check_backuppc/check_backuppc_du

179 lines
4.8 KiB
Perl
Executable File

#!/usr/bin/perl
#
# check_backuppc_du: a Nagios plugin to check the compressed disk usage of BackupPC hosts
#
# Tested against BackupPC 3 (3.2.1) and 4 (4.1.5) and Icinga (1.11.6)
# <https://backuppc.github.io/backuppc/>
# <https://www.icinga.com>
#
# AUTHORS
# Benjamin Renard <brenard@easter-eggs.com>
# Emmanuel Lacour <elacour@easter-eggs.com>
#
# COPYRIGHT
# Copyright (C) 2018 Easter-eggs
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
use strict;
no utf8;
# Nagios
use lib "/usr/lib/nagios/plugins";
use utils qw(%ERRORS $TIMEOUT);
use POSIX qw(strftime difftime);
use Getopt::Long;
Getopt::Long::Configure('bundling');
# BackupPC
use lib "/usr/share/backuppc/lib";
use BackupPC::Lib;
my $version = '1.0';
# Default quota (GB)
my $quota = 100;
my $opt_V = 0;
my $opt_h = 0;
my $host;
my @hostlist;
my %Status;
my $statusCode = 'OK';
# Process options
my $goodOpt = GetOptions(
'q=f' => \$quota, 'quota=f' => \$quota,
'V' => \$opt_V, 'version' => \$opt_V,
'h' => \$opt_h, 'help' => \$opt_h,
'H=s' => \$host, 'hostname=s' => \$host,
'L=s' => \@hostlist, 'hostlist=s' => \@hostlist,
);
if ($opt_V)
{
print "check_backuppc_du - " . $version . "\n";
exit $ERRORS{'OK'};
}
if ($opt_h or not $goodOpt)
{
print "check_backuppc_du - " . $version . "\n";
print "A Nagios plugin to check on BackupPC backup status.\n\n";
print "Options:\n";
print " --hostname,-H perl regexp to match hostnames\n";
print " --quota,-q quota size (GB)\n";
print " --version,-V display plugin version\n";
print " --help,-h display this message\n\n";
exit $ERRORS{'OK'} if $goodOpt;
exit $ERRORS{'UNKNOWN'};
}
# Connect to BackupPC
my $server;
if (!($server = BackupPC::Lib->new))
{
print "BACKUPPC CRITICAL - Couldn't connect to BackupPC\n";
exit $ERRORS{'CRITICAL'};
}
my %Conf = $server->Conf();
$server->ChildInit();
my $err = $server->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
if ($err)
{
print("BACKUPPC UNKNOWN - Can't connect to server ($err)\n");
exit $ERRORS{'UNKNOWN'};
}
# query the BackupPC server for host status
my $status_raw = $server->ServerMesg('status hosts');
my $hosts_infos = $server->HostInfoRead();
# undump the output... BackupPC uses Data::Dumper
eval $status_raw;
# Allow hostname separeted by comma
@hostlist = split(/,/,join(',',@hostlist));
my $per_host_detail;
my $total_usage = 0;
my $total_count = 0;
my $host_count = 0;
foreach my $hostname ( sort(keys %Status) ) {
next if $hostname =~ /^\s*$/;
next if $hostname =~ /^ /;
next if ( $host && $hostname !~ m/$host/ );
next if ( scalar(@hostlist) > 0 && not(grep /^\Q$hostname$/, @hostlist) );
my %HostStatus = %{$Status{$hostname}};
my %host_conf = %{$server->ConfigDataRead($hostname)};
$HostStatus{BackupsDisable} = $host_conf{BackupsDisable};
next if ( $HostStatus{BackupsDisable} eq 2);
next if ($HostStatus{'type'} eq 'archive');
$host_count++;
# Backups
my @Backups = $server->BackupInfoRead($hostname);
# Get aggregate of compressed used size (octets)
my $full_size = 0;
my $backups_count = 0;
foreach my $Backup (sort {$a->{num} cmp $b->{num}} @Backups) {
if ( $full_size == 0 ) {
$full_size += $Backup->{sizeExistComp};
$full_size += $Backup->{sizeNewComp};
} else {
$full_size += $Backup->{sizeNewComp};
}
$backups_count++;
}
$total_usage += $full_size;
$total_count += $backups_count;
# Convert to Go
$full_size = sprintf("%0.2f", $full_size / 1024 / 1024 / 1024);
# Output size
$per_host_detail .= "$hostname: $backups_count backups / $full_size Go\n";
}
unless ( $host_count ) {
print "BACKUPPC UNKNOWN - no host matching $host\n";
exit $ERRORS{'UNKNOWN'};
}
$total_usage = sprintf("%0.2f", $total_usage / 1024 / 1024 / 1024);
if ( $total_usage >= $quota ) {
print "BACKUPPC CRITICAL - $total_usage Go used / $quota Go allocated\n";
$statusCode = 'CRITICAL';
} elsif ( $total_usage >= $quota * 0.90 ) {
print "BACKUPPC WARNING - $total_usage Go used / $quota Go allocated\n";
$statusCode = 'WARNING';
} else {
print "BACKUPPC OK - $total_usage Go used / $quota Go allocated\n";
}
print "Total of $total_count backups with cumulative compressed size of $total_usage Go for $host_count active hosts\n";
print $per_host_detail;
exit $ERRORS{$statusCode};