Update puma config and add binstubs

bin/puma

@@ -0,0 +1,27 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'puma' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
+
+bundle_binstub = File.expand_path("bundle", __dir__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300).include?("This file was generated by Bundler")
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("puma", "puma")

bin/pumactl

@@ -0,0 +1,27 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+#
+# This file was generated by Bundler.
+#
+# The application 'pumactl' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
+
+bundle_binstub = File.expand_path("bundle", __dir__)
+
+if File.file?(bundle_binstub)
+  if File.read(bundle_binstub, 300).include?("This file was generated by Bundler")
+    load(bundle_binstub)
+  else
+    abort("Your `bin/bundle` was not generated by Bundler, so this binstub cannot run.
+Replace `bin/bundle` by running `bundle binstubs bundler --force`, then run this command again.")
+  end
+end
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("puma", "pumactl")

config/puma.rb

@@ -1,37 +1,46 @@
+# This configuration file will be evaluated by Puma. The top-level methods that
+# are invoked here are part of Puma's configuration DSL. For more information
+# about methods provided by the DSL, see https://puma.io/puma/Puma/DSL.html.
+
 # Puma can serve each request in a thread from an internal thread pool.
 # The `threads` method setting takes two numbers: a minimum and maximum.
 # Any libraries that use thread pools should be configured to match
-# the maximum value specified for Puma. Default is set to 5 threads for minimum
-# and maximum; this matches the default thread size of Active Record.
-#
-threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
-threads threads_count, threads_count
+# the maximum value specified for Puma. Default is set to 1 threads for minimum
+# and maximum;
+max_threads_count = ENV.fetch('RAILS_MAX_THREADS', 1)
+min_threads_count = ENV.fetch('RAILS_MIN_THREADS') { max_threads_count }
+threads min_threads_count, max_threads_count
+
+# Specifies that the worker count should equal the number of processors in production.
+if ENV['RAILS_ENV'] == 'production'
+  require 'concurrent-ruby'
+  worker_count = Integer(
+    ENV.fetch('PUMA_WORKER_CONCURRENCY') { Concurrent.physical_processor_count },
+  )
+  workers worker_count if worker_count > 1
+
+  if ENV['REMOTE_ADDRESS_HEADER']
+    set_remote_address header: ENV['REMOTE_ADDRESS_HEADER']
+  end
+end
+
+# Write Puma logs to file in append mode
+if ENV['PUMA_LOG'] && ENV['PUMA_LOG_ERR']
+  stdout_redirect ENV['PUMA_LOG'], ENV['PUMA_LOG_ERR'], true
+end
+
+# Specifies the `worker_timeout` threshold that Puma will use to wait before
+# terminating a worker in development environments.
+worker_timeout 3600 if ENV.fetch('RAILS_ENV', 'development') == 'development'
 
 # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
-#
-port        ENV.fetch("PORT") { 3001 }
+port ENV.fetch('PORT', 3000)
 
 # Specifies the `environment` that Puma will run in.
-#
-environment ENV.fetch("RAILS_ENV") { "development" }
+environment ENV.fetch('RAILS_ENV') { 'development' }
 
 # Specifies the `pidfile` that Puma will use.
-pidfile ENV.fetch("PIDFILE") { "tmp/pids/server.pid" }
-
-# Specifies the number of `workers` to boot in clustered mode.
-# Workers are forked webserver 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.fetch("WEB_CONCURRENCY") { 2 }
-
-# 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!
-
-# Allow puma to be restarted by `rails restart` command.
+pidfile ENV.fetch('PIDFILE') { 'tmp/pids/server.pid' }
+
+# Allow puma to be restarted by `bin/rails restart` command.
 plugin :tmp_restart