155 lines
4.3 KiB
Perl
Executable File
155 lines
4.3 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# -*- mode: cperl; mode: autopair -*-
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# Magic markers:
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#%# family=auto
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#%# capabilities=autoconf
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# nginx_connection request --- Determine the requests/connection
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# served by nginx.
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# Copyright (C) 2010 António P. P. Almeida <appa@perusio.net>
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# Author: António P. P. Almeida <appa@perusio.net>
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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# Except as contained in this notice, the name(s) of the above copyright
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# holders shall not be used in advertising or otherwise to promote the sale,
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# use or other dealings in this Software without prior written authorization.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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=head1 NAME
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nginx_connection_request - Munin plugin to show number of
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requests/connection served by nginx.
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=encoding utf8
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=head1 APPLICABLE SYSTEMS
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Any nginx host
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=head1 CONFIGURATION
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This shows the default configuration of this plugin. You can override
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the status URL and User Agent.
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[nginx*]
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env.url http://localhost/nginx_status
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env.ua nginx-status-verifier/0.1
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Nginx must also be configured. Firstly the stub-status module must be
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compiled, and secondly it must be configured like this:
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server {
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listen 127.0.0.1;
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server_name localhost;
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location /nginx_status {
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stub_status on;
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access_log off;
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allow 127.0.0.1;
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deny all;
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}
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}
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=head1 MAGIC MARKERS
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#%# family=auto
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#%# capabilities=autoconf
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=head1 VERSION
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1.1
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=head1 BUGS
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None known
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=head1 AUTHOR
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António Almeida <appa@perusio.net>
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=head1 REPOSITORY
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Source code at http://github.com/perusio/nginx-munin
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=head1 LICENSE
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MIT
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=cut
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my $ret = undef;
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if (! eval "require LWP::UserAgent;") {
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$ret = "LWP::UserAgent not found";
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}
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chomp(my $fqdn=`hostname -f`);
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## Environment defined variables.
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## The default URL is nginx_status if different set it in the environment.
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my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://$fqdn/nginx_status";
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## The default user agent is ngnix-status-verifier/0.1 if different
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## set it in the environment.
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my $UA = exists $ENV{'ua'} ? $ENV{'ua'} : 'nginx-status-verifier/0.1';
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## Munin autoconf method.
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if (exists $ARGV[0] and $ARGV[0] eq "autoconf" ) {
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if ($ret) {
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print "no ($ret)\n";
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exit 0;
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}
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my $ua = LWP::UserAgent->new(timeout => 30);
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# Set the UA to something different from the libwww-perl.
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# That UA is blocked.
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$ua->agent($UA);
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my $response = $ua->request(HTTP::Request->new('GET',$URL));
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unless ($response->is_success and $response->content =~ /server/im) {
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print "no (no nginx status on $URL)\n";
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exit 0;
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} else {
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print "yes\n";
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exit 0;
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}
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}
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## Munin config method.
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if (exists $ARGV[0] and $ARGV[0] eq "config") {
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print "graph_title nginx requests/connection handled\n";
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print "graph_category webserver\n";
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print "graph_vlabel Request/Connection\n";
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print "connection_request.label requests/connection\n";
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print "connection_request.min 0\n";
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print "connection_request.draw LINE2\n";
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exit 0;
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}
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my $ua = LWP::UserAgent->new(timeout => 30);
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# Set the UA to something different from the libwww-perl.
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# That UA is blocked.
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$ua->agent($UA);
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my $response = $ua->request(HTTP::Request->new('GET',$URL));
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if ($response->content =~ /^\s+(\d+)\s+(\d+)\s+(\d+)/m) {
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printf("connection_request.value %.2f\n", $3/$2);
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} else {
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print "connection_request.value U\n";
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}
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