From 858232205dea7a1900dd38a146a6c2e054049c05 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@open-infrastructure.net>
Date: Thu, 7 Jul 2022 12:54:58 +0200
Subject: Reworking service-reload dehydrated hook.

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>
---
 dehydrated/share/hooks/exit_hook.service-reload | 100 +++++++++++++++++-------
 1 file changed, 73 insertions(+), 27 deletions(-)

diff --git a/dehydrated/share/hooks/exit_hook.service-reload b/dehydrated/share/hooks/exit_hook.service-reload
index cec5583..cf297ab 100755
--- a/dehydrated/share/hooks/exit_hook.service-reload
+++ b/dehydrated/share/hooks/exit_hook.service-reload
@@ -21,45 +21,91 @@
 
 set -e
 
-SERVICES="apache2 chrony haproxy knot postgresql redis-server"
+Run_apache2 ()
+{
+	if grep -Eqrs '^ *SSLCertificateFile' /etc/apache2/sites-enabled
+	then
+		service apache2 reload
+	fi
+}
 
-echo " + Reloading services..."
+Run_chrony ()
+{
+	if grep -Eqrs '^ *ntsservercert' /etc/chrony/chrony.conf /etc/chrony/conf.d/*
+	then
+		service chrony restart
+	fi
+}
 
-for SERVICE in ${SERVICES}
-do
-	if service "${SERVICE}" status > /dev/null 2>&1
+Run_haproxy ()
+{
+	if grep 'ssl crt' /etc/haproxy/haproxy.cfg | grep -qsv '^#'
 	then
-		echo -n "   + ${SERVICE}:"
+		service haproxy reload
+	fi
+}
 
-		service "${SERVICE}" reload || service "${SERVICE}" restart
+Run_knot_resolver ()
+{
+	if grep -Eqrs '^ *net.tls' /etc/knot-resolver/*
+	then
+		INSTANCES="$(systemctl | grep -c 'kresd@*.service')"
 
-		echo " done."
+		if [ "${INSTANCES}" -gt 0 ]
+		then
+			for INSTANCE in $(seq 1 "${INSTANCES}")
+			do
+				service kresd@"${INSTANCE}" restart
+			done
+		fi
 	fi
-done
+}
 
-if grep -r -qs '^net.tls' /etc/knot-resolver/* && service kresd@1 status > /dev/null 2>&1
-then
-	NUMBER="$(systemctl | grep -c 'kresd@[0-9].service')"
+Run_postfix ()
+{
+	if grep -Eqrs '^ *smtpd_tls' /etc/postfix/main.cf
+	then
+		service postfix restart
+	fi
+}
 
-	if [ "${NUMBER}" -gt 0 ]
+Run_postgresql ()
+{
+	if grep -Eqrs '^ *ssl_cert_file' /etc/postgresql/*
 	then
-		echo -n "   + knot-resolver:"
+		service postgresql reload
+	fi
+}
 
-		for NUMBER in $(seq 1 "${NUMBER}")
-		do
-			echo -n " #${NUMBER}"
-			service kresd@"${NUMBER}" restart
-		done
+Run_redis_sentinel ()
+{
+	if grep -Eqrs '^ *tls-cert-file' /etc/redis/sentinel.conf
+	then
+		service redis-sentinel restart
+	fi
+}
 
-		echo " done."
+Run_redis_server ()
+{
+	if grep -Eqrs '^ *tls-cert-file' /etc/redis/redis.conf
+	then
+		service redis-server restart
 	fi
-fi
+}
 
-if grep -r -qs '^smtpd_tls' /etc/postfix/main.cf/* && service postfix status > /dev/null 2>&1
-then
-	echo -n "   + postfix:"
+echo " + Reloading services:"
+
+SERVICES="apache2 chrony haproxy knot-resolver postfix postgresql redis-sentinel redis-server"
+
+for SERVICE in ${SERVICES}
+do
+	if service "${SERVICE}" status > /dev/null 2>&1
+	then
+		echo -n "   + ${SERVICE}:"
 
-	service postfix restart
+		RELOAD="Run_$(echo "${SERVICE}" | sed -e 's|-|_|g')"
+		${RELOAD}
 
-	echo " done."
-fi
+		echo " done."
+	fi
+done
-- 
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