Production on Heroku with Puma Applications with the Puma Web Server Building Docker Images with heroku.yml Puma 4: Hammering Out H13s—A Debugging Heroku, Puma, Redis, Sidekiq and Puma config in development vs on Heroku Running Rails with MySQL on Heroku Ruby Language Metrics (Public Beta SSL Beta and Flexible Dyno Hours Metrics for Better App Performance Rails 4 - How do I optimize my Heroku Running Sidekiq On Heroku Free Dyno PUMA in production for your Rails App Rails application on Heroku [Tutorial Heroku memory issues using puma - Stack React-on-Rails app to Heroku Optimizing Dyno Usage | Heroku Dev Center
heroku puma config