renew_cert/renew_cert_dns.sh

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#!/bin/sh
# Script de renouvellement de certificat buypass go ssl
# Copyright 2021 Alarig Le Lay <alarig@swordarmor.fr>
# Released under the 2-clause BSD license.
# Bootstrap du bordel :
# Création de la clé dauthentification au service ACME
# openssl genrsa -out account.key 4096
# Création du CSR et de la clé privée
# openssl req -nodes -newkey rsa:4096 -sha256 -keyout \
# bulbizarre.swordarmor.fr.key -out bulbizarre.swordarmor.fr.csr
# Génératon du cerificat
# ./acme_tiny.py --account-key ../account.key --csr \
# ../bulbizarre.swordarmor.fr.csr --acme-dir /var/www/le-challenges/ > \
# ../signed.crt
service="$1"
domain="$2"
base_dir='/etc/ssl'
certok=0
_write_err () {
>&2 printf "$1"
}
if [ $# != 2 ]; then
_write_err "Paramètre manquant\n"
_write_err "$0 \$service \$domain\n"
exit 1
fi
# 2592000 secondes correspondent à 30 jour
openssl x509 -checkend 2678400 -noout -in $base_dir/$service/${domain}.crt
if [ $? = 0 ]; then
printf "$base_dir/$service/${domain}.crt est valide pour plus dun "
printf "mois\n"
exit 1
fi
if [ ! -f "$base_dir/$service/${domain}.csr" ]; then
_write_err ".csr introuvable : $base_dir/$service/${domain}.csr\n"
exit 1
fi
# sauvegarde du dossier actuel
cp -r "$base_dir/$service" "$base_dir/$service-$(date +%F)"
if [ $? != 0 ]; then
_write_err "Erreur de sauvegarde du dossier $base_dir/$service\n"
exit 1
fi
mv $base_dir/$service/$domain.crt $base_dir/$service/$domain.crt.bak-$(date +%F)
mv $base_dir/$service/$domain.chained.crt $base_dir/$service/$domain.chained.crt-$(date +%F)
mv $base_dir/$service/$domain.intermediate.crt $base_dir/$service/$domain.intermediate.crt-$(date +%F)
certbot certonly \
--dns-rfc2136 \
--dns-rfc2136-credentials /usr/local/src/renew_cert/rfc2136.conf \
--dns-rfc2136-propagation-seconds 30 \
--csr /etc/ssl/$service/$domain.csr \
--cert-path /etc/ssl/$service/$domain.crt \
--chain-path /etc/ssl/$service/$domain.intermediate.crt
# on peut pas tester le code de retour, il est != 0 même quand ça marche…
mv 0000_chain.pem /etc/ssl/$service/$domain.chained.crt
if [ "${service}" = "inspircd" ]; then
kill -USR1 $(cat /run/inspircd/inspircd.pid)
else
rc-service $service reload
fi
if [ $? = 0 ]; then
rm -r "$base_dir/$service-$(date +%F)"
fi
exit 0
# bulbizarre ~ # openssl verify -CAfile /etc/ssl/lets-encrypt-x1-cross-signed.pem
# /etc/ssl/apache2/akilina.swordarmor.fr.crt
# /etc/ssl/apache2/akilina.swordarmor.fr.crt: CN = akilina.swordarmor.fr
# error 20 at 0 depth lookup:unable to get local issuer certificate
# bulbizarre ~ # echo $?
# 2
# bulbizarre ~ # openssl verify -CAfile /etc/ssl/lets-encrypt-x3-cross-signed.pem
# /etc/ssl/apache2/akilina.swordarmor.fr.crt
# /etc/ssl/apache2/akilina.swordarmor.fr.crt: OK
# bulbizarre ~ # echo $?
# 0