Railstash

Railstash writes a line based JSON logfile to feed into Logstash. Request processing information is logged automatically and can be augmented further. It's also possible to write custom log entries, either with a request context or just raw log data.

Add this line to your application's Gemfile:

gem 'railstash'

And then execute:

$ bundle

Railstash can be configured using a Rails initializer:

config/initializers/railstash.rb

Railstash.configure do |c|
  c.logger = Logger.new(Rails.root + 'log/railstash.log')
  c.on_log { |data| data.merge!(app_name: 'dummy_app', source: 'dummy.example.com')  }
  c.on_log_action { |context, data| data['host'] = context.request.host }
end

Custom events can be logged using Railstash.log(data) and Railstash.log_action(context, data). The later requires you to pass the controller instance as context. This will augment the log with additional request information.

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/railstash.