openproject/config/puma.rb

# 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.
#
threads_min_count = OpenProject::Configuration.web_min_threads
threads_max_count = OpenProject::Configuration.web_max_threads
threads threads_min_count, [threads_min_count, threads_max_count].max

# Specifies the `port` that Puma will listen on to receive requests; default is 3000.
#
port ENV.fetch("PORT") { 3000 }.to_i

# Specifies the `environment` that Puma will run in.
#
environment ENV.fetch("RAILS_ENV") { "development" }

# 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 OpenProject::Configuration.web_workers

# 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! if ENV["RAILS_ENV"] == 'production'

# Allow puma to be restarted by `rails restart` command.
plugin :tmp_restart unless ENV["RAILS_ENV"] == 'production'

plugin :appsignal if ENV['APPSIGNAL_ENABLED'] == 'true'

# activate statsd plugin only if a host is configured explicitly
if OpenProject::Configuration.statsd_host.present?
  module ConfigurationViaOpenProject
    def initialize
      host = OpenProject::Configuration.statsd_host
      port = OpenProject::Configuration.statsd_port

      Rails.logger.debug { "Enabling puma statsd plugin (publish to udp://#{host}:#{port})" }

      @host = host
      @port = port
    end
  end

  StatsdConnector.prepend ConfigurationViaOpenProject

  plugin :statsd
end