667 lines
18 KiB
Perl
667 lines
18 KiB
Perl
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#!/usr/bin/perl -w
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# check_status.pl Nagios Plugin - Version 1.3
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# Last Updated: 1/9/2003
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#
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# Report any bugs/questions to Russell Scibetti at russell@quadrix.com
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#
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# check_status Change Log:
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#
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# To do for 1.4
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# - Better help and documentation (separate doc?)
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# - Take argument (patterns to match) from a separate spec file
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#
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# New Addition to 1.3
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# - Added ChangeLog information and updated --help output
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# - hostdown (hd) argument for how a service check should respond
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# when its host is Down/Unreachable
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# (--hostdown="ok|warning|critical|unknown")
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# - Changed name from check_state to check_status
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# - Set hostdown to default to OK when the argument isn't specified
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# - Number of Hosts checked is now output in OK result
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#
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# Version 1.2 additions:
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#
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# - Added ability to handle ack'd and downtimed services differently
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# depending on argument provided
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# (--ack="ok|warning|critical|unknown|down|unreachable"
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# --dt="ok|warning|critical|unknown|down|unreachable")
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#
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# Version 1.1 additions:
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#
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# - Added --host=<regex>, --servhost=<regex> to allow for specific field
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# matching (host for matching hostname in host checks, servhost for
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# matching the hostname in service checks, service for matching the
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# service name in service checks)
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# - Output the number of OK services for an OK output
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#
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# Version 1.0 features:
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#
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# - Freshness check of status.log (timestamp)
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# - Match service or host checks
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# - Can ignore acknowledged or downtimes services/hosts (--ack, --dt)
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# - Can output different levels of detail dependent on # of problems
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# - Can check for number of critical, warning, or unknowns
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#
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#############################################################
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use Getopt::Long;
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use File::stat;
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Getopt::Long::Configure('bundling');
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GetOptions
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("V" => \$version, "version" => \$version,
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"h" => \$help, "help" => \$help,
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"v" => \$verbose, "verbose" => \$verbose,
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"w=s" => \$warning, "warning=s" => \$warning,
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"c=s" => \$critical, "critical=s" => \$critical,
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"u=s" => \$unknown, "unknown=s" => \$unknown,
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"p=s" => \$pattern, "pattern=s" => \$pattern,
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"S:s" => \$service, "service:s" => \$service,
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"s=s" => \$status, "status=s" => \$status,
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"d=s" => \$dir, "dir=s" => \$dir,
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"D=s" => \$details, "details=s" => \$details,
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"H:s" => \$host, "host:s" => \$host,
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"f=s" => \$freshness, "freshness=s" => \$freshness,
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"servhost=s" => \$servhost,
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"a:s" => \$ack, "ack:s" => \$ack,
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"dt:s"=> \$dt, "downtime:s" => \$dt,
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"hd:s"=> \$hdown, "hostdown:s" => \$hdown,
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"ok" => \$ok);
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#Constants:
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my $OK = 0;
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my $WARNING = 1;
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my $CRITICAL = 2;
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my $UNKNOWN = 3;
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my $crit="CRITICAL";
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my $warn="WARNING";
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my $unk="UNKNOWN";
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my $down="DOWN";
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my $unreach="UNREACHABLE";
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# Print out Help information
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if ($help) {
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printVersion();
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printHelp();
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exitcheck($UNKNOWN);
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}
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# Print out version information
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if ($version) {
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printVersion();
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exitcheck($UNKNOWN);
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}
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# Check for status log or directory argument or print usage
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if (!$status) {
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if (!$dir) {
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print "Usage: $0 -s <status file> | -d <Nagios log dir>\n";
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print "Use the --help option for full list of arguments\n";
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exitcheck($UNKNOWN);
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}
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elsif ($dir =~ m#[^/]/$#) {
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$status = $dir . "status.log";
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}
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else {
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$status = $dir . "/status.log";
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}
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}
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if (defined $host) {
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if (!$host) {
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$host="[^\\s]*";
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}
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}
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if (!$host && !$servhost) {
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$servhost="[^\\s]*";
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}
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if (!$host && !$service) {
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$service="[^\\s]*";
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}
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if (defined $ack) {
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if (!$ack) {
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$ack="ok";
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}
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elsif (!($ack =~ "ok|critical|warning|unknown|down|unreachable")) {
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print "Invalid value for ack\n";
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exitcheck($UNKNOWN);
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}
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}
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if (defined $dt) {
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if (!$dt) {
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$dt="ok";
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}
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elsif (!($dt =~ "ok|critical|warning|unknown|down|unreachable")) {
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print "Invalid value for dt\n";
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exitcheck($UNKNOWN);
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}
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}
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if (defined $hdown) {
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if (!$hdown) {
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$hdown="ok";
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}
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elsif (!($hdown =~ "ok|critical|warning|unknown|down|unreachable")) {
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print "Invalid value for hostdown\n";
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exitcheck($UNKNOWN);
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}
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}
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my $much_details = 0;
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my $ServiceNotOK = "CRITICAL|WARNING|UNKNOWN";
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my $HostNotOK = "DOWN|UNREACHABLE";
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my %numprob = ("WARNING",0,"CRITICAL",0,"UNKNOWN",0,"DOWN",0,"UNREACHABLE",0);
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my $CritOnly = 0;
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my $WarnOnly = 0;
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my $UnkOnly = 0;
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my @wlev;
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my @clev;
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my @ulev;
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my %warnlevel = ("WARNING",0,"CRITICAL",0,"UNKNOWN",0);
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my %critlevel = ("WARNING",0,"CRITICAL",0,"UNKNOWN",0);
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my %unklevel = ("WARNING",0,"CRITICAL",0,"UNKNOWN",0);
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my %hostlevel = ("DOWN",0,"UNREACHABLE",0);
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# Store Hosts in downtime
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my @hostdowntime;
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my $numdowntime = 0;
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# Store Hosts in a Down/Unreachable state
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my @hostdown;
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my $numdown = 0;
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# Hash for storing state-change to OK times for hosts:
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my %hostoktimes;
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# Number of matches in parsing
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my $nummatch = 0;
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if ($warning) {
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if ($warning =~ /,/) {
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@wlev = split /,/,$warning;
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$warnlevel{"WARNING"} = $wlev[0];
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$warnlevel{"CRITICAL"} = $wlev[1];
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if ($wlev[2] ) {
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$warnlevel{"UNKNOWN"} = $wlev[2];
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}
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}
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else {
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$WarnOnly = $warning;
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}
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}
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else {
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$WarnOnly = 1;
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}
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if ($critical) {
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if ($critical =~ /,/) {
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@clev = split /,/,$critical;
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$critlevel{"WARNING"} = $clev[0];
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$critlevel{"CRITICAL"} = $clev[1];
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if ($clev[2] ) {
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$critlevel{"UNKNOWN"} = $clev[2];
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}
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}
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else {
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$CritOnly = $critical;
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}
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}
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else {
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$CritOnly = 1;
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}
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if ($unknown) {
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if ($unknown =~ /,/) {
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@ulev = split /,/,$unknown;
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$unklevel{"WARNING"} = $ulev[0];
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$unklevel{"CRITICAL"} = $ulev[1];
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if ($ulev[2] ) {
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$unklevel{"UNKNOWN"} = $ulev[2];
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}
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}
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else {
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$UnkOnly = $unknown;
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}
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}
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else {
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$UnkOnly = 1;
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}
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if (!$freshness) {
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$freshness = 30 * 60;
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}
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else {
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$freshness = $freshness * 60;
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}
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my %ct = ("CRITICAL",0,"WARNING",0,"UNKNOWN",0,"DOWN",0,"UNREACHABLE",0);
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my %much_ct = ("CRITICAL",0,"WARNING",0,"UNKNOWN",0,"DOWN",0,"UNREACHABLE",0);
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my %output = ("CRITICAL","","WARNING","","UNKNOWN","","DOWN","","UNREACHABLE","");
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my %much_output = ("CRITICAL","","WARNING","","UNKNOWN","","DOWN","","UNREACHABLE","");
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if ($details) {
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if ($details =~ /,/) {
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my @tempv = split /,/,$details;
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$much_details = $tempv[0];
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$details = $tempv[1];
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}
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}
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open("sta","$status") || die "Cannot open status file $status!";
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$curr_time = time;
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$file_time = stat($status)->mtime;
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if ($curr_time - $file_time > $freshness) {
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printf "State CRITICAL - Status file is stale!!!\n";
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exitcheck($CRITICAL);
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}
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while(<sta>) {
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chomp;
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if (/^[^\s]+[\s]+HOST;/) {
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@hdata = split /;/,$_;
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# If you care about matching hosts (not services):
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if ($host && $hdata[1] =~ /$host/) {
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$nummatch++;
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if ( $hdata[2] =~ /$HostNotOK/ ) {
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addproblem($_,$hdata[2]);
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}
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}
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# If you are matching services, gather host information:
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else {
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if ( $hdata[2] =~ /$HostNotOK/ ) {
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$hostdown[$numdown] = $hdata[1];
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$numdown++;
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}
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else {
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$hostoktimes{$hdata[1]} = $hdata[4];
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}
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if ( $hdata[17] ne "0" ) {
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$hostdowntime[$numdowntime] = $hdata[1];
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$numdowntime++;
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}
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}
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}
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elsif (!$host && /^[^\s]+[\s]+SERVICE;/) {
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@servdata = split /;/,$_;
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if ( ( $pattern && ($_ =~ /$pattern/)) ||
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(($servdata[1] =~ /$servhost/) && ($servdata[2] =~ /$service/)) ){
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$nummatch++;
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if (($servdata[5] eq "HARD") && ($servdata[3] =~ /$ServiceNotOK/)) {
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addproblem($_,$servdata[3]);
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}
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}
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}
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}
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close("sta");
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if ($nummatch==0) {
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print "Nothing Matches your criteria!\n";
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exitcheck($UNKNOWN);
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}
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# Count the number of problems (for reference):
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if ($host) {
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$total = $numprob{"DOWN"} + $numprob{"UNREACHABLE"};
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}
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else {
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$total = $numprob{"WARNING"} + $numprob{"CRITICAL"} + $numprob{"UNKNOWN"};
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}
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my $numok = $nummatch - $total;
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# If this is a host state check:
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if ($host) {
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if ($numprob{"DOWN"}>0 || $numprob{"UNREACHABLE"}>0 ) {
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if ($details && ($total <= $details)) {
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print "State CRITICAL - $total Host Problems: $output{$down} $output{$unreach}\n";
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exitcheck($CRITICAL);
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}
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else {
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print "State CRITICAL - $numprob{$down} Hosts Down, $numprob{$unreach} Hosts Unreachable\n";
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exitcheck($CRITICAL);
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}
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}
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else {
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print "State OK - $numok Hosts Up, $total Problems\n";
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exitcheck($OK);
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}
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}
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#If you only defined a Critical level in terms of # of criticals...
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elsif ($CritOnly && ($numprob{"CRITICAL"} >= $CritOnly)) {
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countAndPrint($crit,$numprob{$crit},0);
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exitcheck($CRITICAL);
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}
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#Critical in terms on # criticals and # warnings...
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elsif (!$CritOnly && ($numprob{"WARNING"} >= $critlevel{"WARNING"} ||
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$numprob{"CRITICAL"} >= $critlevel{"CRITICAL"} ||
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$numprob{"UNKNOWN"} >= $critlevel{"UNKNOWN"} )) {
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countAndPrint($crit,$total,1);
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exitcheck($CRITICAL);
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}
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#Warning in terms of # warnings only...
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elsif ($WarnOnly && ($numprob{"WARNING"} >= $WarnOnly)) {
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countAndPrint($warn,$numprob{$warn},0);
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exitcheck($WARNING);
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}
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#Warning in terms of # warnings and # criticals...
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elsif (!$WarnOnly && ($numprob{"WARNING"} >= $warnlevel{"WARNING"} ||
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$numprob{"CRITICAL"} >= $warnlevel{"CRITICAL"} ||
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$numprob{"UNKNOWN"} >= $warnlevel{"UNKNOWN"})) {
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countAndPrint($warn,$total,1);
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exitcheck($WARNING);
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}
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#Unknown in terms on # unknown only...
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elsif ( $UnkOnly && ($numprob{"UNKNOWN"}>=$UnkOnly) ) {
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countAndPrint($unk,$numprob{$unk},0);
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exitcheck($UNKNOWN);
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|
|
}
|
||
|
|
|
||
|
|
#Unknown in terms of # warning, critical, and unknown...
|
||
|
|
elsif (!$UnkOnly && ($numprob{"WARNING"} >= $unklevel{"WARNING"} ||
|
||
|
|
$numprob{"CRITICAL"} >= $unklevel{"CRITICAL"} ||
|
||
|
|
$numprob{"UNKNOWN"} >= $unklevel{"UNKNOWN"})) {
|
||
|
|
countAndPrint($unk,$total,1);
|
||
|
|
exitcheck($UNKNOWN);
|
||
|
|
}
|
||
|
|
|
||
|
|
# Everything is OK!
|
||
|
|
else {
|
||
|
|
print "State OK - $numok OK, $total problems\n";
|
||
|
|
exitcheck($OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
############################
|
||
|
|
# Subroutines
|
||
|
|
############################
|
||
|
|
|
||
|
|
# Return the proper exit code for Critical, Warning, Unknown, or OK
|
||
|
|
sub exitcheck {
|
||
|
|
if ($ok) {
|
||
|
|
exit 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
exit $_[0];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# Decide what to print for services:
|
||
|
|
sub countAndPrint {
|
||
|
|
my $state = $_[0];
|
||
|
|
my $count = $_[1];
|
||
|
|
my $alltypes = $_[2];
|
||
|
|
my $output = "State $state - ";
|
||
|
|
|
||
|
|
if ($details) {
|
||
|
|
if ($count<=$much_details) {
|
||
|
|
if ($alltypes) {
|
||
|
|
$output .= "$count problems: $much_output{$crit} $much_output{$warn} $much_output{$unk}";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$output .= "$count \L$state\E: $much_output{$state}";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($count<=$details) {
|
||
|
|
if ($alltypes) {
|
||
|
|
$output .= "$count problems: $output{$crit} $output{$warn} $output{$unk}";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$output .= "$count \L$state\E: $output{$state}";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if ($alltypes) {
|
||
|
|
$output .= "$numprob{$crit} critical, $numprob{$warn} warning, $numprob{$unk} unknown";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$output .= "$count \L$state\E";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$output .= "$count problems";
|
||
|
|
}
|
||
|
|
|
||
|
|
print "$output\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Add-in the problem found in the status log
|
||
|
|
sub addproblem {
|
||
|
|
|
||
|
|
$test = 1;
|
||
|
|
$type = $_[1];
|
||
|
|
my $diffout = "";
|
||
|
|
|
||
|
|
my @values = split /;/,$_[0];
|
||
|
|
|
||
|
|
if (!$host) {
|
||
|
|
my $namehold = $values[1];
|
||
|
|
if ($ack && ($values[13] eq "1")) {
|
||
|
|
if ($ack =~ "ok") {
|
||
|
|
$test = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$type = "\U$ack";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($hdown && grep /$namehold/, @hostdown) {
|
||
|
|
if ($hdown =~ "ok") {
|
||
|
|
$test = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$type = "\U$hdown";
|
||
|
|
$diffout = "$values[1] is down";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($dt && (($values[27] ne "0") || (grep /$namehold/, @hostdowntime))){
|
||
|
|
if ($dt =~ "ok") {
|
||
|
|
$test = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$type = "\U$dt";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif (exists $hostoktimes{$namehold}) {
|
||
|
|
# If the state change time of the host is more recent than the last
|
||
|
|
# service check, must wait until the next service check runs!
|
||
|
|
if ($hostoktimes{$namehold} > $values[6]) {
|
||
|
|
$test = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if ($ack && $values[5]) {
|
||
|
|
if ($ack =~ "ok") {
|
||
|
|
$test = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$type = "\U$ack";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($dt && ($values[17] ne "0")) {
|
||
|
|
if ($dt =~ "ok") {
|
||
|
|
$test = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$type = "\U$dt";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($details && $test) {
|
||
|
|
if (!$host) {
|
||
|
|
if ($diffout) {
|
||
|
|
$much_output{$type} .= " $diffout;";
|
||
|
|
$output{$type} .= "$diffout;";
|
||
|
|
$much_ct{$type}++;
|
||
|
|
$ct{$type}++;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if ($much_details && $much_ct{$type}<$much_details) {
|
||
|
|
$much_output{$type} .= " $values[2] on $values[1] $values[31];";
|
||
|
|
$much_ct{$type}++;
|
||
|
|
}
|
||
|
|
if ($ct{$type} < $details) {
|
||
|
|
$output{$type} .= " $values[2] on $values[1];";
|
||
|
|
$ct{$type}++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$much_output{$type} .= " $values[1] $_[1] $values[20],";
|
||
|
|
$much_ct{type}++;
|
||
|
|
$output{$type} .= " $values[1] HOST $_[1],";
|
||
|
|
$ct{$type}++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($test) {
|
||
|
|
$numprob{$type}++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
################################
|
||
|
|
#
|
||
|
|
# Version and Help Information
|
||
|
|
#
|
||
|
|
################################
|
||
|
|
|
||
|
|
sub printVersion {
|
||
|
|
printf <<EndVersion;
|
||
|
|
$0 (nagios-plugins) 1.3
|
||
|
|
The nagios plugins come with ABSOLUTELY NO WARRANTY. You may redistribute
|
||
|
|
copies of the plugins under the terms of the GNU General Public License.
|
||
|
|
For more information about these matters, see the file named COPYING.
|
||
|
|
EndVersion
|
||
|
|
}
|
||
|
|
|
||
|
|
sub printHelp {
|
||
|
|
printf <<EOF;
|
||
|
|
|
||
|
|
This plugin parses through the Nagios status log and will return a
|
||
|
|
Critical, Warning, or Unknown state depending on the number of
|
||
|
|
Critical, Warning, and/or Unknown services found in the log
|
||
|
|
(or Down/Unreachable hosts when matching against hosts)
|
||
|
|
|
||
|
|
Usage: $0 -s <Status File> | -d <Nagios Log Directory>
|
||
|
|
[-w #[,#][,#]] [-c #[,#][,#]] [-u #[,#][,#]]
|
||
|
|
[--service=<RegEx> | --servhost=<RegEx> | --pattern=<RegEx> |
|
||
|
|
--host | --host=<RegEx>]
|
||
|
|
[--ack[=string]] [--dt[=string]] [--hostdown[=string]]
|
||
|
|
[-D #[,#]] [--ok] [-f <Log freshness in # minutes>]
|
||
|
|
$0 --help
|
||
|
|
$0 --version
|
||
|
|
NOTE: One of -s and -d must be specified
|
||
|
|
|
||
|
|
Options:
|
||
|
|
-s, --status=FILE_NAME
|
||
|
|
Location and name of status log (e.g. /usr/local/nagios/var/status.log)
|
||
|
|
-d, --dir=DIRECTORY_NAME
|
||
|
|
Directory that contains the nagios logs (e.g. /usr/local/nagios/var/)
|
||
|
|
-w, --warning=INTEGER[,INTEGER][,INTEGER]
|
||
|
|
#: Number of warnings to result in a WARNING state
|
||
|
|
OR
|
||
|
|
#,#: Warning,Criticals to result in a WARNING state
|
||
|
|
OR
|
||
|
|
#,#,#: Warning,Critical,Unknown to result in a WARNING state
|
||
|
|
Default: -w=1
|
||
|
|
-c, --critical=INTEGER[,INTEGER][,INTEGER]
|
||
|
|
#: Number of criticals to result in a CRITICAL state
|
||
|
|
OR
|
||
|
|
#,#: Warning,Criticals to result in a CRITICAL state
|
||
|
|
OR
|
||
|
|
#,#,#: Warning,Critical,Unknown to result in a CRITICAL state
|
||
|
|
Default: -c=1
|
||
|
|
-u, --unknown=INTEGER[,INTEGER][,INTEGER]
|
||
|
|
#: Number of unknowns to result in a UNKNOWN state
|
||
|
|
OR
|
||
|
|
#,#: Warning,Criticals to result in a UNKNOWN state
|
||
|
|
OR
|
||
|
|
#,#,#: Warning,Critical,Unknown to result in a UNKNOWN state
|
||
|
|
Default: -u=1
|
||
|
|
-r, --service[=REGEX]
|
||
|
|
Only match services [that match the RegEx]
|
||
|
|
(--service is default setting if no other matching arguments provided)
|
||
|
|
--servhost=REGEX
|
||
|
|
Only match services whose host match the RegEx
|
||
|
|
-p, --pattern=REGEX
|
||
|
|
Only parse for this regular expression (services only, not hosts)
|
||
|
|
--host[=REGEX]
|
||
|
|
Report on the state of hosts (whose name matches the RegEx if provided)
|
||
|
|
-a, --ack[=ok|warning|critical|unknown|down|unreachable]
|
||
|
|
Handle Acknowledged problems [--ack defaults to ok]
|
||
|
|
--dt, --downtime[=ok|warning|critical|unknown|down|unreachable]
|
||
|
|
Handle problems in scheduled downtime [--dt defaults to ok]
|
||
|
|
--hd, --hostdown[=ok|warning|critical|unknown|down|unreachable]
|
||
|
|
Handle services whose Host is down [--hd defaults to ok]
|
||
|
|
-D, --details=INTEGER[,INTEGER]
|
||
|
|
Amount of verbosity to output
|
||
|
|
If # problems:
|
||
|
|
<= 1st integer, return full details (each plugin's output)
|
||
|
|
<= 2nd integer, return some details (list each service host pair)
|
||
|
|
> 2nd integer, return the # of problems
|
||
|
|
-f, --freshness=INTEGER
|
||
|
|
Number of minutes old the log can be to make sure Nagios is running
|
||
|
|
(Default = 30 minutes)
|
||
|
|
--ok
|
||
|
|
Return an OK exit code, regardless of number of problems found
|
||
|
|
-h, --help
|
||
|
|
Print detailed help screen
|
||
|
|
-V, --version
|
||
|
|
Print version information
|
||
|
|
|
||
|
|
For service checking (use --service and/or --servhost):
|
||
|
|
1. The values of warning, critical, and unknown default to 1, i.e.
|
||
|
|
$0 will return CRITICAL if there is at least 1 critical service,
|
||
|
|
WARNING if there is at least 1 warning service, and UNKNOWN if there is
|
||
|
|
at least one unknown service.
|
||
|
|
|
||
|
|
2. If a service's host is DOWN or UNREACHABLE, $0 will use the
|
||
|
|
value of --hostdown to determine how to treat the service. Without that
|
||
|
|
argument, $0 will count the service as OK.
|
||
|
|
|
||
|
|
3. If a service's host is OK, but the last host-state change occurred more
|
||
|
|
recently than the last service check, $0 will ignore that service
|
||
|
|
(want to wait until the service has been checked after a host has recovered
|
||
|
|
or you may get service alert for services that still need to be checked)
|
||
|
|
|
||
|
|
4. If the --dt, --ack, or --hd tags are used, $0 will use the value
|
||
|
|
of the arguments to determine how to handle services in downtime, acknowledged,
|
||
|
|
or with down hosts (default=OK). For service checks, --dt will also check
|
||
|
|
if the service's host is in a downtime.
|
||
|
|
|
||
|
|
For host checking (use --host):
|
||
|
|
1. Using the --host argument, $0 will look for DOWN and UNREACHABLE
|
||
|
|
hosts. If any are found, $0 will return a CRITICAL. You can provide
|
||
|
|
an REGEX for --host to only check hosts with matching host names.
|
||
|
|
|
||
|
|
2. If the --dt or --ack tags are used, $0 will use the value of the
|
||
|
|
--dt/--ack arguments to determine the state of the host (default is OK)
|
||
|
|
|
||
|
|
EOF
|
||
|
|
}
|