diff options
| author | Bernd Arnold <wopfel@gmail.com> | 2018-06-03 16:05:54 +0200 |
|---|---|---|
| committer | Bernd Arnold <wopfel@gmail.com> | 2018-06-03 16:05:54 +0200 |
| commit | 44816b4979cdad1698179e749726b8f45e5587d2 (patch) | |
| tree | 5b391c23e79d6e023fd8f1a53e2dedb2ec4ca546 /plugins-scripts/check_uptime.pl | |
| parent | de0872e2d71caec807c659c7f518adcbefe7e665 (diff) | |
| download | monitoring-plugins-44816b4979cdad1698179e749726b8f45e5587d2.tar.gz | |
Rename to .pl
All other check script also have the .pl ending
Diffstat (limited to 'plugins-scripts/check_uptime.pl')
| -rwxr-xr-x | plugins-scripts/check_uptime.pl | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/plugins-scripts/check_uptime.pl b/plugins-scripts/check_uptime.pl new file mode 100755 index 00000000..09600df4 --- /dev/null +++ b/plugins-scripts/check_uptime.pl | |||
| @@ -0,0 +1,255 @@ | |||
| 1 | #!@PERL@ -w | ||
| 2 | |||
| 3 | # check_uptime - check uptime to see how long the system is running. | ||
| 4 | # | ||
| 5 | |||
| 6 | # License Information: | ||
| 7 | # This program is free software; you can redistribute it and/or modify | ||
| 8 | # it under the terms of the GNU General Public License as published by | ||
| 9 | # the Free Software Foundation; either version 2 of the License, or | ||
| 10 | # (at your option) any later version. | ||
| 11 | # | ||
| 12 | # This program is distributed in the hope that it will be useful, | ||
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 | # GNU General Public License for more details. | ||
| 16 | # | ||
| 17 | # You should have received a copy of the GNU General Public License | ||
| 18 | # along with this program; if not, write to the Free Software | ||
| 19 | # Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 | ||
| 20 | # USA | ||
| 21 | # | ||
| 22 | ############################################################################ | ||
| 23 | |||
| 24 | use POSIX; | ||
| 25 | use strict; | ||
| 26 | use Getopt::Long; | ||
| 27 | use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c | ||
| 28 | $opt_f $opt_s | ||
| 29 | $status $state $msg); | ||
| 30 | use FindBin; | ||
| 31 | use lib "$FindBin::Bin"; | ||
| 32 | use utils qw(%ERRORS &print_revision &support &usage ); | ||
| 33 | |||
| 34 | sub print_help (); | ||
| 35 | sub print_usage (); | ||
| 36 | sub process_arguments (); | ||
| 37 | |||
| 38 | $ENV{'PATH'}='@TRUSTED_PATH@'; | ||
| 39 | $ENV{'BASH_ENV'}=''; | ||
| 40 | $ENV{'ENV'}=''; | ||
| 41 | $PROGNAME = "check_uptime"; | ||
| 42 | $state = $ERRORS{'UNKNOWN'}; | ||
| 43 | |||
| 44 | |||
| 45 | # Process arguments | ||
| 46 | |||
| 47 | Getopt::Long::Configure('bundling'); | ||
| 48 | $status = process_arguments(); | ||
| 49 | if ($status){ | ||
| 50 | print "ERROR: processing arguments\n"; | ||
| 51 | exit $ERRORS{"UNKNOWN"}; | ||
| 52 | } | ||
| 53 | |||
| 54 | |||
| 55 | # Get uptime info from file | ||
| 56 | |||
| 57 | my $uptime_file = "/proc/uptime"; | ||
| 58 | |||
| 59 | if ( ! -r $uptime_file ) { | ||
| 60 | print "ERROR: file '$uptime_file' is not readable\n"; | ||
| 61 | exit $ERRORS{"UNKNOWN"}; | ||
| 62 | } | ||
| 63 | |||
| 64 | if ( ! open FILE, "<", $uptime_file ) { | ||
| 65 | print "ERROR: cannot read from file '$uptime_file'\n"; | ||
| 66 | exit $ERRORS{"UNKNOWN"}; | ||
| 67 | } | ||
| 68 | |||
| 69 | chomp( my $file_content = <FILE> ); | ||
| 70 | close FILE; | ||
| 71 | |||
| 72 | print "$uptime_file: $file_content\n" if $verbose; | ||
| 73 | |||
| 74 | # Get first digit value (without fraction) | ||
| 75 | my ( $uptime_seconds ) = $file_content =~ /^([\d]+)/; | ||
| 76 | |||
| 77 | # Bail out if value is not numeric | ||
| 78 | if ( $uptime_seconds !~ /^\d+$/ ) { | ||
| 79 | print "ERROR: no numeric value: $uptime_seconds\n"; | ||
| 80 | exit $ERRORS{"UNKNOWN"}; | ||
| 81 | } | ||
| 82 | |||
| 83 | |||
| 84 | # Do calculations for a "pretty" format (2 weeks, 5 days, ...) | ||
| 85 | |||
| 86 | my ( $secs, $mins, $hours, $days, $weeks ); | ||
| 87 | $secs = $uptime_seconds; | ||
| 88 | if ( $secs > 100 ) { | ||
| 89 | $mins = int( $secs / 60 ); | ||
| 90 | $secs -= $mins * 60; | ||
| 91 | } | ||
| 92 | if ( $mins > 100 ) { | ||
| 93 | $hours = int( $mins / 60 ); | ||
| 94 | $mins -= $hours * 60; | ||
| 95 | } | ||
| 96 | if ( $hours > 48 ) { | ||
| 97 | $days = int( $hours / 24 ); | ||
| 98 | $hours -= $days * 24; | ||
| 99 | } | ||
| 100 | if ( $days > 14 ) { | ||
| 101 | $weeks = int( $days / 7 ); | ||
| 102 | $days -= $weeks * 7; | ||
| 103 | } | ||
| 104 | |||
| 105 | my $pretty_uptime = ""; | ||
| 106 | $pretty_uptime .= sprintf( "%d week%s, ", $weeks, $weeks == 1 ? "" : "s" ) if $weeks; | ||
| 107 | $pretty_uptime .= sprintf( "%d day%s, ", $days, $days == 1 ? "" : "s" ) if $days; | ||
| 108 | $pretty_uptime .= sprintf( "%d hour%s, ", $hours, $hours == 1 ? "" : "s" ) if $hours; | ||
| 109 | $pretty_uptime .= sprintf( "%d minute%s, ", $mins, $mins == 1 ? "" : "s" ) if $mins; | ||
| 110 | # Replace last occurence of comma with "and" | ||
| 111 | $pretty_uptime =~ s/, $/ and /; | ||
| 112 | # Always print the seconds (though it may be 0 seconds) | ||
| 113 | $pretty_uptime .= sprintf( "%d second%s", $secs, $secs == 1 ? "" : "s" ); | ||
| 114 | |||
| 115 | |||
| 116 | # Default to catch errors in program | ||
| 117 | my $state_str = "UNKNOWN"; | ||
| 118 | |||
| 119 | # Check values | ||
| 120 | if ( $uptime_seconds > $opt_c ) { | ||
| 121 | $state_str = "CRITICAL"; | ||
| 122 | } elsif ( $uptime_seconds > $opt_w ) { | ||
| 123 | $state_str = "WARNING"; | ||
| 124 | } else { | ||
| 125 | $state_str = "OK"; | ||
| 126 | } | ||
| 127 | |||
| 128 | $msg = "$state_str: "; | ||
| 129 | |||
| 130 | $msg .= "uptime is $uptime_seconds seconds. "; | ||
| 131 | $msg .= "Running for $pretty_uptime. " if $opt_f; | ||
| 132 | if ( $opt_s ) { | ||
| 133 | chomp( my $up_since = `uptime -s` ); | ||
| 134 | $msg .= "Running since $up_since. "; | ||
| 135 | } | ||
| 136 | |||
| 137 | $state = $ERRORS{$state_str}; | ||
| 138 | |||
| 139 | # Perfdata support | ||
| 140 | print "$msg|uptime=$uptime_seconds;$opt_w;$opt_c;0\n"; | ||
| 141 | exit $state; | ||
| 142 | |||
| 143 | |||
| 144 | ##################################### | ||
| 145 | #### subs | ||
| 146 | |||
| 147 | |||
| 148 | sub process_arguments(){ | ||
| 149 | GetOptions | ||
| 150 | ("V" => \$opt_V, "version" => \$opt_V, | ||
| 151 | "v" => \$opt_v, "verbose" => \$opt_v, | ||
| 152 | "h" => \$opt_h, "help" => \$opt_h, | ||
| 153 | "w=s" => \$opt_w, "warning=s" => \$opt_w, # warning if above this number | ||
| 154 | "c=s" => \$opt_c, "critical=s" => \$opt_c, # critical if above this number | ||
| 155 | "f" => \$opt_f, "for" => \$opt_f, # show "running for ..." | ||
| 156 | "s" => \$opt_s, "since" => \$opt_s, # show "running since ..." | ||
| 157 | ); | ||
| 158 | |||
| 159 | if ($opt_V) { | ||
| 160 | print_revision($PROGNAME,'@NP_VERSION@'); | ||
| 161 | exit $ERRORS{'UNKNOWN'}; | ||
| 162 | } | ||
| 163 | |||
| 164 | if ($opt_h) { | ||
| 165 | print_help(); | ||
| 166 | exit $ERRORS{'UNKNOWN'}; | ||
| 167 | } | ||
| 168 | |||
| 169 | if (defined $opt_v) { | ||
| 170 | $verbose = $opt_v; | ||
| 171 | } | ||
| 172 | |||
| 173 | unless ( defined $opt_w && defined $opt_c ) { | ||
| 174 | print_usage(); | ||
| 175 | exit $ERRORS{'UNKNOWN'}; | ||
| 176 | } | ||
| 177 | |||
| 178 | # Check if suffix is present | ||
| 179 | # Calculate parameter to seconds (to get an integer value finally) | ||
| 180 | # s = seconds | ||
| 181 | # m = minutes | ||
| 182 | # h = hours | ||
| 183 | # d = days | ||
| 184 | # w = weeks | ||
| 185 | my %factor = ( "s" => 1, | ||
| 186 | "m" => 60, | ||
| 187 | "h" => 60 * 60, | ||
| 188 | "d" => 60 * 60 * 24, | ||
| 189 | "w" => 60 * 60 * 24 * 7, | ||
| 190 | ); | ||
| 191 | if ( $opt_w =~ /^(\d+)([a-z])$/ ) { | ||
| 192 | my $value = $1; | ||
| 193 | my $suffix = $2; | ||
| 194 | print "warning: value=$value, suffix=$suffix\n" if $verbose; | ||
| 195 | if ( ! defined $factor{$suffix} ) { | ||
| 196 | print "Error: wrong suffix ($suffix) for warning"; | ||
| 197 | exit $ERRORS{'UNKNOWN'}; | ||
| 198 | } | ||
| 199 | $opt_w = $value * $factor{$suffix}; | ||
| 200 | } | ||
| 201 | if ( $opt_c =~ /^(\d+)([a-z])$/ ) { | ||
| 202 | my $value = $1; | ||
| 203 | my $suffix = $2; | ||
| 204 | print "critical: value=$value, suffix=$suffix\n" if $verbose; | ||
| 205 | if ( ! defined $factor{$suffix} ) { | ||
| 206 | print "Error: wrong suffix ($suffix) for critical"; | ||
| 207 | exit $ERRORS{'UNKNOWN'}; | ||
| 208 | } | ||
| 209 | $opt_c = $value * $factor{$suffix}; | ||
| 210 | } | ||
| 211 | |||
| 212 | if ( $opt_w !~ /^\d+$/ ) { | ||
| 213 | print "Warning (-w) is not numeric\n"; | ||
| 214 | exit $ERRORS{'UNKNOWN'}; | ||
| 215 | } | ||
| 216 | if ( $opt_c !~ /^\d+$/ ) { | ||
| 217 | print "Critical (-c) is not numeric\n"; | ||
| 218 | exit $ERRORS{'UNKNOWN'}; | ||
| 219 | } | ||
| 220 | |||
| 221 | if ( $opt_w >= $opt_c) { | ||
| 222 | print "Warning (-w) cannot be greater than Critical (-c)!\n"; | ||
| 223 | exit $ERRORS{'UNKNOWN'}; | ||
| 224 | } | ||
| 225 | |||
| 226 | return $ERRORS{'OK'}; | ||
| 227 | } | ||
| 228 | |||
| 229 | sub print_usage () { | ||
| 230 | print "Usage: $PROGNAME -w <warn> -c <crit> [-v]\n"; | ||
| 231 | } | ||
| 232 | |||
| 233 | sub print_help () { | ||
| 234 | print_revision($PROGNAME,'@NP_VERSION@'); | ||
| 235 | print "Copyright (c) 2002 Subhendu Ghosh/Carlos Canau/Benjamin Schmid\n"; | ||
| 236 | print "Copyright (c) 2018 Bernd Arnold\n"; | ||
| 237 | print "\n"; | ||
| 238 | print_usage(); | ||
| 239 | print "\n"; | ||
| 240 | print " Checks the uptime of the system using $uptime_file\n"; | ||
| 241 | print "\n"; | ||
| 242 | print "-w (--warning) = Min. number of uptime to generate warning\n"; | ||
| 243 | print "-c (--critical) = Min. number of uptime to generate critical alert ( w < c )\n"; | ||
| 244 | print "-f (--for) = Show uptime in a pretty format (Running for x weeks, x days, ...)\n"; | ||
| 245 | print "-s (--since) = Show last boot in yyyy-mm-dd HH:MM:SS format (output from 'uptime -s')\n"; | ||
| 246 | print "-h (--help)\n"; | ||
| 247 | print "-V (--version)\n"; | ||
| 248 | print "-v (--verbose) = debugging output\n"; | ||
| 249 | print "\n\n"; | ||
| 250 | print "Note: -w and -c are required arguments.\n"; | ||
| 251 | print " You can suffix both values with s for seconds (default), m (minutes), h (hours), d (days) or w (weeks).\n"; | ||
| 252 | print ""; | ||
| 253 | print "\n\n"; | ||
| 254 | support(); | ||
| 255 | } | ||
