How to Use the CloudFormation Sub Function

Since I started using AWS CloudFormation 4 years ago, I have seen many people using the Fn::Join command to merge information such as static text and variables in their CloudFormation templates. While this works, it can get messy and difficult to understand when things get complicated. Fn::Sub helps simplify our template definitions.

Published on

Enjoyed this article?

Share it with your network to help others discover it

Continue Learning

Discover more articles on similar topics