liblog-dispatch-gelf-perl/README.md

103 lines
3.2 KiB
Markdown

[![Build Status](https://travis-ci.org/avast/log-dispatch-gelf.svg?branch=master)](https://travis-ci.org/avast/log-dispatch-gelf)
# NAME
Log::Dispatch::Gelf - Log::Dispatch plugin for Graylog's GELF format.
# SYNOPSIS
use Log::Dispatch;
my $sender = ... # e.g. RabbitMQ queue.
my $log = Log::Dispatch->new(
outputs => [
#some custom sender
[
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
send_sub => sub { $sender->send($_[0]) },
],
#or send to graylog via TCP/UDP socket
[
'Gelf',
min_level => 'debug',
additional_fields => { facility => __FILE__ },
socket => {
host => 'graylog.server',
port => 21234,
protocol => 'tcp',
}
]
],
);
$log->info('It works');
$log->log(
level => 'info',
message => "It works\nMore details.",
additional_fields => { test => 1 }
);
# DESCRIPTION
Log::Dispatch::Gelf is a Log::Dispatch plugin which formats the log message
according to Graylog's GELF Format version 1.1. It supports sending via a
socket (TCP or UDP) or a user provided sender.
# CONSTRUCTOR
The constructor takes the following parameters in addition to the standard
parameters documented in [Log::Dispatch::Output](https://metacpan.org/pod/Log::Dispatch::Output):
- additional\_fields
optional hashref of additional fields of the gelf message (no need to prefix
them with \_, the prefixing is done automatically).
- chunked
optional scalar. An integer specifying the chunk size or the special
string values 'lan' or 'wan' corresponding to 8154 or 1420 respectively.
A zero chunk size means no chunking will be applied.
Chunking is only applicable to UDP connections.
- compress
optional scalar. If a true value the message will be gzipped with
IO::Compress::Gzip.
- send\_sub
mandatory sub for sending the message to graylog. It is triggered after the
gelf message is generated.
- socket
optional hashref create tcp or udp (default behavior) socket and set
`send_sub` to sending via socket
# METHODS
## $log->log( level => $, message => $, additional\_fields => \\% )
In addition to the corresponding method in [Log::Dispatch::Output](https://metacpan.org/pod/Log::Dispatch::Output) this
subclassed method takes an optional hashref of additional\_fields for the
gelf message. As in the corresponding parameter on the constructor there is
no need to prefix them with an \_. If the same key appears in both the
constructor's and method's additional\_fields then the method's value will
take precedence overriding the constructor's value for the current call.
The subclassed log method is still called with all parameters passed on.
# LICENSE
Copyright (C) Avast Software.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
# AUTHOR
Miroslav Tynovsky <tynovsky@avast.com>