#!/bin/bash

monitor="/usr/sbin/crm_mon -1"

# check cluster is healthy
${monitor} -s 1>/dev/null
if [ "$?" != "0" ];
then
   echo "Cluster is not OK!"
   exit 2
else
   #
   # check if there is at least one nfs server active
   #
   ${monitor} | grep nfsclusterserver | grep -i started 1>/dev/null
   if [ "$?" != "0" ];
   then
      echo "NFS server is not running anywhere!"
      exit 2
   else
      hname=$(hostname -s)
      ${monitor} | grep $hname | grep nfsclusterserver 1>/dev/null
      if [ "$?" = "0" ];
      then
         #
         # I am the nfs server: check if I'm healthy
         #
         exec /usr/lib64/nagios/plugins/check_nfs4
      else
         #
         # I am not the nfs server but:
         # - the cluster is ok
         # - the service is running
         #
         echo "NFS is running somewhere..."
         exit 0
      fi
   fi
fi