Your Teacher
Chris Oliver
![](https://secure.gravatar.com/avatar/28eb32bd9afd33aa3e4c062c86ce1a9e.png?default=mp&rating=pg&size=48)
Hi, I'm Chris. I'm the creator of GoRails, Hatchbox.io and Jumpstart. I spend my time creating tutorials and tools to help Ruby on Rails developers build apps better and faster.
About This Episode
Rails 8 now ships with multiple databases by default. In this lesson, we'll learn how the configuration works and how to deploy to production with environment variables
Notes
To deploy Rails 8 with Solid Queue, Solid Cache, and Solid Cable, you can set the following environment variables to configure the databases.
PRIMARY_DATABASE_URL || DATABASE_URL
QUEUE_DATABASE_URL
CACHE_DATABASE_URL
CABLE_DATABASE_URL