HealthyRack

A simple Rack middleware/application for checking health state.

This gem was made to fulfill personal needs and for fun. Hasn't been tested in production (yet?).

Add this line to your application's Gemfile:

gem 'healthy_rack'

HealthyRack comes with several built in checks available:

HealthyRack::Checks::Redis
HealthyRack::Checks::ActiveRecord
HealthyRack::Checks::Sequel
HealthyRack::Checks::Sidekiq

By default all of them are disabled.

Also you can easily add custom check. Just provide a subclass of HealthyRack::Check or any object with similar interface.

Example configuration:

HealthyRack.configure do |config|
  config.add_checks(
    HealthyRack::Checks::ActiveRecord.new,
    HealthyRack::Checks::Redis.new('redis://redis:7379/0')
  )
end

Just add HealthyRack.middleware to middleware stack of your rack application:

use HealthyRack.middleware, path: '/health'

where /health is desired path.

MountHealthyRack.app at your router:

Rack::URLMap.new('/health' => HealthyRack.app)

You may be interested in other projects such as:

• Pinglish
• OK Computer
• Healthcheck

Thanks for their authors for the inspiration :)