easy-going-rails/config/puma.rb

# 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 starts a configurable number of processes (workers) and each process
# serves each request in a thread from an internal thread pool.
#
# The ideal number of threads per worker depends both on how much time the
# application spends waiting for IO operations and on how much you wish to
# to prioritize throughput over latency.
#
# As a rule of thumb, increasing the number of threads will increase how much
# traffic a given process can handle (throughput), but due to CRuby's
# Global VM Lock (GVL) it has diminishing returns and will degrade the
# response time (latency) of the application.
#
# The default is set to 3 threads as it's deemed a decent compromise between
# throughput and latency for the average Rails application.
#
# Any libraries that use a connection pool or another resource pool should
# be configured to provide at least as many connections as the number of
# threads. This includes Active Record's `pool` parameter in `database.yml`.
threads_count = ENV.fetch('RAILS_MAX_THREADS', 3)
threads threads_count, threads_count

# Specifies the `port` that Puma will listen on to receive requests; default is 3000.
port ENV.fetch('PORT', 3000)

# Allow puma to be restarted by `bin/rails restart` command.
plugin :tmp_restart

# Specify the PID file. Defaults to tmp/pids/server.pid in development.
# In other environments, only set the PID file if requested.
pidfile ENV['PIDFILE'] if ENV['PIDFILE']

on_booted do
  #   puts '********************* PUMA: booted **********************'

  # puts
  # puts '                                ____         '
  # puts '     ______   ______   _______  |  |__||_    '
  # puts '    | Ruby | |  On  | | Rails | |        )   '
  # puts '   ~ ()--() ~ ()--() ~ ()---() ~ ()---()-\   '
  # puts

  # puts
  # puts '                                                    _________'
  # puts '                                                   |=========|'
  # puts '                          __[]__         _          \_______/'
  # puts '      +================+ /______\     __(_)__    )(  \_____/   )('
  # puts '       `-+ +-----+---+ | |------|    /_______\  /__\  |   | +======+'
  # puts '         | |     |   | +-+------+-.  |=======| <____> |   | ||    ||'
  # puts '         | |     |   | |o          \_|___  __|__//\\__|___|_+======+'
  # puts '         | +=========+ |o                                     o||=+'
  # puts '         | *         * |o                                     o||||'
  # puts '         |    --%--    |o~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~o||=+'
  # puts '         +=====================================+-----------+====+'
  # puts '             |==/ ------ \=====/ ------ \===%--||o        o||____'
  # puts '               // \  L_/__\___//_\__L_/__\_/ %=||o~~~~~~~~o||===\\_____'
  # puts '              ||__ /.  ___________ .  ______/ +==============+      \  \_'
  # puts '              ||   \__/   || ||   \__/   ||     //--\\  //--\\\\   \ \ \\\_'
  # puts '               \\ / || \ //   \\ / || \ //     (( <> ))(( <> ))\\_\_\_\_\\\\'
  # puts '                \========/     \========/       \____/  \____/  `-----------+'
  # puts
end