rails_app/rails_7.1/config/puma.rb
# 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 }
threads min_threads_count, max_threads_count
rails_env = ENV.fetch('RAILS_ENV', 'development')
if rails_env == 'production'
# If you are running more than 1 thread per process, the workers count
# should be equal to the number of processors (CPU cores) in production.
#
# It defaults to 1 because it's impossible to reliably detect how many
# CPU cores are available. Make sure to set the `WEB_CONCURRENCY` environment
# variable to match the number of processors.
worker_count = Integer(ENV.fetch('WEB_CONCURRENCY', 1))
if worker_count > 1
workers worker_count
else
preload_app!
end
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', 3000)
# Specifies the `environment` that Puma will run in.
environment rails_env
# Specifies the `pidfile` that Puma will use.
pidfile ENV.fetch('PIDFILE', 'tmp/pids/server.pid')
# Allow puma to be restarted by `bin/rails restart` command.
plugin :tmp_restart