287 lines
11 KiB
Perl
Executable file
287 lines
11 KiB
Perl
Executable file
#!/usr/bin/perl
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#
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# check_backuppc: a Nagios plugin to check the status of BackupPC
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#
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# Tested against BackupPC 3 (3.2.1) and 4 (4.1.5) and Icinga (1.11.6)
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# <https://backuppc.github.io/backuppc/>
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# <https://www.icinga.com>
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#
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# AUTHORS
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# Benjamin Renard <brenard@easter-eggs.com>
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#
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# Fork from check_backuppc 1.1.0 write by Seneca Cunningham
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# <tetragon@users.sourceforge.net>.
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#
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# COPYRIGHT
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# Copyright (C) 2018 Easter-eggs
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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use strict;
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no utf8;
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# Nagios
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use lib "/usr/lib/nagios/plugins";
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use utils qw(%ERRORS $TIMEOUT);
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use POSIX qw(strftime difftime);
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use Getopt::Long;
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Getopt::Long::Configure('bundling');
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# BackupPC
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use lib "/usr/share/backuppc/lib";
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use BackupPC::Lib;
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my $version = 'dev';
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my $warnDaysOld = 2;
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my $critDaysOld = 7;
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my $warnDaysInProgress = 0.5;
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my $critDaysInProgress = 1;
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my $verbose = 0;
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my $opt_V = 0;
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my $opt_h = 0;
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my $goodOpt = 0;
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my @ownerOnly;
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my @hostsDesired;
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my @hostsExcluded;
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my $forceCheckOnDisabledHosts;
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my %Status;
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my $statusCode = 'UNKNOWN';
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my $ok_count = 0;
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my $unknown_count = 0;
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my $warning_count = 0;
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my $critical_count = 0;
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# Process options
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$goodOpt = GetOptions(
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'v+' => \$verbose, 'verbose+' => \$verbose,
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'c=f' => \$critDaysOld, 'critical=f' => \$critDaysOld,
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'w=f' => \$warnDaysOld, 'warning=f' => \$warnDaysOld,
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'C=f' => \$critDaysInProgress, 'critprog=f' => \$critDaysInProgress,
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'W=f' => \$warnDaysInProgress, 'warnprog=f' => \$warnDaysInProgress,
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'o=s' => \@ownerOnly, 'owner=s' => \@ownerOnly,
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'V' => \$opt_V, 'version' => \$opt_V,
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'h' => \$opt_h, 'help' => \$opt_h,
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'H=s' => \@hostsDesired, 'hostname=s' => \@hostsDesired,
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'x=s' => \@hostsExcluded, 'exclude=s' => \@hostsExcluded,
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'f' => \$forceCheckOnDisabledHosts, 'force=s' => \$forceCheckOnDisabledHosts);
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@hostsDesired = () if $#hostsDesired < 0;
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@hostsExcluded = () if $#hostsExcluded < 0;
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# Always check disabled host if a named host is provided (when backup is triggered by cron)
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$forceCheckOnDisabledHosts = 1 if ( @hostsDesired && scalar(@hostsDesired) );
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if ($opt_V)
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{
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print "check_backuppc - " . $version . "\n";
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exit $ERRORS{'OK'};
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}
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if ($opt_h or not $goodOpt)
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{
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print "check_backuppc - " . $version . "\n";
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print "A Nagios plugin to check on BackupPC backup status.\n\n";
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print "Options:\n";
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print " --hostname,-H only check the specified host\n";
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print " --exclude,-x do not check the specified host\n";
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print " --owner,-o do only hosts of specified user\n";
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print " --force,-f force check even if host is disabled\n";
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print " --warning,-w days old of last good backup to cause a warning\n";
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print " --critical,-c days old of last good backup to be critical\n";
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print " --warnprog,-W duration (in days) for state backup_in_progress to cause a warning\n";
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print " --critprog,-C duration (in days) for state backup_in_progress to be critical\n";
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print " --verbose,-v increase verbosity\n";
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print " --version,-V display plugin version\n";
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print " --help,-h display this message\n\n";
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exit $ERRORS{'OK'} if $goodOpt;
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exit $ERRORS{'UNKNOWN'};
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}
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if ($warnDaysOld > $critDaysOld)
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{
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print("BACKUPPC UNKNOWN - Warning threshold must be <= critical\n");
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exit $ERRORS{'UNKNOWN'};
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}
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if ($warnDaysInProgress > $critDaysInProgress)
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{
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print("BACKUPPC UNKNOWN - Warning in progress threshold must be <= critical in progress\n");
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exit $ERRORS{'UNKNOWN'};
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}
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# Connect to BackupPC
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my $server;
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if (!($server = BackupPC::Lib->new))
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{
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print "BACKUPPC CRITICAL - Couldn't connect to BackupPC\n";
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exit $ERRORS{'CRITICAL'};
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}
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my %Conf = $server->Conf();
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$server->ChildInit();
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my $err = $server->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
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if ($err)
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{
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print("BACKUPPC UNKNOWN - Can't connect to server ($err)\n");
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exit $ERRORS{'UNKNOWN'};
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}
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# query the BackupPC server for host status
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my $status_raw = $server->ServerMesg('status hosts');
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my $hosts_infos = $server->HostInfoRead();
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# undump the output... BackupPC uses Data::Dumper
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eval $status_raw;
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# check the dumped output
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my $hostCount = 0;
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foreach my $host (@hostsDesired, @hostsExcluded)
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{
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if (not grep {/^$host$/} keys(%Status))
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{
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print("BACKUPPC UNKNOWN - Unknown host ($host)\n");
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exit $ERRORS{'UNKNOWN'};
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}
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}
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# host status checks
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foreach my $host (sort(keys(%Status)))
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{
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next if $host =~ /^ /;
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my $owner = $hosts_infos->{$host}->{user};
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next if (@ownerOnly and not grep {/$owner/} @ownerOnly);
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my %host_conf = %{$server->ConfigDataRead($host)};
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$Status{$host}{BackupsDisable} = $host_conf{BackupsDisable};
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next if ( $Status{$host}{BackupsDisable} && $Status{$host}{BackupsDisable} == 2 and not $forceCheckOnDisabledHosts );
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next if (@hostsDesired and not grep {/^$host$/} @hostsDesired);
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next if (@hostsExcluded and grep {/^$host$/} @hostsExcluded);
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next if ($Status{$host}{'type'} eq 'archive');
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$Status{$host}{'statusCode'} = 'OK';
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$hostCount++;
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# Debug
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if ($verbose == 2)
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{
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while (my ($key, $value) = each %{$Status{$host}}) {
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print "$key:\t$value\n";
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}
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print "Host $host state " . $Status{$host}{'state'} . "\n";
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print " with reason: " . $Status{$host}{'reason'} . "\n";
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print " with error: " . $Status{$host}{'error'} . "\n";
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print " with owner: $owner\n\n";
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}
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# Check host error
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if ($Status{$host}{'error'})
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{
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$Status{$host}{statusCode} = 'CRITICAL';
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$Status{$host}{statusMsg} = "error: " .$Status{$host}{'error'} . " /"
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. ( $Status{$host}{reason} ne '' ? " reason: " . $Status{$host}{reason} . "/" : '' )
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. " status: " . $Status{$host}{'state'};
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} else {
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$Status{$host}{statusMsg} = "status: ".$Status{$host}{'state'};
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}
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# Check last good backup time
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$Status{$host}{'lastGoodBackupDays'} = difftime(time(), $Status{$host}{'lastGoodBackupTime'}) / (3600 * 24) if ( defined $Status{$host}{'lastGoodBackupTime'} );
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if ( ! $Status{$host}{'lastGoodBackupDays'} ) {
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$Status{$host}{'startDays'} = difftime(time(), $Status{$host}{'startTime'}) / (3600 * 24);
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if ( $Status{$host}{'startDays'} > $critDaysOld ) {
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$Status{$host}{statusMsg} .= ", no backups";
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$Status{$host}{statusCode} = 'CRITICAL';
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} elsif ( $Status{$host}{'startDays'} > $warnDaysOld ) {
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$Status{$host}{statusMsg} .= ", no backups";
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$Status{$host}{statusCode} = 'WARNING' unless ( $Status{$host}{statusCode} eq 'CRITICAL' );
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$statusCode = 'WARNING' unless ( $statusCode eq 'CRITICAL' );
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}
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} else {
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if ($Status{$host}{state} eq 'Status_backup_in_progress') {
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$Status{$host}{'startDays'} = difftime(time(), $Status{$host}{'startTime'}) / (3600 * 24);
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if ( $Status{$host}{'startDays'} > $critDaysInProgress ) {
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$Status{$host}{statusMsg} .= " for " . sprintf("%.1f", $Status{$host}{'startDays'} * 24) . " hours";
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$Status{$host}{statusCode} = 'CRITICAL';
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} elsif ( $Status{$host}{'startDays'} > $warnDaysInProgress ) {
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$Status{$host}{statusMsg} .= " for " . sprintf("%.1f", $Status{$host}{'startDays'} * 24) . " hours";
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$Status{$host}{statusCode} = 'WARNING' unless ( $Status{$host}{statusCode} eq 'CRITICAL' );
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}
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}
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if ( $Status{$host}{'lastGoodBackupDays'} > $critDaysOld ) {
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$Status{$host}{statusMsg} .= ", last good backup have ".sprintf("%.1f", $Status{$host}{'lastGoodBackupDays'})." days";
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$Status{$host}{statusCode} = 'CRITICAL';
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}
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elsif ( $Status{$host}{'lastGoodBackupDays'} > $warnDaysOld ) {
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$Status{$host}{statusMsg} .= ", last good backup have ".sprintf("%.1f",$Status{$host}{'lastGoodBackupDays'})." days";
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$Status{$host}{statusCode} = 'WARNING' unless ( $Status{$host}{statusCode} eq 'CRITICAL' );
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} else {
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$Status{$host}{statusMsg} .= ", last good backup have ".sprintf("%.1f",$Status{$host}{'lastGoodBackupDays'})." days";
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}
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}
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$ok_count++ if ( $Status{$host}{statusCode} eq 'OK' );
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$unknown_count++ if ( $Status{$host}{statusCode} eq 'UNKNOWN' );
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$warning_count++ if ( $Status{$host}{statusCode} eq 'WARNING' );
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$critical_count++ if ( $Status{$host}{statusCode} eq 'CRITICAL' );
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}
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# Ensure we checked at least one host
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if ( $hostCount == 0 || !scalar(keys %Status) ) {
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$statusCode = 'CRITICAL';
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} elsif ( grep { $Status{$_}{statusCode} eq 'CRITICAL' } keys %Status ) {
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$statusCode = 'CRITICAL';
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} elsif ( grep { $Status{$_}{statusCode} eq 'WARNING' } keys %Status ) {
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$statusCode = 'WARNING';
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} elsif ( grep { $Status{$_}{statusCode} eq 'UNKNOWN' } keys %Status ) {
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$statusCode = 'UNKNOWN';
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} else {
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$statusCode = 'OK';
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}
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my $statusMsg = "BACKUPPC $statusCode";
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if ( $statusCode eq 'OK' ) {
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if ( $verbose && scalar(@hostsDesired) == 1 ) {
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$statusMsg .= " (".$Status{$hostsDesired[0]}{statusMsg}.")";
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} else {
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$statusMsg .= " ($ok_count OK)";
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}
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} else {
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if ( $verbose ) {
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$statusMsg .= " (";
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my $first_host = 1;
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if ($hostCount == 0 || !scalar(keys %Status)) {
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$statusMsg .= "no host checked";
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} else {
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foreach my $host ( keys %Status ) {
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next if (@hostsDesired and not grep {/^$host$/} @hostsDesired);
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next if (@hostsExcluded and grep {/^$host$/} @hostsExcluded);
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next if ( $Status{$host}{BackupsDisable} && $Status{$host}{BackupsDisable} == 2 and not $forceCheckOnDisabledHosts );
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next if ($Status{$host}{'type'} eq 'archive');
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if ( $Status{$host}{statusCode} && $Status{$host}{statusCode} ne 'OK' ) {
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$statusMsg .= ", " unless ( $first_host );
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$statusMsg .= "$host: ".$Status{$host}{statusCode}." - ".$Status{$host}{statusMsg};
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$first_host = 0 if ( $first_host );
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}
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}
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}
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$statusMsg .= ")";
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} else {
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$statusMsg .= " ( $ok_count OK, $unknown_count UNKNOWN, $warning_count WARNING, $critical_count CRITICAL)";
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}
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}
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print "$statusMsg\n";
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exit $ERRORS{$statusCode};
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# vim:set sw=4 ts=4 sts=4 ft=perl expandtab:
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