Merge branch 'fix_lustre_check' into 'master'

Fix lustre check

See merge request hpc-team/ansible_cluster_in_a_box!253

roles/nhc/files/scripts/check_lustre_health.nhc

+#!/bin/bash
+
 function  check_lustre_health() {
-health_check=`cat /proc/fs/lustre/health_check`
+# lustre health check file is different on different versions
+HEALTH_FILE="/proc/fs/lustre/health_check"
+if [ ! -f $HEALTH_FILE ]; then
+   HEALTH_FILE="/sys/fs/lustre/health_check"
+fi
+health_check=`cat $HEALTH_FILE`
 if [ $health_check != "healthy" ]
 then
    die 1 " $FUNCNAME  Lustre Health check failed $health_check"