max_threads_count = ENV['RAILS_MAX_THREADS'] || ENV['MAX_THREADS'] || 5 min_threads_count = ENV['RAILS_MIN_THREADS'] || ENV['MIN_THREADS'] || max_threads_count threads min_threads_count, max_threads_count # Specifies the `port` that Puma will listen on to receive requests; default is 3000. # port ENV.fetch("PORT") { 3000 } # Specifies the `environment` that Puma will run in. # environment ENV.fetch("RAILS_ENV") { "development" } # Specifies the number of `workers` to boot in clustered mode. # Workers are forked web server processes. If using threads and workers together # the concurrency of the application would be max `threads` * `workers`. # Workers do not work on JRuby or Windows (both of which do not support # processes). # workers ENV['PUMA_WORKERS'] || ENV['WEB_CONCURRENCY'] || 0 # Use the `preload_app!` method when specifying a `workers` number. # This directive tells Puma to first boot the application and load code # before forking the application. This takes advantage of Copy On Write # process behavior so workers use less memory. # preload_app!