/usr/share/munin/plugins/nginx_status is in munin-plugins-core 2.0.19-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 | #!/usr/bin/perl -w
# -*- cperl -*-
=head1 NAME
nginx_status - Munin plugin to show connection status for nginx
=head1 APPLICABLE SYSTEMS
Any nginx host
=head1 CONFIGURATION
This shows the default configuration of this plugin. You can override
the status URL.
[nginx*]
env.url http://localhost/nginx_status
Nginx must also be configured. Firstly the stub-status module must be
compiled, and secondly it must be configured like this:
server {
listen 127.0.0.1;
server_name localhost;
location /nginx_status {
stub_status on;
access_log off;
allow 127.0.0.1;
deny all;
}
}
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=head1 VERSION
$Id$
=head1 BUGS
None known
=head1 AUTHOR
Unknown
=head1 LICENSE
Unknown. Not specified by the unknown author. Nginx has a BSD
license. Munin is GPLv2 licensed.
=cut
use Munin::Plugin;
my $ret = undef;
if (! eval "require LWP::UserAgent;"){
$ret = "LWP::UserAgent not found";
}
my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://localhost/nginx_status";
if ( exists $ARGV[0] and $ARGV[0] eq "autoconf" ) {
if ($ret){
print "no ($ret)\n";
exit 0;
}
my $ua = LWP::UserAgent->new(timeout => 30,
agent => sprintf("munin/%s (libwww-perl/%s)", $Munin::Common::Defaults::MUNIN_VERSION, $LWP::VERSION));
my $response = $ua->request(HTTP::Request->new('GET',$URL));
unless ($response->is_success and $response->content =~ /server/im) {
print "no (no nginx status on $URL)\n";
exit 0;
} else {
print "yes\n";
exit 0;
}
}
if ( exists $ARGV[0] and $ARGV[0] eq "config" ) {
print "graph_title NGINX status\n";
print "graph_args --base 1000\n";
print "graph_category nginx\n";
print "graph_vlabel Connections\n";
print "total.label Active connections\n";
print "total.info Active connections\n";
print "total.draw LINE2\n";
print "reading.label Reading\n";
print "reading.info Reading\n";
print "reading.draw LINE2\n";
print "writing.label Writing\n";
print "writing.info Writing\n";
print "writing.draw LINE2\n";
print "waiting.label Waiting\n";
print "waiting.info Waiting\n";
print "waiting.draw LINE2\n";
exit 0;
}
my $ua = LWP::UserAgent->new(timeout => 30,
agent => sprintf("munin/%s (libwww-perl/%s)", $Munin::Common::Defaults::MUNIN_VERSION, $LWP::VERSION));
my $response = $ua->request(HTTP::Request->new('GET',$URL));
#Active connections: 1845
#server accepts handled requests
# 4566318 4566318 84218236
# Reading: 2 Writing: 278 Waiting: 1565
if ($response->content =~ /Active connections:\s+(\d+).*Reading:\s+(\d+).*Writing:\s+(\d+).*Waiting:\s+(\d+)/s) {
print "total.value $1\n";
print "reading.value $2\n";
print "writing.value $3\n";
print "waiting.value $4\n";
} else {
foreach (qw(total reading writing waiting)){
print "$_.value U\n";
}
}
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