#!/usr/bin/perl -w =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; listen [::1]; server_name localhost; location /nginx_status { stub_status on; access_log off; allow 127.0.0.1; allow ::1; deny all; } } =head1 MAGIC MARKERS #%# family=auto #%# capabilities=autoconf =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::HTTP; my $ret = undef; if (! eval "require LWP::UserAgent;"){ $ret = "LWP::UserAgent not found"; } my $UA = Munin::Plugin::HTTP->new; my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://localhost/nginx_status"; if ( exists $ARGV[0] and $ARGV[0] eq "autoconf" ) { my $response = $UA->get($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 webserver\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 $response = $UA->get($URL); if ($response->content =~ /^\s+(\d+)\s+(\d+)\s+(\d+)/m) { print "request.value $3\n"; } else { print "request.value U\n"; }