#!rsc
# RouterOS script: certificate-renew-issued
# Copyright (c) 2019-2020 Christian Hesse <mail@eworm.de>
#
# renew locally issued certificates

:foreach Cert in=[ / certificate find where issued expires-after<3w ] do={
  :local CertVal [ / certificate get $Cert ];
  / certificate issued-revoke $Cert;
  / certificate set name=($CertVal->"name" . "-revoked-" . [ / system clock get date ]) $Cert;
  / certificate add name=($CertVal->"name") common-name=($CertVal->"common-name") \
      key-usage=($CertVal->"key-usage") subject-alt-name=($CertVal->"subject-alt-name");
  / certificate sign ($CertVal->"name") ca=($CertVal->"ca");
}