From: Ben Kelly <ben@benjii.net>
Date: Tue, 30 Aug 2016 08:54:49 +0000 (+0300)
Subject: keepalived: suppress reloads when config md5 has no change
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8483011a51c94439de53bfbe4c161aee41adc65f;p=feed%2Fpackages.git

keepalived: suppress reloads when config md5 has no change

Signed-off-by: Ben Kelly <ben@benjii.net>
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
---

diff --git a/net/keepalived/files/keepalived.init b/net/keepalived/files/keepalived.init
index 125c087217..6e850f02d8 100644
--- a/net/keepalived/files/keepalived.init
+++ b/net/keepalived/files/keepalived.init
@@ -366,9 +366,20 @@ service_running() {
 	pgrep -x /usr/sbin/keepalived &> /dev/null
 }
 
+conf_md5() {
+	echo "$(md5sum $KEEPALIVED_CONF | awk '{print $1}')"
+}
+
 reload_service() {
+	local cur_md5="$(conf_md5)"
 	running && {
 		process_config
+
+		# Return without performing the reload if config
+		# file md5sum has not changed
+		local new_md5="$(conf_md5)"
+		[ "$new_md5" == "$cur_md5" ] && return 0;
+
 		# SIGHUP is used by keepalived to do init.d reload
 		# Get the oldest process (assumption is that it's the parent process)
 		PID=$(pgrep -o /usr/sbin/keepalived)