foreman added as development dependency

Gemfile

@@ -40,6 +40,7 @@ gem "postmark"
 
 group :development, :test do
   gem "guard-rspec", require: false
+  gem "foreman"
   gem "pry-byebug"
 end
 

Gemfile.lock

@@ -83,6 +83,8 @@ GEM
       roda-flow (~> 0.3)
       thor (~> 0.19)
     ffi (1.9.14)
+    foreman (0.82.0)
+      thor (~> 0.19.1)
     formatador (0.2.5)
     guard (2.14.0)
       formatador (>= 0.2.4)
@@ -228,6 +230,7 @@ DEPENDENCIES
   dry-view
   dry-web (~> 0.5)
   dry-web-roda (~> 0.4)
+  foreman
   guard-rspec
   i18n
   inflecto
@@ -254,4 +257,4 @@ RUBY VERSION
    ruby 2.3.1p112
 
 BUNDLED WITH
-   1.12.5
+   1.13.2

Procfile

@@ -0,0 +1,2 @@
+web: bundle exec puma --port=$PORT
+worker:  bundle exec rake que:work

Procfile.dev

@@ -0,0 +1,3 @@
+web: bundle exec shotgun -p 3000 -o 0.0.0.0 config.ru
+worker:  bundle exec rake que:work
+assets: npm start

Rakefile

@@ -100,3 +100,30 @@ namespace :assets do
     FileUtils.rm_rf("#{AppPrototype::Container.config.root}/public/assets")
   end
 end
+
+require "que"
+namespace :que do
+  desc "Process Que's jobs using a worker pool"
+  task :work do
+    $stdout.puts "Starting Que's jobs..."
+    # # When changing how signals are caught, be sure to test the behavior with
+    # # the rake task in tasks/safe_shutdown.rb.
+
+    stop = false
+    %w(INT TERM).each do |signal|
+      trap(signal) { stop = true }
+    end
+
+    at_exit do
+      $stdout.puts "Finishing Que's current jobs before exiting..."
+      Que.worker_count = 0
+      Que.mode = :off
+      $stdout.puts "Que's jobs finished, exiting..."
+    end
+
+    loop do
+      sleep 0.01
+      break if stop
+    end
+  end
+end

config/settings.example.yml

@@ -7,9 +7,13 @@ development: &base
   app_mailer_from_email:
   bugsnag_api_key:
   postmark_api_key:
+  que_worker_count: 1
+  que_wake_interval: 0.1
 test:
   <<: *base
   database_url: 'postgres://localhost/app_prototype_test'
   postmark_api_key: 'POSTMARK_API_TEST'
+  que_worker_count: 0
+  que_wake_interval: 0.1
 production:
   <<: *base

system/app_prototype/settings.rb

@@ -23,5 +23,8 @@ module Required
     setting :bugsnag_api_key, Types::String
 
     setting :postmark_api_key, Types::String
+
+    setting :que_worker_count, Types::Form::Int.default(0)
+    setting :que_wake_interval, Types::Form::Float.default(0.1)
   end
 end

system/boot/que.rb

@@ -7,6 +7,8 @@
 
     container.register :connection, container["persistence.config"].gateways[:default].connection
 
+    Que.worker_count = container.settings.que_worker_count
+    Que.wake_interval = container.settings.que_wake_interval
     Que.logger = container[:logger]
     Que.mode = :sync if container.config.env == :test
     Que.connection = container["que.connection"]