I'm using [delayed job](https://github.com/collectiveidea/delayed_job#readme) to create job queues such as 'mailer'

For this to work I have to run this:

```
$ RAILS_ENV=development QUEUE=mailer rake jobs:work

```

But if the server crashes and is restarted, I need the worker to start running again automatically.

What would be the recommended way to deal with this?