messina

Route your app's event stream to a Graylog2 instance and get awesome. Uses the GELF format for rich logging.

Install

$ npm install messina

Setup

• Use bunyan for your app logging.
• Configure Graylog2 to accept GELF messages on some port.
• Export some environment variables:

| Name | Default Value -------|---------------- | GRAYLOG_HOST | localhost | GRAYLOG_PORT | 12201 | GRAYLOG_FACILITY | null

GRAYLOG_FACILITY should be set to the name of your app.

Recommended

I'm not trying to tell you how to live your life, but I've found that doing the following is pretty useful:

process.once('uncaughtException', function (err) {
  log.fatal(err);
  throw err;
});

I also like to patch console so that it outputs to stderr instead of stdout, but I'm a rebel. It's not strictly necessary as messina will toss out any messages it can't parse as JSON or that don't look like bunyan log events.

const util = require('util');
console.log = function() {
  process.stderr.write(util.format.apply(this, arguments) + '\n');
};
console.dir = function(object) {
  process.stderr.write(util.inspect(object) + '\n');
};

Usage

$ node app.js | messina

messina passes everything from stdin back to stdout so you can continue to pipe it down the line to other utilities, such as bunyan's own log formatter:

$ node app.js | messina | bunyan

Why messina?

The Graylog2 instance I originally coded this against was branded "Loggins" and had sweet Kenny Loggins picture up in the corner. I figured I'd reunite the greatest yacht rock duo known to man.

License

MIT

Copyright (c) 2013 Brian J. Brennan

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.

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.