Blog category: AWS

Typical CI deployment pipeline - overview

How to validate CloudFormation template with AWS CLI

Validating your template before uploading it to CloudFormation to create resources is probably the best thing you can do to avoid the dreaded UPDATE_ROLLBACK_IN_PROGRESS status.

This can easily be done without creating the stack, by using the validate-template AWS CLI command.

Using Troposphere to create CloudFormation stack template

If you’ve ever wrote AWS CloudFormation template, you probably know that it can be a daunting task. Luckily, it can be much easier, if you use Python’s library “Troposphere”.

Troposphere lets you create Python objects in place of CloudFormation elements, does some basic validation of your input and generates the JSON template for CloudFormation for you. It is much easier and cleaner to use that writing JSON templates manually.