Configure litejob as active job adapter for dev and prod

app/jobs/sample_job.rb

@@ -0,0 +1,5 @@
+class SampleJob < ApplicationJob
+  def perform
+    Rails.logger.info "SampleJob is working!"
+  end
+end

config/environments/development.rb

@@ -73,4 +73,7 @@
 
   # Raise error when a before_action's only/except options reference missing actions
   config.action_controller.raise_on_missing_callback_actions = true
+
+  # Use a real queuing backend for Active Job (and separate queues per environment).
+  config.active_job.queue_adapter = :litejob
 end

config/environments/production.rb

@@ -70,6 +70,7 @@
   # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter = :resque
   # config.active_job.queue_name_prefix = "joy_production"
+  config.active_job.queue_adapter = :litejob
 
   config.action_mailer.perform_caching = false
 

config/litejob.yml

@@ -0,0 +1,11 @@
+# path: '/queue.db' # where the database file resides
+queues:
+  - [default, 1] # default queue with the lowest priority
+  - [urgent, 10, spawn] # this is not a default, a higher priority queue which will run every job in its own thread or fiber
+workers: 5 # how many threads/fibers to spawn for queue processing
+retries: 5 # how many times to retry a failed job before giving up
+retry_delay: 60 # seconds
+retry_delay_multiplier: 10 # 60 -> 600 -> 6000 and so on
+dead_job_retention: 864000 # 10 days to keep completely faild jobs in the _dead queue
+gc_sleep_interval: 7200 # 2 hours of sleep between checking for dead jobs that are ready to be buried forever
+# logger: STDOUT # possible values are STDOUT, STDERR, NULL or a file location