#!/usr/bin/perl -w
# -*- cperl -*-
=head1 NAME
nginx_request - Munin plugin to show the request rate of an nginx
server
=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 requests\n";
print "graph_args --base 1000\n";
print "graph_category nginx\n";
print "graph_vlabel Requests per \${graph_period}\n";
print "request.type DERIVE\n";
print "request.min 0\n";
print "request.label requests\n";
print "request.draw LINE\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));
if ($response->content =~ /^\s+(\d+)\s+(\d+)\s+(\d+)/m) {
print "request.value $3\n";
} else {
print "request.value U\n";
}
Mini Shell