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tomcat access plugin

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ricardo 2012-08-27 14:08:54 +02:00
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plugins/tomcat/tomcat_access Executable file
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#!/usr/bin/perl
# -*- perl -*-
=head1 NAME
tomcat_access - Plugin to monitor the number of accesses to Tomcat
servers.
=head1 CONFIGURATION
The following environment variables are used by this plugin
timeout - Connection timeout
url - Override default status-url
ports - HTTP port numbers
user - Manager username
password - Manager password
=head1 USAGE
Requirements:
Needs access to
http://<user>:<password>@localhost:8080/manager/status?XML=true (or
modify the address for another host).
Tomcat 5.0 or higher.
A munin-user in $CATALINA_HOME/conf/tomcat-users.xml should be set up
for this to work.
Tip: To see if it's already set up correctly, just run this plugin
with the parameter "autoconf". If you get a "yes", everything should
work like a charm already.
tomcat-users.xml example:
<user username="munin" password="<set this>" roles="standard,manager"/>
=head1 AUTHOR
Ricardo Fraile <rikr_@hotmail.com>
Rune Nordbøe Skillingstad <runesk@linpro.no>
=head1 LICENSE
Unknown license
=head1 MAGIC MARKERS
#%# family=manual
#%# capabilities=autoconf
=cut
use strict;
my $ret = undef;
if(!eval "require LWP::UserAgent;") {
$ret = "LWP::UserAgent not found";
}
if(!eval "require XML::Simple;") {
$ret .= "XML::Simple not found";
}
my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://%s:%s\@127.0.0.1:%d/manager/status?XML=true";
my $PORT = exists $ENV{'ports'} ? $ENV{'ports'} : 8080;
my $PORTAJP = exists $ENV{'portajp'} ? $ENV{'portajp'} : 8009;
my $USER = exists $ENV{'user'} ? $ENV{'user'} : "munin";
my $PASSWORD = exists $ENV{'password'} ? $ENV{'password'} : "munin";
my $TIMEOUT = exists $ENV{'timeout'} ? $ENV{'timeout'} : 30;
my $url = sprintf $URL, $USER, $PASSWORD, $PORT;
if(exists $ARGV[0] and $ARGV[0] eq "autoconf") {
if($ret) {
print "no ($ret)\n";
exit 0;
}
my $au = LWP::UserAgent->new(timeout => $TIMEOUT);
my $repsonse = $au->request(HTTP::Request->new('GET',$url));
if($repsonse->is_success and $repsonse->content =~ /<status>.*<\/status>/im) {
print "yes\n";
exit 0;
} else {
print "no (no tomcat status)\n";
exit 0;
}
}
if(exists $ARGV[0] and $ARGV[0] eq "config") {
print "graph_title Tomcat accesses\n";
print "graph_args --base 1000\n";
print "graph_vlabel accesses / \${graph_period}\n";
print "graph_category tomcat\n";
print "accesses.label Accesses\n";
print "accesses.type DERIVE\n";
print "accesses.max 1000000\n";
print "accesses.min 0\n";
exit 0;
}
my $ua = LWP::UserAgent->new(timeout => $TIMEOUT);
my $xs = new XML::Simple;
my $response = $ua->request(HTTP::Request->new('GET',$url));
my %options = ( KeyAttr => { connector => 'name' }, ForceArray => 1 );
my $xml = $xs->XMLin($response->content, %options);
if($xml->{'connector'}->{"\"".$PORTAJP."\""}->{'requestInfo'}->[0]->{'requestCount'}) {
print "accesses.value " . $xml->{'connector'}->{"\"".$PORTAJP."\""}->{'requestInfo'}->[0]->{'requestCount'} . "\n";
} else {
print "accesses.value U\n";
}
# vim:syntax=perl