CloudFormation best practices are as follows:
- Always give meaningful and relevant names to AWS CloudFormation templates and resources.
- Make sure the resources used by a CloudFormation template exist in the region where it is being executed to create a stack, for example, resources such as an EC2 key pair. It can be also be created dynamically using templates, but, if it is hardcoded, make sure it exists in the relevant region.
- Write a template and create a stack for each layer, for example, a separate stack for web servers, application servers, and networks. It will help us to minimize downtime and efficiently manage and maintain infrastructures.
- Use a cross-stack reference. This will help us to integrate resources from multiple templates into one template, especially when a separate stack is created for each layer.
- It is best practice to provide...
