#!/bin/bash
#Panzura Space Usage check
#by George Pereira
#Email: firstnameabove_lastnameabove(at)gensler.com
version () {
echo "check_panzura Version 0.89"
exit
}
usage () {
echo "Usage:
 $0 -H <host> -C <community> -t <storage type> -w <warn %> -c <critical %> | -h | -V
------------------------------------------------------------------------------
Options:
        -H <hostname>
            The hostname or IP address of the panzura unit.
        -C <community>
            The SNMP community name.  Default is "public".
        -t <storage type>
            Storage type to check.  Either local or cloud (case sensitive)
        -w <warning %>
            The warning threshold (in % used, number only)
        -c <critical %>
            The critical threshold (in % used, number only)
        -h
            Shows this help screen.
        -V
            Shows the current version.
Example:
        $0 -H 192.168.1.2 -C public -t local -w 85 -c 90
        Will warn if the % used of the local or cloud disk space is above 85%, and critical if it's above 90%
------------------------------------------------------------------------------"
exit
}

community="public"
while getopts "H:VC:t:w:c:h" opt; do
        case $opt in
                H) hostname=$OPTARG;;
                V) version;;
                C) community=$OPTARG;;
                t) type=$OPTARG;;
                w) warning=$OPTARG;;
                c) critical=$OPTARG;;
                h) usage;;
                *) usage;;
        esac
done
shift $((OPTIND-1))

if [[ -n "$community"  &&  -n "$hostname" && -n "$type" && -n "$warning" && -n "$critical" ]] ; then
    if [[ "$type" == "local" ]]; then
        panzuraHDused=$(snmpget -v2c -Ovq -c $community $hostname 1.3.6.1.4.1.32853.1.3.1.3.1.0 2>/dev/null)
        panzuraHDtotal=$(snmpget -v2c -Ovq -c $community $hostname 1.3.6.1.4.1.32853.1.3.1.3.3.0 2>/dev/null)
        ttype=$(echo "LocalHD")
    fi
    if [[ "$type" == "cloud" ]]; then
        panzuraHDused=$(snmpget -v2c -Ovq -c $community $hostname 1.3.6.1.4.1.32853.1.3.1.4.1.0 2>/dev/null)
        panzuraHDtotal=$(snmpget -v2c -Ovq -c $community $hostname 1.3.6.1.4.1.32853.1.3.1.4.3.0 2>/dev/null)
        ttype=$(echo "CloudHD")
    fi
    
    if [[ -n "$panzuraHDused" && -n "$panzuraHDtotal" ]]; then
            used=$(printf '%.2f\n' $(echo "100 * ($panzuraHDused / $panzuraHDtotal)"|bc -l))
            free=$(printf '%.2f\n' $(echo "100 - $used"|bc -l))
            usedGB=$(printf '%.2f\n' $(echo "($panzuraHDused / 1024) / 1024"|bc -l))
            totalGB=$(printf '%.2f\n' $(echo "($panzuraHDtotal / 1024) / 1024"|bc -l))
            if [ $(echo "$used >= $critical" | bc) -eq 1 ]
            then
                    echo "CRITICAL - $ttype usage: $usedGB / $totalGB GB ($used%)|$ttype=$used%;$warning;$critical"
                    exit 2
            elif [ $(echo "$used >= $warning" | bc) -eq 1 ]
            then
                    echo "WARNING - $ttype usage: $usedGB / $totalGB GB ($used%)|$tttpe=$used%;$warning;$critical"
                    exit 1
            elif [ $(echo "$used < $warning" | bc) -eq 1 ]
            then
                    echo "OK - $ttype usage: $usedGB / $totalGB GB ($used%)|LocalHD=$used%;$warning;$critical"
                    exit 0
            else
                    echo "UNKNOWN - $ttype usage: $usedGB / $totalGB GB ($used%)|LocalHD=$used%;$warning;$critical"
                    exit 3
            fi
    else
            echo "UNKNOWN - Check host/community name"
            exit 3
    fi
else
        usage
fi