Clean up templates from a fresh Can't initialize a new Rails application within the directory of another, please change to a non-Rails directory first.

Type 'rails' for help.

config/database.yml

@@ -4,8 +4,6 @@
 #   gem install pg
 # On macOS with Homebrew:
 #   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
-# On macOS with MacPorts:
-#   gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
 # On Windows:
 #   gem install pg
 #       Choose the win32 build.

config/locales/en.yml

@@ -1,6 +1,6 @@
-# Files in the config/locales directory are used for internationalization
-# and are automatically loaded by Rails. If you want to use locales other
-# than English, add the necessary files in this directory.
+# Files in the config/locales directory are used for internationalization and
+# are automatically loaded by Rails. If you want to use locales other than
+# English, add the necessary files in this directory.
 #
 # To use the locales, use `I18n.t`:
 #
@@ -16,18 +16,16 @@
 #
 # This would use the information in config/locales/es.yml.
 #
-# The following keys must be escaped otherwise they will not be retrieved by
-# the default I18n backend:
+# To learn more about the API, please read the Rails Internationalization guide
+# at https://guides.rubyonrails.org/i18n.html.
 #
-# true, false, on, off, yes, no
+# Be aware that YAML interprets the following case-insensitive strings as
+# booleans: `true`, `false`, `on`, `off`, `yes`, `no`. Therefore, these strings
+# must be quoted to be interpreted as strings. For example:
 #
-# Instead, surround them with single quotes.
-#
-# en:
-#   "true": "foo"
-#
-# To learn more, please read the Rails Internationalization guide
-# available at https://guides.rubyonrails.org/i18n.html.
+#     en:
+#       "yes": yup
+#       enabled: "ON"
 
 en:
   hello: "Hello world"

config/puma.rb

@@ -1,45 +1,37 @@
 # frozen_string_literal: true
 
+# 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.
-#
-max_threads_count = ENV.fetch('RAILS_MAX_THREADS', 5)
-min_threads_count = ENV.fetch('RAILS_MIN_THREADS') { max_threads_count }
+max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
+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("WEB_CONCURRENCY") { Concurrent.physical_processor_count })
+  workers worker_count if worker_count > 1
+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'
+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', 3000)
+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 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.fetch("WEB_CONCURRENCY") { 4 }
-
-# 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!
+pidfile ENV.fetch("PIDFILE") { "tmp/pids/server.pid" }
 
 # Allow puma to be restarted by `bin/rails restart` command.
 plugin :tmp_restart

config/routes.rb

@@ -1,11 +1,15 @@
 # frozen_string_literal: true
 
 Rails.application.routes.draw do
-  get 'welcome/index'
+  get "welcome/index"
+
+  # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
+  # Can be used by load balancers and uptime monitors to verify that the app is live.
+  get "up" => "rails/health#show", as: :rails_health_check
 
   resources :articles do
     resources :comments
   end
 
-  root 'welcome#index'
+  root "welcome#index"
 end