1 files changed, 111 insertions, 0 deletions
diff --git a/sbin/itzks-puppetserver-autosign-new-host-certificates b/sbin/itzks-puppetserver-autosign-new-host-certificates
new file mode 100755
index 0000000..56dc9bf
--- /dev/null
+++ b/sbin/itzks-puppetserver-autosign-new-host-certificates
@@ -0,0 +1,111 @@
+#!/bin/bash
+
+# Copyright (C) 2022-2025 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+if [ $(id -u) -gt 0 ]; then
+	echo "ERROR: This script has to run as super-user root."
+	exit 1
+fi
+
+unset http_proxy
+unset https_proxy
+
+HOSTNAME="$(hostname -f)"
+PUPPET_SERVER="$(dig puppet.intern +short | head -n1)"
+
+if [ "${HOSTNAME}." != "${PUPPET_SERVER}" ]; then
+	exit 0
+fi
+
+if [[ -n "${1}" ]]; then
+	ONLY_PUPPET_CLIENT="${1}"
+fi
+
+source /etc/os-release
+
+if [ "${ID}" = "debian" ] && \
+   ([ "${VERSION_CODENAME}" == "stretch" ] || \
+    [ "${VERSION_CODENAME}" == "buster" ] || \
+    [ "${VERSION_CODENAME}" == "bullseye" ]); then
+
+	### Puppet 5.x et al. (until Debian 11)
+
+	# obtain list of puppet host certificate signing requests
+	NEW_PUPPET_SIGNING_REQUESTS="$(puppet cert list 2>/dev/null | awk '{ print $1 }' | sed 's/\"//g')"
+
+	# if any, iterate over them individually
+	if [ -n "${NEW_PUPPET_SIGNING_REQUESTS}" ]; then
+
+		echo "${NEW_PUPPET_SIGNING_REQUESTS}" | while read host_csr; do
+
+			# Only process one specific client...
+			if [ -n "${ONLY_PUPPET_CLIENT}" ] && [ "${ONLY_PUPPET_CLIENT}" != "${host_csr}" ]; then
+				continue
+			fi
+
+			# strip domain name
+			hostname_short="$(echo $host_csr | cut -d '.' -f1)"
+
+			## lookup host and see if it exists in LDAP:
+			ldapsystem=`ldapsearch -xLLL "(&(cn=${hostname_short})(|(objectClass=GOHard)(|(objectClass=ipHost))))" cn 2>/dev/null | perl -p00e 's/\r?\n //g' | grep -E '^cn:' | sed -e 's/^cn: //g'`
+
+			if [ -n "${ldapsystem}" ]; then
+
+				# yes, we should sign this host CSR
+				puppet cert sign "${host_csr}"
+
+			fi
+
+		done
+
+	fi
+
+else
+
+	# Puppet 7.x and newer... (Debian 12 and beyond)
+
+	# obtain list of puppet host certificate signing requests
+	NEW_PUPPET_SIGNING_REQUESTS="$(puppetserver ca list 2>/dev/null | awk '{ print $1 }' | sed 's/\"//g')"
+
+	# if any, iterate over them individually
+	if [ -n "${NEW_PUPPET_SIGNING_REQUESTS}" ]; then
+
+		echo "${NEW_PUPPET_SIGNING_REQUESTS}" | while read host_csr; do
+
+			# Only process one specific client...
+			if [ -n "${ONLY_PUPPET_CLIENT}" ] && [ "${ONLY_PUPPET_CLIENT}" != "${host_csr}" ]; then
+				continue
+			fi
+
+			# strip domain name
+			hostname_short="$(echo $host_csr | cut -d '.' -f1)"
+
+			## lookup host and see if it exists in LDAP:
+			ldapsystem=`ldapsearch -xLLL "(&(cn=${hostname_short})(|(objectClass=GOHard)(|(objectClass=ipHost))))" cn 2>/dev/null | perl -p00e 's/\r?\n //g' | grep -E '^cn:' | sed -e 's/^cn: //g'`
+
+			if [ -n "${ldapsystem}" ]; then
+
+				# yes, we should sign this host CSR
+				puppetserver ca sign --certname "${host_csr}"
+
+			fi
+
+		done
+
+	fi
+
+fi