Class: Appsignal::Hooks::PumaHook Private

Inherits:
Hook show all
Defined in:
lib/appsignal/hooks/puma.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Instance Method Summary collapse

Methods inherited from Hook

#initialize, #installed?, register, #try_to_install

Constructor Details

This class inherits a constructor from Appsignal::Hooks::Hook

Instance Method Details

#dependencies_present? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/appsignal/hooks/puma.rb', line 9

def dependencies_present?
  defined?(::Puma)
end

#install ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/appsignal/hooks/puma.rb', line 13

def install
  if ::Puma.respond_to?(:stats)
    Appsignal::Minutely.probes.register :puma, PumaProbe
  end

  if ::Puma.respond_to?(:cli_config) && ::Puma.cli_config
    ::Puma.cli_config.options[:before_fork] ||= []
    ::Puma.cli_config.options[:before_fork] << proc do |_id|
      Appsignal::Minutely.start
    end

    ::Puma.cli_config.options[:before_worker_boot] ||= []
    ::Puma.cli_config.options[:before_worker_boot] << proc do |_id|
      Appsignal.forked
    end

    ::Puma.cli_config.options[:before_worker_shutdown] ||= []
    ::Puma.cli_config.options[:before_worker_shutdown] << proc do |_id|
      Appsignal.stop("puma before_worker_shutdown")
    end
  end

  return unless defined?(::Puma::Cluster)
  # For clustered mode with multiple workers
  ::Puma::Cluster.class_eval do
    alias stop_workers_without_appsignal stop_workers

    def stop_workers
      Appsignal.stop("puma cluster")
      stop_workers_without_appsignal
    end
  end
end