${TARGETDIR}/${domain}.pem" ] && cp -L "${TARGETDIR}/${domain}.pem" "${TARGETDIR}/backup/${domain}.${TODAY}.pem"

    echo "Creating new CRT for ${domain}.pem"
    cat "${TARGETDIR}/priv/${domain}.pem" "${TARGETDIR}/certs/${domain}.pem" | tee "${TARGETDIR}/${domain}.pem"

    chmod 600 "${TARGETDIR}/${domain}.pem"
    
    echo "Restart/-load relevant services"
    #[[ "${domain}" = "example.com" ]] && service haproxy restart

done


echo "Restarting HAProxy"
service haproxy restart