Настройка проверки актуальности бекапов nagios

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

#! /usr/bin/perl -w
 
# check_fileage Copyright (C) 2011 Mohan Cheema <mohan@mohancheema.net>
# EDITED by Stanislav 2013
# Checks a file's size and modification time to make sure it's not empty
# and that it's sufficiently recent.
#
#
# 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 (or with Nagios); if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA
# ============================= SETUP NOTES ====================================
# 
# Copy this file to your Nagios plugin folder
# On a Centos install this is /usr/lib/nagios/plugins or /usr/lib64/nagios/plugins
# other distributions may vary.
#
# NAGIOS SETUP
#
# 1. Create the check service commands. (Commonly found in nrpe.cfg)
#
# command[check_backup_first]=/usr/lib/nagios/plugins/check_age -w 86400 -c 172800 -W 100000 -C 100 -f /home/backup/first
#
# 2. In your service config (Commonly found on linux.cfg may vary in your case) add 
# the service check commands:
#
#define service{
# use generic-service
# host_name localhost
# service_description ABC File Age
# check_command check_nrpe!check_backup_first
# }

 
use strict;
use English;
use Getopt::Long;
use File::stat;
use vars qw($PROGNAME);
use lib "/usr/lib/nagios/plugins" ;
use utils qw (%ERRORS &print_revision &support);
 
sub print_help ();
sub print_usage ();
 
my ($opt_c, $opt_f, $opt_w, $opt_C, $opt_W, $opt_h, $opt_V);
my ($result, $message, $age, $size, $st, $file, $attrs, $diff, $new);
my $temp=0;
 
$PROGNAME="check_fileage";
 
$opt_w = 240;
$opt_c = 600;
$opt_W = 0;
$opt_C = 0;
$opt_f = "";
 
Getopt::Long::Configure('bundling');
GetOptions(
 "V" => \$opt_V, "version" => \$opt_V,
 "h" => \$opt_h, "help" => \$opt_h,
 "f=s" => \$opt_f, "folder" => \$opt_f,
 "w=f" => \$opt_w, "warning-age=f" => \$opt_w,
 "W=f" => \$opt_W, "warning-size=f" => \$opt_W,
 "c=f" => \$opt_c, "critical-age=f" => \$opt_c,
 "C=f" => \$opt_C, "critical-size=f" => \$opt_C);
 
if ($opt_V) {
 print_revision($PROGNAME, '1.0');
 exit $ERRORS{'OK'};
}
 
if ($opt_h) {
 print_help();
 exit $ERRORS{'OK'};
}
 
$opt_f = shift unless ($opt_f);
 
# Check that file exists (can be directory or link)
unless (-d $opt_f) {
 print "FILE_AGE CRITICAL: Folder not found - $opt_f\n";
 exit $ERRORS{'CRITICAL'};
}
 
my $list = opendir DIRHANDLE, $opt_f or die "Cant open directory: $!";
 
$temp=0;
while ($_ = readdir(DIRHANDLE))
{
 $file=sprintf("%s/%s",$opt_f,$_);
 $attrs = stat("$file");
# print $file." is ";
 $diff = time()-$attrs->mtime;
# print $diff."\n";
 if($_ ne "." && $_ ne "..")
 {
 if($temp == 0)
 {
 $temp=$diff;
 $new=$file;
 }
 
 if($diff<$temp)
 {
 $temp=$diff;
 $new=$_;
 }
 else
 {
 $diff=$temp;
 #$new=$_;
 }
 }
# print $diff;
}
 
$st = File::stat::stat($opt_f."/".$new);
$age = time - $st->mtime;
$size = $st->size;
 
 
$result = 'OK';
 
if (($opt_c and $age > $opt_c) or ($opt_C and $size < $opt_C)) {
 $result = 'CRITICAL';
}
elsif (($opt_w and $age > $opt_w) or ($opt_W and $size < $opt_W)) {
 $result = 'WARNING';
}
 
print "FILE_AGE $result: $new is $age seconds old and $size bytes\n";
exit $ERRORS{$result};
 
sub print_usage () {
 print "Usage:\n";
 print " $PROGNAME [-w ] [-c ] [-W ] [-C ] -f \n";
 print " $PROGNAME [-h | --help]\n";
 print " $PROGNAME [-V | --version]\n";
}
 
sub print_help () {
 print_revision($PROGNAME, '1.0');
 print "Copyright (c) 2011 Mohan Cheema\n\n";
 print_usage();
 print "\n";
 print " File must be no more than this many seconds old (default: warn 240 secs, crit 600)\n";
 print " File must be at least this many bytes long (default: crit 0 bytes)\n";
 print "\n";
 support();
}