HP DeskJet 2600 letsencrypt auto renewal script

updatePrinter.sh

#!/usr/bin/env bash

IP=192.168.1.123
PFX=certificate.pfx
DOMAIN=hp2600.example.com
PASS=$(cat /proc/sys/kernel/random/uuid)

openssl pkcs12 -export -out ${PFX} -inkey /etc/letsencrypt/live/${DOMAIN}/privkey.pem -in /etc/letsencrypt/live/${DOMAIN}/cert.pem -passout pass:"${PASS}"

curl --silent --insecure "https://${IP}/Security/DeviceCertificates/NewCertWithPassword/Upload?fixed_response=true" --form certificate=@${PFX} --form password="${PASS}" > last-result.log

rm ${PFX}