#!/bin/bash

# Author: Marek Rzepala <Marek.Rzepala@internetx.com> 

# Version: 1.01

# Last changed: 12.11.2020

# Upstream URL: https://gitlab.muc.internetx.com/p-s/nagios/check_disks_xcp

​

### CHANGE THIS IF NEEDED

CRIT=90

WARN=80

TMP_FILE="/tmp/disks_host_"

### CHANGE THIS IF NEEDED

​

#exit without sr type argument

if [ $# -ne 1 ]; then

        echo ""

        echo $0

        echo "### usage: "

        echo "    $0 [ valid sr type; showtypes for help ]" 

        exit 1

fi

​

# save sr uuids in some tmp files, which file names are based on hostnames reported from xe

# also dont use host attribute on lvmoiscsi; but really this should be a check whether or not sr type also has the host=<shared> property

if [ $1 == lvmoiscsi ]; then

    xe host-list params=name-label | sort | awk '{print $NF}' | sed -r '/^\s*$/d' | while read line; do xe sr-list type=$1 params=uuid | sed -r '/^\s*$/d' > "$TMP_FILE""$line"; done

else

    if [ $1 == showtypes ]; then

        xe host-list params=name-label | sort | sed -r '/^\s*$/d' | while read line; do xe sr-list params=type; done | sort | uniq | sed -r '/^\s*$/d' && exit 0

    else

        xe host-list params=name-label | sort | awk '{print $NF}' | sed -r '/^\s*$/d' | while read line; do xe sr-list host=$line type=$1 params=uuid | sed -r '/^\s*$/d' > "$TMP_FILE"$line ; done

    fi

fi

no_hosts=$( ls -1 "$TMP_FILE"* | wc -l )

​

for f in "$TMP_FILE"*

do

# create some variables for further use 

# append different characters based on conditions

    hostname=$(echo "$f" | sed "s#$TMP_FILE##g" | sed  "s#-#_#g")

    cat $f | awk '{print $NF}' | while read line2; do 

        physical_size=$(xe sr-list uuid=$line2 params=physical-size | awk '{print $NF}')

        physical_usage=$(xe sr-list uuid=$line2 params=physical-utilisation | awk '{print $NF}')

        sr_name=$(xe sr-list uuid=$line2 params=name-label | awk -F ":" '{print $NF}')

        is_sr_shared=$([[ -z $( xe sr-list uuid=$line2 params=host | grep shared) ]] && echo 0 || echo 1)

        if [[ $physical_size -eq 0 ]]; then 

            disk_usage=$(echo 0)

        else

            disk_usage=$( echo "scale=3; $( echo $physical_usage) / $( echo $physical_size) * 100" | bc | awk '{print ($0-int($0)<0.499)?int($0):int($0)+1}')

        fi

        if [[ $disk_usage -ge CRIT ]]; then

            if [[ $is_sr_shared -eq 1 ]]; then

#               echo "1CR SHARED on $line2 - $disk_usage"%" storage usage on"$sr_name" ":" $hostname" >> $f

                echo "1CR SHARED on $line2 - $disk_usage"%" storage usage on"$sr_name"" >> $f

            else 

#               echo "1CR on $line2 - $disk_usage"%" storage usage on"$sr_name" ":" $hostname" >> $f

                echo "1CR on $line2 - $disk_usage"%" storage usage on"$sr_name"" >> $f

            fi

        else

            if [[ $disk_usage -ge WARN ]]; then

                if [[ $is_sr_shared -eq 1 ]]; then

#                   echo "1WR SHARED on $line2 - $disk_usage"%" storage usage on"$sr_name" ":" $hostname" >> $f

                    echo "1WR SHARED on $line2 - $disk_usage"%" storage usage on"$sr_name"" >> $f

                else

#                   echo "1WR on $line2 - $disk_usage"%" storage usage on"$sr_name" ":" $hostname" >> $f

                    echo "1WR on $line2 - $disk_usage"%" storage usage on"$sr_name"" >> $f

                fi

            fi

        fi

    done

​

done

​

if [ $1 == lvmoiscsi ]; then

    cr_shared=$(grep "SHARED" "$TMP_FILE"* | awk -F ":" '{print $2}' | sort | uniq | grep 1CR)

    wr_shared=$(grep "SHARED" "$TMP_FILE"* | awk -F ":" '{print $2}' | sort | uniq | grep 1WR)

    if [[ $(echo $cr_shared | awk '{print NF}') -ne 0 ]]; then

        echo -n "CRITICAL - " 

        echo -n $(grep "SHARED" "$TMP_FILE"* | awk -F ":" '{print $2}' | sort | uniq | grep 1CR | awk -F "-" '{print $6 " " "##"}')

        [[ $(echo $wr_shared | awk '{print NF}') -eq 0 ]] && echo

        if [[ $(echo $wr_shared | awk '{print NF}') -ne 0 ]]; then

            echo -n "WARNING" $(grep "SHARED" "$TMP_FILE"* | awk -F ":" '{print $2}' | sort | uniq | grep 1WR | awk -F "-" '{print $6 " " "##"}')

            echo

            exit 2

        fi

    else

        if [[ $(echo $wr_shared | awk '{print NF}') -ne 0 ]]; then

            echo -n "WARNING - " 

            echo -n $(grep "SHARED" "$TMP_FILE"* | awk -F ":" '{print $2}' | sort | uniq | grep 1WR | awk -F "-" '{print $6 " " "##"}')

            echo

                exit 1

        else 

            if [[ $(echo $cr_shared | awk '{print NF}') -eq 0 ]] && [[ $(echo $wr_shared | awk '{print NF}') -eq 0 ]]; then

            echo "OK"

            exit 0

            fi

        fi

    fi

fi

​

cr_local=$(grep "1CR" "$TMP_FILE"* | awk -F ":" '{print $2}')

wr_local=$(grep "1WR" "$TMP_FILE"* | awk -F ":" '{print $2}')

​

if [[ $(echo $cr_local | awk '{print NF}') -ne 0 ]]; then

    echo -n "CRITICAL - "

    echo -n $(grep "1CR" "$TMP_FILE"* | awk '{print $5, $6, $7, $8, $9, $10, $8, $1}' | awk -F ":" '{print $1 " ##"}' | sed "s#$TMP_FILE##g")

    [[ $(echo $wr_local | awk '{print NF}') -eq 0 ]] && echo

    if [[ $(echo $wr_local | awk '{print NF}') -ne 0 ]]; then

    echo -n "WARNING" $(grep "1WR" "$TMP_FILE"* | awk '{print $5, $6, $7, $8, $9, $10, $8, $1}' | awk -F ":" '{print $1 " ##"}' | sed "s#$TMP_FILE##g")

    echo

    exit 2

fi

else

    if [[ $(echo $wr_local | awk '{print NF}') -ne 0 ]]; then

        echo -n "WARNING - "

        echo -n $(grep "1WR" "$TMP_FILE"* | awk '{print $5, $6, $7, $8, $9, $10, $8, $1}' | awk -F ":" '{print $1 " ##"}' | sed "s#$TMP_FILE##g")

        echo 

        exit 1

    else

        if [[ $(echo $cr_local | awk '{print NF}') -eq 0 ]] && [[ $(echo $wr_local | awk '{print NF}') -eq 0 ]]; then

            echo "OK"

            exit 0

        fi

    fi

fi

​