diff --git a/plugins/other/nginx_connection_request b/plugins/other/nginx_connection_request new file mode 100755 index 00000000..47c0faf5 --- /dev/null +++ b/plugins/other/nginx_connection_request @@ -0,0 +1,154 @@ +#!/usr/bin/perl -w +# -*- mode: cperl; mode: autopair -*- +# Magic markers: +#%# family=auto +#%# capabilities=autoconf +# nginx_connection request --- Determine the requests/connection +# served by nginx. + +# Copyright (C) 2010 António P. P. Almeida + +# Author: António P. P. Almeida + +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: + +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. + +# Except as contained in this notice, the name(s) of the above copyright +# holders shall not be used in advertising or otherwise to promote the sale, +# use or other dealings in this Software without prior written authorization. + +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +# DEALINGS IN THE SOFTWARE. + +=head1 NAME + +nginx_connection_request - Munin plugin to show number of +requests/connection served by nginx. + +=encoding utf8 + +=head1 APPLICABLE SYSTEMS + +Any nginx host + +=head1 CONFIGURATION + +This shows the default configuration of this plugin. You can override +the status URL and User Agent. + + [nginx*] + env.url http://localhost/nginx_status + env.ua nginx-status-verifier/0.1 + +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 + +1.1 + +=head1 BUGS + +None known + +=head1 AUTHOR + +António Almeida + +=head1 REPOSITORY + +Source code at http://github.com/perusio/nginx-munin + +=head1 LICENSE + +MIT + +=cut + +my $ret = undef; + +if (! eval "require LWP::UserAgent;") { + $ret = "LWP::UserAgent not found"; +} + +chomp(my $fqdn=`hostname -f`); + +## Environment defined variables. +## The default URL is nginx_status if different set it in the environment. +my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://$fqdn/nginx_status"; +## The default user agent is ngnix-status-verifier/0.1 if different +## set it in the environment. +my $UA = exists $ENV{'ua'} ? $ENV{'ua'} : 'nginx-status-verifier/0.1'; + +## Munin autoconf method. +if (exists $ARGV[0] and $ARGV[0] eq "autoconf" ) { + if ($ret) { + print "no ($ret)\n"; + exit 1; + } + my $ua = LWP::UserAgent->new(timeout => 30); + # Set the UA to something different from the libwww-perl. + # That UA is blocked. + $ua->agent($UA); + 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 1; + } else { + print "yes\n"; + exit 0; + } +} + +## Munin config method. +if (exists $ARGV[0] and $ARGV[0] eq "config") { + print "graph_title nginx requests/connection handled\n"; + print "graph_category nginx\n"; + print "graph_vlabel Request/Connection\n"; + print "connection_request.label requests/connection\n"; + print "connection_request.min 0\n"; + print "connection_request.draw LINE2\n"; + + exit 0; +} + +my $ua = LWP::UserAgent->new(timeout => 30); +# Set the UA to something different from the libwww-perl. +# That UA is blocked. +$ua->agent($UA); +my $response = $ua->request(HTTP::Request->new('GET',$URL)); + +if ($response->content =~ /^\s+(\d+)\s+(\d+)\s+(\d+)/m) { + printf("connection_request.value %.2f\n", $3/$2); +} else { + print "connection_request.value U\n"; +}