Was wondering if there is a tutorial on how to setup background job server in Ubuntu with Rails

Is this available somewhere?

For background jobs on Ubuntu, you would normally use SystemD.

With sidekiq, you would:

1. Add the Sidekiq systemd script to /etc/systemd/system/sidekiq.service
2. sudo systemctl daemon-reload
3. sudo systemctl enable sidekiq
4. sudo systemctl start sidekiq

daemon-reload refreshes systemd so it sees the new service.
enable allows it to start when the server boots.
start starts sidekiq

You then want to run sudo systemctl restart sidekiq on deploy so it can pickup the latest Rails code for the jobs.