rootstrap/rails_api_base

# 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 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`.
max_threads_count = ENV.fetch('RAILS_MAX_THREADS') { 3 }
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'
  worker_count = ENV.fetch('WEB_CONCURRENCY', 1).to_i
  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'

# 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 `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