File check_disks_xcp of Package nagios-plugins-xenserver

#!/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