#!/usr/bin/env bash

# Licensed to the Apache Software Foundation (ASF) under one

# or more contributor license agreements. See the NOTICE file

# distributed with this work for additional information

# regarding copyright ownership. The ASF licenses this file

# to you under the Apache License, Version 2.0 (the

# "License"); you may not use this file except in compliance

# with the License. You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing,

# software distributed under the License is distributed on an

# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

# KIND, either express or implied. See the License for the

# specific language governing permissions and limitations

# under the License.

# Health check script for the Secondary Storage VM

# DNS server is specified.

CMDLINE=/var/cache/cloud/cmdline

for i in `cat $CMDLINE`

do

key=`echo $i | cut -d= -f1`

value=`echo $i | cut -d= -f2`

case $key in

host)

MGMTSERVER=$value

;;

esac

done

isCifs() {

mount | grep "type cifs" > /dev/null

echo $?

}

# ping dns server

echo ================================================

DNSSERVER=`egrep '^nameserver' /etc/resolv.conf | awk '{print $2}'| head -1`

echo "First DNS server is " $DNSSERVER

ping -c 2 $DNSSERVER

if [ $? -eq 0 ]

then

echo "Good: Can ping DNS server"

else

echo "WARNING: cannot ping DNS server"

echo "route follows"

route -n

fi

# check dns resolve

echo ================================================

nslookup download.cloud.com 1> /tmp/dns 2>&1

grep 'no servers could' /tmp/dns 1> /dev/null 2>&1

if [ $? -eq 0 ]

then

echo "ERROR: DNS not resolving download.cloud.com"

echo resolv.conf follows

cat /etc/resolv.conf

exit 2

else

echo "Good: DNS resolves download.cloud.com"

fi

# check to see if we have the NFS volume mounted

echo ================================================

storage="cifs"

if [ $(isCifs) -ne 0 ] ;

then

storage="nfs"

fi

mount|grep -v sunrpc|grep -v rpc_pipefs|grep $storage 1> /dev/null 2>&1

if [ $? -eq 0 ]

then

echo "$storage is currently mounted"

# check for write access

for MOUNTPT in `mount|grep -v sunrpc|grep -v rpc_pipefs|grep $storage| awk '{print $3}'`

do

if [ $MOUNTPT != "/proc/xen" ] # mounted by xen

then

echo Mount point is $MOUNTPT

touch $MOUNTPT/foo

if [ $? -eq 0 ]

then

echo "Good: Can write to mount point"

rm $MOUNTPT/foo

else

echo "ERROR: Cannot write to mount point"

echo "You need to export with norootsquash"

fi

fi

done

else

echo "ERROR: NFS is not currently mounted"

echo "Try manually mounting from inside the VM"

NFSSERVER=`awk '{print $17}' $CMDLINE|awk -F= '{print $2}'|awk -F: '{print $1}'`

echo "NFS server is " $NFSSERVER

ping -c 2 $NFSSERVER

if [ $? -eq 0 ]

then

echo "Good: Can ping $storage server"

else

echo "WARNING: cannot ping $storage server"

echo routing table follows

route -n

fi

fi

# check for connectivity to the management server

echo ================================================

echo Management server is $MGMTSERVER. Checking connectivity.

socatout=$(echo | socat - TCP:$MGMTSERVER:8250,connect-timeout=3 2>&1)

if [ $? -eq 0 ]

then

echo "Good: Can connect to management server port 8250"

else

echo "ERROR: Cannot connect to $MGMTSERVER port 8250"

echo $socatout

exit 4

fi

# check for the java process running

echo ================================================

ps -eaf|grep -v grep|grep java 1> /dev/null 2>&1

if [ $? -eq 0 ]

then

echo "Good: Java process is running"

else

echo "ERROR: Java process not running. Try restarting the SSVM."

exit 3

fi

echo ================================================

echo Tests Complete. Look for ERROR or WARNING above.

exit 0