Articles on Ruby 6 months ago The Ruby language metrics feature, currently in private beta, adds Ruby-specific time series metrics to Application Metrics to provide additional insights into memory health. 2 years ago Sometimes a Ruby app generates a segfault - usually caused by an extension. This article illustrates the typical causes, and how to find the faulty gem. How to modify Ruby and Rails apps to use a non-Postgres default database. Don't use the Asset Sync gem. Instead, use a CDN. Ruby applications should gracefully shut down when a dyno shuts down, or is restarted. Sensitive operations should be wrapped in an `ensure` clause, though care must be taken to have this clause terminate. 3 years ago A step-by-step guide for deploying your first Ruby app (using Microsoft Windows) and mastering the basics of Heroku A step-by-step guide for deploying your first Ruby app and mastering the basics of Heroku 4 years ago Why not to run WEBrick in production, and how to run a production web server instead. How to handle Windows-specific gems and the handling of Gemfile.lock on Heroku when deploying Ruby applications. A tutorial showing how to build and deploy a Ruby Sinatra application application that uses a WebSocket. 5 years ago Configuring database connections in the Active Record connection pool for apps running with a multi-threaded or multi-process web server. Quickly deploy static sites on Heroku using Ruby and Rack. Upload and process image files to S3 in Ruby using the Paperclip library. 6 years ago Specifying a particular version of Ruby via your app's Gemfile. Reference documentation describing the support for Ruby on Heroku's Cedar stack. Run rake commands on Heroku with `heroku run rake`. Develop a native mobile iOS application that integrates with a Sinatra-backed API on the Heroku Cedar stack. Config.ru settings for deploying Rack-based apps, such as Sinatra, Camping and Ramaze, to Heroku.