core: Nested Stack templates cannot be suppressed natively by the CDK

[Rizxcviii]

Describe the feature

Allow nested stack templates to be suppressed by removing indentation.

Use Case

When a nested stack gets too large in size, we reach an error similar to the follow

ExampleStack failed: Error: The stack named ExampleStack failed to deploy: UPDATE_ROLLBACK_COMPLETE: Template may not exceed 1000000 bytes in size.

Proposed Solution

Add the same functionality found within a Stack construct onto a NestedStack construct.

Other Information

This already exists, and it would trying to replicate the suppressTemplateIndentation onto NestedStacks.

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.174.0

Environment details (OS name and version, etc.)

Windows 11

[khushail]

@Rizxcviii , thanks for reaching out. I see that suppressTemplateIndentation is provided in StackProps as illustrtated in here -https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.StackProps.html#suppresstemplateindentation but in NestedStackProps, this is currently not supported- https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.NestedStackProps.html.

As suppressTemplateIndentation leads to reduction in size of the template -

aws-cdk/packages/aws-cdk-lib/core/lib/stack.ts

Line 34 in bbdd42c

const SUPPRESS_TEMPLATE_INDENTATION_CONTEXT = '@aws-cdk/core:suppressTemplateIndentation';

aws-cdk/packages/aws-cdk-lib/README.md

Line 1296 in bbdd42c

To do this for all templates, set the context key `@aws-cdk/core:suppressTemplateIndentation` to `true`.

suppressTemplateIndentation?

Type: boolean (optional, default: the value of @aws-cdk/core:suppressTemplateIndentation, or false if that is not set.)

Enable this flag to suppress indentation in generated CloudFormation templates.

If not specified, the value of the @aws-cdk/core:suppressTemplateIndentation context key will be used. If that is not specified, then the default value false will be used.

It would be good to have this property for NestedStack.
Marking this feature as P2 as it won't be immediately addressed by the team but would be on their radar. Contributions are also welcome.