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
|
#!/usr/bin/perl -T
use strict;
use warnings;
use VServer;
use Nagios::Plugin;
our $VERSION = '1.6';
our %desc = (
vm => 'virtual memory',
rss => 'resident set size',
anon => 'anonymous memory',
vml => 'locked memory',
);
sub init_nagios_plugin() {
my $plugin = Nagios::Plugin->new(
usage => "Usage: %s [-h|--help] [-w|--warnings=...] " .
"[-c|--critical=...] [-d|--domain=...] [vserver-name]",
version => $VERSION,
blurb => "This plugin could monitor the load of single vserver guests."
);
$plugin->add_arg(
spec => 'w|warning=s',
help => "Warning thresholds for the differnet memory types (VM, RSS, ANON, LOCK).",
label => "RANGE[,RANGE[,RANGE[,RANGE]]]",
);
$plugin->add_arg(
spec => 'c|critical=s',
help => "Critical thresholds for the differnet memory types (VM, RSS, ANON, LOCK).",
label => "RANGE[,RANGE[,RANGE[,RANGE]]]",
);
$plugin->add_arg(
spec => 'd|domain=s',
help => 'Domainname to append in bulk mode or to stip ' .
'in single host mode.',
label => "DOMAIN",
);
return $plugin;
}
sub parse_thresholds($) {
my $arg = shift;
if ($arg) {
if ($arg =~ m/^([-:@~0-9]*),([-:@~0-9]*),([-:@~0-9]*),([-:@~0-9]*)$/) {
return ($1, $2, $3, $4);
}
if ($arg =~ m/^([-:@~0-9]*),([-:@~0-9]*),([-:@~0-9]*)$/) {
return ($1, $2, $3, $3);
}
if ($arg =~ m/^([-:@~0-9]*),([-:@~0-9]*)$/) {
return ($1, $2, $2, $2);
}
if ($arg =~ m/^([-:@~0-9]*)$/) {
return ($1, $1, $1, $1);
}
}
return undef;
}
sub handle_vserver($$$$) {
my $id = shift;
my $warn = shift;
my $crit = shift;
my $name = shift;
my $n = init_nagios_plugin();
my $mem = VServer::get_mem($id);
if ($mem) {
my @status = [ UNKNOWN ];
my $output = "";
for my $key (qw(vm rss anon vml)) {
$n->add_perfdata(label => $key,
value => $mem->{$key},
warning => $warn->{$key},
critical => $crit->{$key},
min => 0,
);
push(@status,
$n->check_threshold(check => $mem->{$key},
warning => $warn->{$key},
critical => $crit->{$key}
)
);
my $mb = sprintf "%.2f", ($mem->{$key} / 1024) / 1024;
$output .= " - $desc{$key}: ${mb}MB";
}
$n->nagios_exit($n->max_state(@status), "used memory$output");
}
}
# fix taint mode
if ($0 =~ m/(\w[\w\/]*\w)/) {
$ENV{'NAGIOS_PLUGIN'} = $1;
}
my $n = init_nagios_plugin();
$n->getopts();
alarm $n->opts->timeout;
my (%warn, %crit);
($warn{'vm'}, $warn{'rss'}, $warn{'anon'}, $warn{'vml'}) = parse_thresholds($n->opts->w);
($crit{'vm'}, $crit{'rss'}, $crit{'anon'}, $crit{'vml'}) = parse_thresholds($n->opts->c);
my $vserver = shift;
unless ($vserver) {
$n->nagios_exit(UNKNOWN, "vserver name required");
}
my $domain = '';
$domain = ('.' . $n->opts->d) if $n->opts->d;
$domain = quotemeta $domain;
$vserver =~ s/$domain$//;
my $context = VServer::get_context_id($vserver);
unless ($context) {
$n->nagios_exit(UNKNOWN, "vserver '$vserver' not found");
}
handle_vserver($context, \%warn, \%crit, $vserver);
$n->nagios_exit(UNKNOWN, 'unable to parse memory statistics');
|
