bunyan-syslog is a stream for bunyan that consumes raw records from bunyan and sends them to a syslog server.

Installation

npm install bunyan-syslog

Usage

var bunyan = require('bunyan');
var bsyslog = require('bunyan-syslog');

var log = bunyan.createLogger({
	name: 'foo',
	streams: [ {
		level: 'debug',
		type: 'raw',
		stream: bsyslog.createBunyanStream({
			type: 'sys',
			facility: bsyslog.local0,
			host: '192.168.0.1',
			port: 514
		})
	}]
});

log.debug({foo: 'bar'}, 'hello %s', 'world');

That's pretty much it. You create a syslog stream, and point it at a syslog server (UDP by default; you can force TCP by setting type: tcp in the constructor); default is to use facility user and a syslog server on 127.0.0.1:514. Note you must pass type: 'raw' to bunyan in the top-level stream object or this won't work.

If you want your logs to be in the normal bunyan format, rsyslog allows you to setup a template to format it as just the JSON object:

template(name="bunyan" type="string"
         string="%msg:R,ERE,1,FIELD:(\\{.*\\})--end%\n")

local0.* /var/log/application.log;bunyan

You can also write this using the older $template syntax:

$template bunyan,"%msg:R,ERE,1,FIELD:(\{.*\})--end%\n"

local0.* /var/log/application.log;bunyan

Mappings

This module maps bunyan levels to syslog levels as follows:

+--------+--------+
| Bunyan | Syslog |
+--------+--------+
| fatal  | emerg  |
+--------+--------+
| error  | error  |
+--------+--------+
| warn   | warn   |
+--------+--------+
| info   | info   |
+--------+--------+
| *      | debug  |
+--------+--------+

Running the test suite

You can run the test suite using the provided rsyslog configuration:

$ rsyslogd -f ./test/rsyslog.conf -i $PWD/test.pid -u $USER
$ make test
$ kill $(cat test.pid)

If you have an older rsyslog installed, you can adjust it to use the legacy syntax:

$ModLoad imudp
$ModLoad imtcp

$UDPServerAddress 127.0.0.1
$UDPServerRun 10514

$InputTCPServerRun 10514

Note that when run this way, the TCP socket will listen on 0.0.0.0.

License

MIT.