puma.rb 1.4 KB

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  1. # frozen_string_literal: true
  2. # Puma can serve each request in a thread from an internal thread pool.
  3. # The `threads` method setting takes two numbers: a minimum and maximum.
  4. # Any libraries that use thread pools should be configured to match
  5. # the maximum value specified for Puma. Default is set to 5 threads for minimum
  6. # and maximum; this matches the default thread size of Active Record.
  7. #
  8. threads_count = ENV.fetch('RAILS_MAX_THREADS') { 5 }
  9. threads threads_count, threads_count
  10. # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
  11. #
  12. port ENV.fetch('PORT') { 3000 }
  13. # Specifies the `environment` that Puma will run in.
  14. #
  15. environment ENV.fetch('RAILS_ENV') { 'development' }
  16. # Specifies the number of `workers` to boot in clustered mode.
  17. # Workers are forked webserver processes. If using threads and workers together
  18. # the concurrency of the application would be max `threads` * `workers`.
  19. # Workers do not work on JRuby or Windows (both of which do not support
  20. # processes).
  21. #
  22. # workers ENV.fetch("WEB_CONCURRENCY") { 2 }
  23. # Use the `preload_app!` method when specifying a `workers` number.
  24. # This directive tells Puma to first boot the application and load code
  25. # before forking the application. This takes advantage of Copy On Write
  26. # process behavior so workers use less memory.
  27. #
  28. # preload_app!
  29. # Allow puma to be restarted by `rails restart` command.
  30. plugin :tmp_restart