From 96c8dd89353be67d44ce7a21b90f621ad89a2984 Mon Sep 17 00:00:00 2001 From: Bernd Arnold Date: Wed, 30 May 2018 19:03:43 +0200 Subject: My version of check_uptime Derived from check_mailq diff --git a/plugins-scripts/check_uptime b/plugins-scripts/check_uptime new file mode 100755 index 0000000..4bc9528 --- /dev/null +++ b/plugins-scripts/check_uptime @@ -0,0 +1,256 @@ +#!/usr/bin/perl -w + +# check_uptime - check uptime to see how long the system is running. +# + +# License Information: +# 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 +# USA +# +############################################################################ + +use POSIX; +use strict; +use Getopt::Long; +use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c + $opt_f $opt_s + $status $state $msg); +use FindBin; +use lib "$FindBin::Bin"; +use lib "/usr/lib/monitoring-plugins/"; +use utils qw(%ERRORS &print_revision &support &usage ); + +sub print_help (); +sub print_usage (); +sub process_arguments (); + +#$ENV{'PATH'}='/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin'; +$ENV{'BASH_ENV'}=''; +$ENV{'ENV'}=''; +$PROGNAME = "check_uptime"; +$state = $ERRORS{'UNKNOWN'}; + + +# Process arguments + +Getopt::Long::Configure('bundling'); +$status = process_arguments(); +if ($status){ + print "ERROR: processing arguments\n"; + exit $ERRORS{"UNKNOWN"}; +} + + +# Get uptime info from file + +my $uptime_file = "/proc/uptime"; + +if ( ! -r $uptime_file ) { + print "ERROR: file '$uptime_file' is not readable\n"; + exit $ERRORS{"UNKNOWN"}; +} + +if ( ! open FILE, "<", $uptime_file ) { + print "ERROR: cannot read from file '$uptime_file'\n"; + exit $ERRORS{"UNKNOWN"}; +} + +chomp( my $file_content = ); +close FILE; + +print "$uptime_file: $file_content\n" if $verbose; + +# Get first digit value (without fraction) +my ( $uptime_seconds ) = $file_content =~ /^([\d]+)/; + +# Bail out if value is not numeric +if ( $uptime_seconds !~ /^\d+$/ ) { + print "ERROR: no numeric value: $uptime_seconds\n"; + exit $ERRORS{"UNKNOWN"}; +} + + +# Do calculations for a "pretty" format (2 weeks, 5 days, ...) + +my ( $secs, $mins, $hours, $days, $weeks ); +$secs = $uptime_seconds; +if ( $secs > 100 ) { + $mins = int( $secs / 60 ); + $secs -= $mins * 60; +} +if ( $mins > 100 ) { + $hours = int( $mins / 60 ); + $mins -= $hours * 60; +} +if ( $hours > 48 ) { + $days = int( $hours / 24 ); + $hours -= $days * 24; +} +if ( $days > 14 ) { + $weeks = int( $days / 7 ); + $days -= $weeks * 7; +} + +my $pretty_uptime = ""; +$pretty_uptime .= sprintf( "%d week%s, ", $weeks, $weeks == 1 ? "" : "s" ) if $weeks; +$pretty_uptime .= sprintf( "%d day%s, ", $days, $days == 1 ? "" : "s" ) if $days; +$pretty_uptime .= sprintf( "%d hour%s, ", $hours, $hours == 1 ? "" : "s" ) if $hours; +$pretty_uptime .= sprintf( "%d minute%s, ", $mins, $mins == 1 ? "" : "s" ) if $mins; +# Replace last occurence of comma with "and" +$pretty_uptime =~ s/, $/ and /; +# Always print the seconds (though it may be 0 seconds) +$pretty_uptime .= sprintf( "%d second%s", $secs, $secs == 1 ? "" : "s" ); + + +# Default to catch errors in program +my $state_str = "UNKNOWN"; + +# Check values +if ( $uptime_seconds > $opt_c ) { + $state_str = "CRITICAL"; +} elsif ( $uptime_seconds > $opt_w ) { + $state_str = "WARNING"; +} else { + $state_str = "OK"; +} + +$msg = "$state_str: "; + +$msg .= "uptime is $uptime_seconds seconds. "; +$msg .= "Running for $pretty_uptime. " if $opt_f; +if ( $opt_s ) { + chomp( my $up_since = `uptime -s` ); + $msg .= "Running since $up_since. "; +} + +$state = $ERRORS{$state_str}; + +# Perfdata support +print "$msg|uptime=$uptime_seconds;$opt_w;$opt_c;0\n"; +exit $state; + + +##################################### +#### subs + + +sub process_arguments(){ + GetOptions + ("V" => \$opt_V, "version" => \$opt_V, + "v" => \$opt_v, "verbose" => \$opt_v, + "h" => \$opt_h, "help" => \$opt_h, + "w=s" => \$opt_w, "warning=s" => \$opt_w, # warning if above this number + "c=s" => \$opt_c, "critical=s" => \$opt_c, # critical if above this number + "f" => \$opt_f, "for" => \$opt_f, # show "running for ..." + "s" => \$opt_s, "since" => \$opt_s, # show "running since ..." + ); + + if ($opt_V) { + print_revision($PROGNAME,'2.2'); + exit $ERRORS{'UNKNOWN'}; + } + + if ($opt_h) { + print_help(); + exit $ERRORS{'UNKNOWN'}; + } + + if (defined $opt_v) { + $verbose = $opt_v; + } + + unless ( defined $opt_w && defined $opt_c ) { + print_usage(); + exit $ERRORS{'UNKNOWN'}; + } + + # Check if suffix is present + # Calculate parameter to seconds (to get an integer value finally) + # s = seconds + # m = minutes + # h = hours + # d = days + # w = weeks + my %factor = ( "s" => 1, + "m" => 60, + "h" => 60 * 60, + "d" => 60 * 60 * 24, + "w" => 60 * 60 * 24 * 7, + ); + if ( $opt_w =~ /^(\d+)([a-z])$/ ) { + my $value = $1; + my $suffix = $2; + print "warning: value=$value, suffix=$suffix\n" if $verbose; + if ( ! defined $factor{$suffix} ) { + print "Error: wrong suffix ($suffix) for warning"; + exit $ERRORS{'UNKNOWN'}; + } + $opt_w = $value * $factor{$suffix}; + } + if ( $opt_c =~ /^(\d+)([a-z])$/ ) { + my $value = $1; + my $suffix = $2; + print "critical: value=$value, suffix=$suffix\n" if $verbose; + if ( ! defined $factor{$suffix} ) { + print "Error: wrong suffix ($suffix) for critical"; + exit $ERRORS{'UNKNOWN'}; + } + $opt_c = $value * $factor{$suffix}; + } + + if ( $opt_w !~ /^\d+$/ ) { + print "Warning (-w) is not numeric\n"; + exit $ERRORS{'UNKNOWN'}; + } + if ( $opt_c !~ /^\d+$/ ) { + print "Critical (-c) is not numeric\n"; + exit $ERRORS{'UNKNOWN'}; + } + + if ( $opt_w >= $opt_c) { + print "Warning (-w) cannot be greater than Critical (-c)!\n"; + exit $ERRORS{'UNKNOWN'}; + } + + return $ERRORS{'OK'}; +} + +sub print_usage () { + print "Usage: $PROGNAME -w -c [-v]\n"; +} + +sub print_help () { + print_revision($PROGNAME,'2.2'); + print "Copyright (c) 2002 Subhendu Ghosh/Carlos Canau/Benjamin Schmid\n"; + print "Copyright (c) 2018 Bernd Arnold\n"; + print "\n"; + print_usage(); + print "\n"; + print " Checks the uptime of the system using $uptime_file\n"; + print "\n"; + print "-w (--warning) = Min. number of uptime to generate warning\n"; + print "-c (--critical) = Min. number of uptime to generate critical alert ( w < c )\n"; + print "-f (--for) = Show uptime in a pretty format (Running for x weeks, x days, ...)\n"; + print "-s (--since) = Show last boot in yyyy-mm-dd HH:MM:SS format (output from 'uptime -s')\n"; + print "-h (--help)\n"; + print "-V (--version)\n"; + print "-v (--verbose) = debugging output\n"; + print "\n\n"; + print "Note: -w and -c are required arguments.\n"; + print " You can suffix both values with s for seconds (default), m (minutes), h (hours), d (days) or w (weeks).\n"; + print ""; + print "\n\n"; + support(); +} -- cgit v0.10-9-g596f