sirvlog - centralized log server for applications

sirvlog is Node.JS based centralized logging server for applications.

Features

• fast
• JSON-based messages
• server-side filters in Javascript
• uses ElasticSearch
• supports syslog protocol (tcp only)

See also

• sirvlog web frontend
• log parser for sirvlog
• service healh monitors for sirvlog

Getting started

• Make sure you have ElasticSearch installed and running

• Install sirvlog by either cloning this repo or with npm:

$ npm install sirvlog

• Edit config.js to reflect your needs

• Start server:

$ node server.js

Node.JS client example:

// connect to sirvlog server
var sirvlog = require('sirvlog').createClient({
    'facility': 'nodejs',
    'server': {
        'address': '127.0.0.1',
        'port': 12514
    }
});

// register 'error' event handler
sirvlog.on('error', function(e){
    console.log('Sirvlog error occured: ', e);
});

// log a message with custom object attached
sirvlog.debug('log message test', {
        custom_field: 1,
        custom_obj: {
            i: 123
        }
});

PHP client example:

<?php

require_once('./sirvlog/php5/sirvlog_client.php');

// define fallback logger, will be used if connection to sirvlog server is lost or can't be established
function fallback_logger($message){
    file_put_contents('/tmp/sirvlog.log', '['.date(DATE_RFC822).'] '.$message."\n", FILE_APPEND);
}

// create sirvlog client instance
$sirvlog = new SirvlogCLient(array(
    'facility' => 'php',
    'server' => array(
        'address' => '127.0.0.1',
        'port' => 12514
    ),
    'fallback_logger' => 'fallback_logger'
));


// log a message with filename, linenumber and custom object
$sirvlog->log('message', 'backtrace', __FILE__, __LINE__, array(
    'custom_field' => 1,
    'custom_obj' => array(
        'i' => 123
    )
));

Ruby client example:

# encoding: utf-8

require_relative './sirvlog/ruby/lib/sirvlog_client'

sirvlog = SirvlogClient.new({
    "facility" => "ruby",
    'server' => {
        'address' => '127.0.0.1',
        'port' => 12514
    },
})

sirvlog.log("hello", "backtrace", __FILE__, __LINE__, {
    "i" => 1
});

Opscode Chef hanlder:

# sirvlog code is here:
deploy_path = "/home/sirvlog"

chef_handler "SirvLog::SirvLog" do
  source "#{deploy_path}/ruby/chef-handler/sirvlog.rb"
  arguments [{
      "facility" => "chef",
      'server' => {
          'address' => '127.0.0.1',
          'port' => 12514
      }
  }]
  only_if do
    File.exists?("#{deploy_path}/ruby/chef-handler/sirvlog.rb")
  end
  action :nothing
end.run_action(:enable)

Authors

Oleksiy Krivoshey

• https://github.com/oleksiyk

License (MIT)

Copyright (c) 2013 Sirv.

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.