diff --git a/heartbeat/Makefile.am b/heartbeat/Makefile.am
index 73ce6b6d0..e1fff0762 100644
--- a/heartbeat/Makefile.am
+++ b/heartbeat/Makefile.am
@@ -1,157 +1,158 @@
 # Makefile.am for OCF RAs
 #
 # Author: Sun Jing Dong
 # Copyright (C) 2004 IBM
 #
 # 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #
 MAINTAINERCLEANFILES = Makefile.in
 
 EXTRA_DIST		= $(ocf_SCRIPTS) $(ocfcommon_DATA) \
 			  $(common_DATA) $(hb_DATA) $(dtd_DATA) \
 			  README
 
 AM_CPPFLAGS		= -I$(top_srcdir)/include -I$(top_srcdir)/linux-ha
 
 halibdir		= $(libexecdir)/heartbeat
 
 ocfdir		        = $(OCF_RA_DIR_PREFIX)/heartbeat
 
 dtddir			= $(datadir)/$(PACKAGE_NAME)
 dtd_DATA		= ra-api-1.dtd
 
 if USE_IPV6ADDR_AGENT
 ocf_PROGRAMS           = IPv6addr
 else
 ocf_PROGRAMS           =
 endif
 
 if IPV6ADDR_COMPATIBLE
 halib_PROGRAMS         = send_ua
 else
 halib_PROGRAMS         =
 endif
 
 IPv6addr_SOURCES        = IPv6addr.c IPv6addr_utils.c
 send_ua_SOURCES         = send_ua.c IPv6addr_utils.c
 
 IPv6addr_LDADD          = -lplumb $(LIBNETLIBS)
 send_ua_LDADD           = $(LIBNETLIBS)
 
 ocf_SCRIPTS	     =  ClusterMon		\
 			CTDB			\
 			Dummy			\
 		        IPaddr			\
 		        IPaddr2			\
 			anything		\
 			AoEtarget		\
 			apache			\
 			asterisk		\
 			nginx			\
 			AudibleAlarm		\
 			clvm		\
 			conntrackd		\
 			db2			\
 			dhcpd		\
 			Delay			\
 			dnsupdate		\
 			docker			\
 			eDir88			\
 			EvmsSCC			\
 			Evmsd			\
 			ethmonitor		\
 			exportfs		\
 			Filesystem		\
 			fio			\
 			galera			\
 			ids			\
 			iscsi			\
 			ICP			\
 			IPsrcaddr		\
 			iSCSITarget		\
 			iSCSILogicalUnit	\
 			iface-bridge		\
 			iface-vlan		\
 			jboss			\
 			kamailio		\
 			LinuxSCSI		\
 			LVM			\
 			lxc			\
 			MailTo			\
 			ManageRAID		\
 			ManageVE		\
 			mysql			\
 			mysql-proxy		\
+			nagios			\
 			named			\
 			nfsnotify		\
 			nfsserver		\
 			oracle			\
 			oralsnr			\
 			pingd			\
 			portblock		\
 			postfix			\
 			pound			\
 			pgsql			\
 			proftpd			\
 			Pure-FTPd		\
 			rabbitmq-cluster	\
 			Raid1			\
 			redis			\
 			Route			\
 			rsyncd			\
 			rsyslog			\
 			SAPDatabase		\
 			SAPInstance		\
 			SendArp			\
 			ServeRAID		\
 			slapd			\
 			SphinxSearchDaemon	\
 			Squid			\
 			Stateful		\
 			SysInfo			\
 			scsi2reservation	\
 			sfex			\
                         sg_persist              \
 			symlink			\
 			syslog-ng		\
 			tomcat			\
 			VIPArip			\
 			VirtualDomain		\
 			varnish			\
 			vmware			\
 			WAS			\
 			WAS6			\
 			WinPopup		\
 			Xen			\
 			Xinetd			\
 			zabbixserver
 
 ocfcommondir		= $(OCF_LIB_DIR_PREFIX)/heartbeat
 ocfcommon_DATA		= ocf-shellfuncs 	\
 			  ocf-binaries	 	\
 			  ocf-directories 	\
 			  ocf-returncodes 	\
  			  ocf-rarun		\
 			  apache-conf.sh 	\
 			  http-mon.sh    	\
 			  sapdb-nosha.sh	\
 			  sapdb.sh		\
 			  ora-common.sh		\
 			  mysql-common.sh		\
 			  findif.sh
 
 # Legacy locations
 hbdir			= $(sysconfdir)/ha.d
 hb_DATA			= shellfuncs
diff --git a/heartbeat/nagios b/heartbeat/nagios
new file mode 100755
index 000000000..4639a6f77
--- /dev/null
+++ b/heartbeat/nagios
@@ -0,0 +1,250 @@
+#!/bin/sh
+#
+#  License:      GNU General Public License (GPL)
+#  (c) 2015 T.J. Yang, O. Albrigtsen
+#           and Linux-HA contributors
+#
+# -----------------------------------------------------------------------------
+#      O C F    R E S O U R C E    S C R I P T   S P E C I F I C A T I O N
+# -----------------------------------------------------------------------------
+#
+# NAME
+#       nagios : OCF resource agent script for Nagios Server
+#
+
+# Initialization:
+: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
+. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
+
+# Defaults
+OCF_RESKEY_user_default="nagios"
+OCF_RESKEY_group_default="nagios"
+OCF_RESKEY_binary_default="/usr/sbin/nagios"
+OCF_RESKEY_config_default="/etc/nagios/nagios.cfg"
+OCF_RESKEY_log_default="/var/log/nagios/nagios.log"
+OCF_RESKEY_retention_default="/var/log/nagios/retention.dat"
+OCF_RESKEY_command_default="/var/log/nagios/rw/nagios.cmd"
+OCF_RESKEY_pid_default="/var/run/nagios.pid"
+
+: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}}
+: ${OCF_RESKEY_group=${OCF_RESKEY_group_default}}
+: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}
+: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}}
+: ${OCF_RESKEY_log=${OCF_RESKEY_log_default}}
+: ${OCF_RESKEY_retention=${OCF_RESKEY_retention_default}}
+: ${OCF_RESKEY_command=${OCF_RESKEY_command_default}}
+: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}}
+
+
+nagios_usage() {
+  cat <<END
+    usage: $0 (start|stop|validate-all|meta-data|help|usage|monitor)
+    $0 manages a Nagios instance as an OCF HA resource.
+    The 'start' operation starts the instance.
+    The 'stop' operation stops the instance.
+    The 'status' operation reports whether the instance is running
+    The 'monitor' operation reports whether the instance seems to be working
+    The 'validate-all' operation reports whether the parameters are valid
+END
+}
+
+nagios_meta_data() {
+        cat <<END
+<?xml version="1.0"?>
+<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
+<resource-agent name="nagios">
+<version>0.75</version>
+
+<longdesc lang="en">OCF Resource script for Nagios 3.x or 4.x. It manages a Nagios instance as a HA resource.</longdesc>
+<shortdesc lang="en">Nagios resource agent</shortdesc>
+
+<parameters>
+
+<parameter name="user">
+    <longdesc lang="en">User running Nagios daemon (for file permissions)</longdesc>
+    <shortdesc lang="en">Nagios user</shortdesc>
+    <content type="string" default="${OCF_RESKEY_user_default}" />
+</parameter>
+
+<parameter name="group">
+    <longdesc lang="en">Group running Nagios daemon (for file permissions)</longdesc>
+    <shortdesc lang="en">Nagios group</shortdesc>
+    <content type="string" default="${OCF_RESKEY_group_default}" />
+</parameter>
+
+<parameter name="binary">
+    <longdesc lang="en">Location of the Nagios binary</longdesc>
+    <shortdesc lang="en">Nagios binary</shortdesc>
+    <content type="string" default="${OCF_RESKEY_binary_default}" />
+</parameter>
+
+<parameter name="config">
+    <longdesc lang="en">Configuration file</longdesc>
+    <shortdesc lang="en">Nagios config</shortdesc>
+    <content type="string" default="${OCF_RESKEY_config_default}" />
+</parameter>
+
+<parameter name="log">
+    <longdesc lang="en">Location of the Nagios log</longdesc>
+    <shortdesc lang="en">Nagios log</shortdesc>
+    <content type="string" default="${OCF_RESKEY_log_default}" />
+</parameter>
+
+<parameter name="retention">
+    <longdesc lang="en">Location of the Nagios retention file</longdesc>
+    <shortdesc lang="en">Nagios retention file</shortdesc>
+    <content type="string" default="${OCF_RESKEY_retention_default}" />
+</parameter>
+
+<parameter name="command">
+    <longdesc lang="en">Location of the Nagios external command file</longdesc>
+    <shortdesc lang="en">Nagios command file</shortdesc>
+    <content type="string" default="${OCF_RESKEY_command_default}" />
+</parameter>
+
+<parameter name="pid">
+    <longdesc lang="en">Location of the Nagios pid/lock</longdesc>
+    <shortdesc lang="en">Nagios pid file</shortdesc>
+    <content type="string" default="${OCF_RESKEY_pid_default}" />
+</parameter>
+
+</parameters>
+
+<actions>
+<action name="start" timeout="20" />
+<action name="stop" timeout="20" />
+<action name="status" timeout="20" />
+<action name="monitor" depth="0" timeout="20" interval="10" start-delay="10" />
+<action name="validate-all" timeout="20" />
+<action name="meta-data" timeout="20" />
+</actions>
+</resource-agent>
+END
+}
+
+
+nagios_start() {
+    nagios_validate_all
+    rc=$?
+    if [ $rc -ne 0 ]; then
+        return $rc
+    fi
+
+
+    # if resource is already running,no need to continue code after this.
+    if nagios_monitor; then
+        ocf_log info "Nagios is already running"
+        return $OCF_SUCCESS
+    fi
+
+    # Remove ${OCF_RESKEY_pid} if it exists
+    rm -f ${OCF_RESKEY_pid}
+
+    ocf_run -q touch ${OCF_RESKEY_log} ${OCF_RESKEY_retention} ${OCF_RESKEY_pid}
+    chown ${OCF_RESKEY_user}:${OCF_RESKEY_group} ${OCF_RESKEY_log} ${OCF_RESKEY_retention} ${OCF_RESKEY_pid}
+    rm -f ${OCF_RESKEY_command}
+    [ -x /sbin/restorecon ] && /sbin/restorecon ${OCF_RESKEY_pid}
+    ocf_run -q ${OCF_RESKEY_binary} -d ${OCF_RESKEY_config}
+
+    while ! nagios_monitor; do
+        sleep 1
+    done
+
+    if [ $? -eq "0" ]; then
+        ocf_log info "Nagios started"
+        return ${OCF_SUCCESS}
+    fi
+
+    return $OCF_SUCCESS
+}
+
+nagios_stop() {
+    nagios_monitor
+    if [ "$?" -ne "$OCF_SUCCESS" ]; then
+        # Currently not running. Nothing to do.
+        ocf_log info "Resource is already stopped"
+        rm -f ${OCF_RESKEY_pid}
+
+        return $OCF_SUCCESS
+    fi
+
+    kill `cat ${OCF_RESKEY_pid}`
+
+    # Wait for process to stop
+    while nagios_monitor; do
+        sleep 1
+    done
+    
+    return $OCF_SUCCESS
+}
+
+nagios_monitor(){
+    ocf_pidfile_status ${OCF_RESKEY_pid} > /dev/null 2>&1
+    case "$?" in
+        0)
+            rc=$OCF_SUCCESS
+            ;;
+        1|2)
+            rc=$OCF_NOT_RUNNING
+            ;;
+        *)
+            rc=$OCF_ERR_GENERIC
+            ;;
+    esac
+    return $rc
+}
+
+nagios_validate_all(){
+    check_binary ${OCF_RESKEY_binary}
+    
+    if [ ! -f ${OCF_RESKEY_config} ]; then
+        ocf_exit_reason "Configuration file ${OCF_RESKEY_config} not found"
+        return ${OCF_ERR_INSTALLED}
+    fi
+    
+    ${OCF_RESKEY_binary} -v ${OCF_RESKEY_config} > /dev/null 2>&1;
+    if [ $? -ne "0" ]; then
+        ocf_exit_reason "Configuration check failed"
+        return ${OCF_ERR_INSTALLED}
+    fi
+}
+
+
+# **************************** MAIN SCRIPT ************************************
+
+# This OCF agent script need to be run as root user.
+if ! ocf_is_root; then
+        echo  "$0 agent script need to be run as root user."
+        ocf_log debug "$0 agent script need to be run as root user."
+        exit $OCF_ERR_GENERIC
+fi
+
+# Make sure meta-data and usage always succeed
+case $__OCF_ACTION in
+meta-data)      nagios_meta_data
+                exit $OCF_SUCCESS
+                ;;
+usage|help)     nagios_usage
+                exit $OCF_SUCCESS
+                ;;
+esac
+
+# Anything other than meta-data and usage must pass validation
+# this will failed on Nagios slave when config files are in master:/dev/drbd0
+# nagios_validate_all || exit $?
+
+# Translate each action into the appropriate function call
+case $__OCF_ACTION in
+start)          nagios_start;;
+stop)           nagios_stop;;
+status|monitor) nagios_monitor;;
+validate-all)   nagios_validate_all;;
+*)              nagios_usage
+                exit $OCF_ERR_UNIMPLEMENTED
+                ;;
+esac
+rc=$?
+
+exit $rc
+  
+# End of this script